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Windows Analysis Report
4wauxstb.dll

Overview

General Information

Sample name:	4wauxstb.dll
Analysis ID:	1520419
MD5:	22ae719e91b4bfcdf6122d3e2a0f272e
SHA1:	99df98dfef4b483889fa88162d20ee46340a5dbe
SHA256:	2529f6465570ac7f0b82613c694181cc10515ee045cfaa48dd7402e9b9d791bf
Infos:

Detection

Score:	48
Range:	0 - 100
Whitelisted:	false
Confidence:	100%

Signatures

Multi AV Scanner detection for submitted file

AV process strings found (often used to terminate AV products)

Checks if the current process is being debugged

Contains functionality which may be used to detect a debugger (GetProcessHeap)

Creates a process in suspended mode (likely to inject code)

One or more processes crash

Sample execution stops while process was sleeping (likely an evasion)

Sample file is different than original file name gathered from version info

Tries to resolve domain names, but no domain seems valid (expired dropper behavior)

Uses 32bit PE files

Classification

Process Tree

System is w10x64

loaddll32.exe (PID: 7380 cmdline: loaddll32.exe "C:\Users\user\Desktop\4wauxstb.dll" MD5: 51E6071F9CBA48E79F10C84515AAE618)

conhost.exe (PID: 7388 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)

cmd.exe (PID: 7432 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1 MD5: D0FCE3AFA6AA1D58CE9FA336CC2B675B)

rundll32.exe (PID: 7456 cmdline: rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1 MD5: 889B99C52A60DD49227C5E485A016679)

rundll32.exe (PID: 7440 cmdline: rundll32.exe C:\Users\user\Desktop\4wauxstb.dll,#50 MD5: 889B99C52A60DD49227C5E485A016679)

WerFault.exe (PID: 7544 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 7440 -s 596 MD5: C31336C1EFC2CCB44B4326EA793040F2)

rundll32.exe (PID: 7660 cmdline: rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#50 MD5: 889B99C52A60DD49227C5E485A016679)

WerFault.exe (PID: 7704 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 7660 -s 596 MD5: C31336C1EFC2CCB44B4326EA793040F2)

cleanup

Malware Configuration

⊘No configs have been found

Yara Signatures

⊘No yara matches

Sigma Signatures

⊘No Sigma rule has matched

Suricata Signatures

⊘No Suricata rule has matched

Joe Sandbox Signatures

Click to jump to signature section

Show All Signature Results

AV Detection

Multi AV Scanner detection for submitted file

Source: 4wauxstb.dll

ReversingLabs: Detection: 28%

Source: 4wauxstb.dll

Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, DLL

Source: 4wauxstb.dll

Static PE information: certificate valid

Source:

Binary string: C:\boneyard\whitelisting\ForMigration\templatebar2,3,85,5\Variations\TemplateBar\Release.AuxStub\m3AuxStb.pdb source: 4wauxstb.dll

Source: unknown

DNS traffic detected: query: 198.187.3.20.in-addr.arpa replaycode: Name error (3)

Source: unknown

UDP traffic detected without corresponding DNS query: 1.1.1.1

Source: global traffic

DNS traffic detected: DNS query: 198.187.3.20.in-addr.arpa

Source: 4wauxstb.dll	String found in binary or memory: http://ak.results.myway.com/mw_eula.html0
Source: Amcache.hve.7.dr	String found in binary or memory: http://upx.sf.net

Source: C:\Windows\SysWOW64\rundll32.exe

Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 7440 -s 596

Source: 4wauxstb.dll

Binary or memory string: OriginalFilenamet8AuxStb.DLLV vs 4wauxstb.dll

Source: 4wauxstb.dll

Static PE information: EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, DLL

Source: classification engine

Classification label: mal48.winDLL@12/9@1/0

Source: C:\Windows\SysWOW64\rundll32.exe

Code function: 3_2_10001447 FindResourceA,LoadResource,LockResource,

3_2_10001447

Source: C:\Windows\SysWOW64\WerFault.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess7440
Source: C:\Windows\SysWOW64\WerFault.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess7660
Source: C:\Windows\System32\conhost.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\SM0:7388:120:WilError_03

Source: C:\Windows\SysWOW64\WerFault.exe

File created: C:\ProgramData\Microsoft\Windows\WER\Temp\f49bc078-3baa-4d28-8896-35c876e2391d

Jump to behavior

Source: 4wauxstb.dll

Static PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ

Source: C:\Windows\System32\loaddll32.exe

Key opened: HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiers

Jump to behavior

Source: C:\Windows\System32\loaddll32.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\4wauxstb.dll,#50

Source: 4wauxstb.dll

ReversingLabs: Detection: 28%

Source: unknown	Process created: C:\Windows\System32\loaddll32.exe loaddll32.exe "C:\Users\user\Desktop\4wauxstb.dll"
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\4wauxstb.dll,#50
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1
Source: C:\Windows\SysWOW64\rundll32.exe	Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 7440 -s 596
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#50
Source: C:\Windows\SysWOW64\rundll32.exe	Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 7660 -s 596
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1	Jump to behavior
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe C:\Users\user\Desktop\4wauxstb.dll,#50	Jump to behavior
Source: C:\Windows\System32\loaddll32.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#50	Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1	Jump to behavior

Source: C:\Windows\System32\loaddll32.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Windows\System32\loaddll32.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Windows\SysWOW64\cmd.exe	Section loaded: apphelp.dll	Jump to behavior

Source: Window Recorder

Window detected: More than 3 window changes detected

Source: 4wauxstb.dll

Static PE information: certificate valid

Source: 4wauxstb.dll

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_DEBUG

Source:

Binary string: C:\boneyard\whitelisting\ForMigration\templatebar2,3,85,5\Variations\TemplateBar\Release.AuxStub\m3AuxStb.pdb source: 4wauxstb.dll

Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: FAILCRITICALERRORS \| NOGPFAULTERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Windows\SysWOW64\WerFault.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior

Source: C:\Windows\System32\conhost.exe

Last function: Thread delayed

Source: C:\Windows\System32\loaddll32.exe

Thread delayed: delay time: 120000

Jump to behavior

Source: Amcache.hve.7.dr	Binary or memory string: VMware
Source: Amcache.hve.7.dr	Binary or memory string: VMware Virtual USB Mouse
Source: Amcache.hve.7.dr	Binary or memory string: vmci.syshbin
Source: Amcache.hve.7.dr	Binary or memory string: VMware, Inc.
Source: Amcache.hve.7.dr	Binary or memory string: VMware20,1hbin@
Source: Amcache.hve.7.dr	Binary or memory string: c:\windows\system32\driverstore\filerepository\vmci.inf_amd64_68ed49469341f563
Source: Amcache.hve.7.dr	Binary or memory string: Ascsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.7.dr	Binary or memory string: .Z$c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.7.dr	Binary or memory string: :scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.7.dr	Binary or memory string: pci\ven_15ad&dev_0740&subsys_074015ad,pci\ven_15ad&dev_0740,root\vmwvmcihostdev
Source: Amcache.hve.7.dr	Binary or memory string: c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.7.dr	Binary or memory string: scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.7.dr	Binary or memory string: vmci.sys
Source: Amcache.hve.7.dr	Binary or memory string: VMware-56 4d 43 71 48 15 3d ed-ae e6 c7 5a ec d9 3b f0
Source: Amcache.hve.7.dr	Binary or memory string: vmci.syshbin`
Source: Amcache.hve.7.dr	Binary or memory string: \driver\vmci,\driver\pci
Source: Amcache.hve.7.dr	Binary or memory string: scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.7.dr	Binary or memory string: VMware20,1
Source: Amcache.hve.7.dr	Binary or memory string: Microsoft Hyper-V Generation Counter
Source: Amcache.hve.7.dr	Binary or memory string: NECVMWar VMware SATA CD00
Source: Amcache.hve.7.dr	Binary or memory string: VMware Virtual disk SCSI Disk Device
Source: Amcache.hve.7.dr	Binary or memory string: scsi\cdromnecvmwarvmware_sata_cd001.00,scsi\cdromnecvmwarvmware_sata_cd00,scsi\cdromnecvmwar,scsi\necvmwarvmware_sata_cd001,necvmwarvmware_sata_cd001,gencdrom
Source: Amcache.hve.7.dr	Binary or memory string: scsi\diskvmware__virtual_disk____2.0_,scsi\diskvmware__virtual_disk____,scsi\diskvmware__,scsi\vmware__virtual_disk____2,vmware__virtual_disk____2,gendisk
Source: Amcache.hve.7.dr	Binary or memory string: Microsoft Hyper-V Virtualization Infrastructure Driver
Source: Amcache.hve.7.dr	Binary or memory string: VMware PCI VMCI Bus Device
Source: Amcache.hve.7.dr	Binary or memory string: VMware VMCI Bus Device
Source: Amcache.hve.7.dr	Binary or memory string: VMware Virtual RAM
Source: Amcache.hve.7.dr	Binary or memory string: BiosVendor:VMware, Inc.,BiosVersion:VMW201.00V.20829224.B64.2211211842,BiosReleaseDate:11/21/2022,BiosMajorRelease:0xff,BiosMinorRelease:0xff,SystemManufacturer:VMware, Inc.,SystemProduct:VMware20,1,SystemFamily:,SystemSKUNumber:,BaseboardManufacturer:,BaseboardProduct:,BaseboardVersion:,EnclosureType:0x1
Source: Amcache.hve.7.dr	Binary or memory string: vmci.inf_amd64_68ed49469341f563

Source: C:\Windows\SysWOW64\rundll32.exe	Process queried: DebugPort	Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process queried: DebugPort	Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process queried: DebugPort	Jump to behavior
Source: C:\Windows\SysWOW64\rundll32.exe	Process queried: DebugPort	Jump to behavior

Source: C:\Windows\SysWOW64\rundll32.exe

Code function: 3_2_10001792 GetProcessHeap,HeapReAlloc,

3_2_10001792

Source: C:\Windows\SysWOW64\cmd.exe

Process created: C:\Windows\SysWOW64\rundll32.exe rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1

Jump to behavior

Source: Amcache.hve.7.dr	Binary or memory string: c:\programdata\microsoft\windows defender\platform\4.18.23080.2006-0\msmpeng.exe
Source: Amcache.hve.7.dr	Binary or memory string: msmpeng.exe
Source: Amcache.hve.7.dr	Binary or memory string: c:\program files\windows defender\msmpeng.exe
Source: Amcache.hve.7.dr	Binary or memory string: MsMpEng.exe

Mitre Att&ck Matrix

Reconnaissance	Resource Development	Initial Access	Execution	Persistence	Privilege Escalation	Defense Evasion	Credential Access	Discovery	Lateral Movement	Collection	Command and Control	Exfiltration	Impact
Gather Victim Identity Information	Acquire Infrastructure	Valid Accounts	Windows Management Instrumentation	1 DLL Side-Loading	11 Process Injection	1 Rundll32	OS Credential Dumping	31 Security Software Discovery	Remote Services	Data from Local System	1 Non-Application Layer Protocol	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	11 Virtualization/Sandbox Evasion	LSASS Memory	11 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	1 Application Layer Protocol	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	11 Process Injection	Security Account Manager	1 System Information Discovery	SMB/Windows Admin Shares	Data from Network Shared Drive	Steganography	Automated Exfiltration	Data Encrypted for Impact
Employee Names	Virtual Private Server	Local Accounts	Cron	Login Hook	Login Hook	1 DLL Side-Loading	NTDS	System Network Configuration Discovery	Distributed Component Object Model	Input Capture	Protocol Impersonation	Traffic Duplication	Data Destruction

Behavior Graph

Hide Legend

Legend:

Process
Signature
Created File
DNS/IP Info
Is Dropped
Is Windows Process
Number of created Registry Values
Number of created Files
Visual Basic
Delphi
Java
.Net C# or VB.NET
C, C++ or other language
Is malicious
Internet

Source	Detection	Scanner	Label	Link
4wauxstb.dll	29%	ReversingLabs	Win32.PUA.MyWebSearch

Source	Detection	Scanner	Label	Link
http://upx.sf.net	0%	URL Reputation	safe

Domains and IPs

Contacted Domains

Name	IP	Active	Malicious	Antivirus Detection	Reputation
198.187.3.20.in-addr.arpa	unknown	unknown	false		unknown

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	Amcache.hve.7.dr	false	URL Reputation: safe	unknown
http://ak.results.myway.com/mw_eula.html0	4wauxstb.dll	false		unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1520419
Start date and time:	2024-09-27 10:47:38 +02:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 4m 33s
Hypervisor based Inspection enabled:	false
Report type:	full
Cookbook file name:	default.jbs
Analysis system description:	Windows 10 x64 22H2 with Office Professional Plus 2019, Chrome 117, Firefox 118, Adobe Reader DC 23, Java 8 Update 381, 7zip 23.01
Number of analysed new started processes analysed:	15
Number of new started drivers analysed:	0
Number of existing processes analysed:	0
Number of existing drivers analysed:	0
Number of injected processes analysed:	0
Technologies:	HCA enabled EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	4wauxstb.dll
Detection:	MAL
Classification:	mal48.winDLL@12/9@1/0
EGA Information:	Successful, ratio: 100%
HCA Information:	Successful, ratio: 100% Number of executed functions: 3 Number of non-executed functions: 2
Cookbook Comments:	Found application associated with file extension: .dll

Warnings

Exclude process from analysis (whitelisted): MpCmdRun.exe, WerFault.exe, WMIADAP.exe, SIHClient.exe, conhost.exe, svchost.exe
Excluded IPs from analysis (whitelisted): 20.42.65.92
Excluded domains from analysis (whitelisted): onedsblobprdeus17.eastus.cloudapp.azure.com, ocsp.digicert.com, login.live.com, slscr.update.microsoft.com, blobcollector.events.data.trafficmanager.net, ctldl.windowsupdate.com, umwatson.events.data.microsoft.com, fe3cr.delivery.mp.microsoft.com
Not all processes where analyzed, report is missing behavior information
VT rate limit hit for: 4wauxstb.dll

Simulations

Behavior and APIs

Time	Type	Description
04:48:33	API Interceptor	1x Sleep call for process: loaddll32.exe modified
04:48:48	API Interceptor	2x Sleep call for process: WerFault.exe modified

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_5feb8dbdac39ae1a7256d1fc87637b91e032d0d8_7522e4b5_fe35a70d-95da-4053-a65d-1baee6f97000\Report.wer

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	65536
Entropy (8bit):	0.8292068553821702
Encrypted:	false
SSDEEP:	192:7PDihTOWi0y6LEjjeTWzuiFxZ24IO8dci:LDi8Wpy6LEjjeizuiFxY4IO8dci
MD5:	80A6BFF5B2BAF91D3973E693EEEF742F
SHA1:	8A31512242184F2B36AA8844F159BEA0E8B09D1A
SHA-256:	C23E9FFB47FD4FB3A6FB9275284DA0F12F78AB907BF50CF1985009AAC5493402
SHA-512:	04EE8B454C14EB5E04ECE251B7E4CA751A871AF48ADE5A5A6AE1A70BE38E2B14479F65B0AFAF6E2A009B018470097873510482466E651EB5837D22862D8C2651
Malicious:	false
Reputation:	low
Preview:	..V.e.r.s.i.o.n.=.1.....E.v.e.n.t.T.y.p.e.=.A.P.P.C.R.A.S.H.....E.v.e.n.t.T.i.m.e.=.1.3.3.7.1.9.0.0.5.1.3.4.9.0.6.9.8.0.....R.e.p.o.r.t.T.y.p.e.=.2.....C.o.n.s.e.n.t.=.1.....U.p.l.o.a.d.T.i.m.e.=.1.3.3.7.1.9.0.0.5.1.4.1.0.0.0.6.7.0.....R.e.p.o.r.t.S.t.a.t.u.s.=.5.2.4.3.8.4.....R.e.p.o.r.t.I.d.e.n.t.i.f.i.e.r.=.f.e.3.5.a.7.0.d.-.9.5.d.a.-.4.0.5.3.-.a.6.5.d.-.1.b.a.e.e.6.f.9.7.0.0.0.....I.n.t.e.g.r.a.t.o.r.R.e.p.o.r.t.I.d.e.n.t.i.f.i.e.r.=.3.c.2.e.2.f.3.1.-.7.c.9.c.-.4.9.1.1.-.a.1.0.8.-.8.2.d.8.7.a.9.3.a.7.4.5.....W.o.w.6.4.H.o.s.t.=.3.4.4.0.4.....W.o.w.6.4.G.u.e.s.t.=.3.3.2.....N.s.A.p.p.N.a.m.e.=.r.u.n.d.l.l.3.2...e.x.e.....O.r.i.g.i.n.a.l.F.i.l.e.n.a.m.e.=.R.U.N.D.L.L.3.2...E.X.E.....A.p.p.S.e.s.s.i.o.n.G.u.i.d.=.0.0.0.0.1.d.e.c.-.0.0.0.1.-.0.0.1.4.-.f.5.a.2.-.8.8.0.8.b.a.1.0.d.b.0.1.....T.a.r.g.e.t.A.p.p.I.d.=.W.:.0.0.0.0.f.5.1.9.f.e.e.c.4.8.6.d.e.8.7.e.d.7.3.c.b.9.2.d.3.c.a.c.8.0.2.4.0.0.0.0.0.0.0.0.!.0.0.0.0.8.f.a.8.8.9.e.4.5.6.a.a.6.4.6.a.4.d.0.a.4.3.4.9.9.7.7.4.3.0.c.e.5.f.a.5.e.

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_c3a120e38c8a924168df415827e44f45cab79cd2_7522e4b5_f3e55f13-f12d-4fe0-900c-a383a4c7827a\Report.wer

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	65536
Entropy (8bit):	0.8291501230106552
Encrypted:	false
SSDEEP:	192:EAi+TOAdq0oDW4BRjeTWzuiFxZ24IO8dci:TitixOfBRjeizuiFxY4IO8dci
MD5:	DBB4B6D841949E9B040B6738D52D4E9C
SHA1:	8542B874DDF928C718BCD271D74567D9E1D9F060
SHA-256:	16FACF67F870FDECC5C9C745E2270F7CC0229F93D48584085F5B3B5972ECAB6F
SHA-512:	83301B14F0CC8E0C5A2897EE074A56CB29BDBC7242B4C2C6E6BB227644F7111A18228EC06A2AAB450F65CAF97131DE07A3EB7CB1B6C3CDF8F0C1969E46523363
Malicious:	false
Reputation:	low
Preview:	..V.e.r.s.i.o.n.=.1.....E.v.e.n.t.T.y.p.e.=.A.P.P.C.R.A.S.H.....E.v.e.n.t.T.i.m.e.=.1.3.3.7.1.9.0.0.5.1.0.7.4.7.6.2.0.0.....R.e.p.o.r.t.T.y.p.e.=.2.....C.o.n.s.e.n.t.=.1.....U.p.l.o.a.d.T.i.m.e.=.1.3.3.7.1.9.0.0.5.1.1.3.8.8.2.4.5.9.....R.e.p.o.r.t.S.t.a.t.u.s.=.5.2.4.3.8.4.....R.e.p.o.r.t.I.d.e.n.t.i.f.i.e.r.=.f.3.e.5.5.f.1.3.-.f.1.2.d.-.4.f.e.0.-.9.0.0.c.-.a.3.8.3.a.4.c.7.8.2.7.a.....I.n.t.e.g.r.a.t.o.r.R.e.p.o.r.t.I.d.e.n.t.i.f.i.e.r.=.8.e.8.e.1.3.c.b.-.a.c.a.a.-.4.6.d.2.-.9.7.6.b.-.9.4.a.e.e.6.7.2.0.3.a.6.....W.o.w.6.4.H.o.s.t.=.3.4.4.0.4.....W.o.w.6.4.G.u.e.s.t.=.3.3.2.....N.s.A.p.p.N.a.m.e.=.r.u.n.d.l.l.3.2...e.x.e.....O.r.i.g.i.n.a.l.F.i.l.e.n.a.m.e.=.R.U.N.D.L.L.3.2...E.X.E.....A.p.p.S.e.s.s.i.o.n.G.u.i.d.=.0.0.0.0.1.d.1.0.-.0.0.0.1.-.0.0.1.4.-.8.d.9.5.-.b.b.0.6.b.a.1.0.d.b.0.1.....T.a.r.g.e.t.A.p.p.I.d.=.W.:.0.0.0.0.f.5.1.9.f.e.e.c.4.8.6.d.e.8.7.e.d.7.3.c.b.9.2.d.3.c.a.c.8.0.2.4.0.0.0.0.0.0.0.0.!.0.0.0.0.8.f.a.8.8.9.e.4.5.6.a.a.6.4.6.a.4.d.0.a.4.3.4.9.9.7.7.4.3.0.c.e.5.f.a.5.e.

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8F94.tmp.dmp

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	Mini DuMP crash report, 14 streams, Fri Sep 27 08:48:30 2024, 0x1205a4 type
Category:	dropped
Size (bytes):	285592
Entropy (8bit):	2.557863760494463
Encrypted:	false
SSDEEP:	1536:Bz+878iR/Thq1aFblIRjWVV25q9KAtkAnO1BF/tQ:zb7cgm0V25MKHpQ
MD5:	899643B89AB74A6992427F6FE1C8620E
SHA1:	5EB3C8162B1193EB9A0C2F95543B6FDEF678C8FB
SHA-256:	D456D5165142395A6AA8FCB19178F6FEAFF7A2801EF27AAE650F4F6DE05A37BC
SHA-512:	09A4B29159C51F9B9B980AA5CE4F1EA527C8D08829E1890439F062D2A7482E03457F036D87F68C0806FAD456EDAC5FE2467ED442E77D76FD9F2176AF79302084
Malicious:	false
Reputation:	low
Preview:	MDMP..a..... .......^q.f.........................................&..........T.......8...........T................D......................x...............................................................................eJ..............GenuineIntel............T...........^q.f.............................0..1...........,...E.a.s.t.e.r.n. .S.t.a.n.d.a.r.d. .T.i.m.e...........................................E.a.s.t.e.r.n. .S.u.m.m.e.r. .T.i.m.e...............................................1.9.0.4.1...1...a.m.d.6.4.f.r.e...v.b._.r.e.l.e.a.s.e...1.9.1.2.0.6.-.1.4.0.6...................................................................................................................................................................................................................................................................................................................................................................................................................................................

C:\ProgramData\Microsoft\Windows\WER\Temp\WER910C.tmp.WERInternalMetadata.xml

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	8270
Entropy (8bit):	3.691711280356437
Encrypted:	false
SSDEEP:	192:R6l7wVeJ6/6uP8+6Yur68PgmfTRJiqufepDT89bc1sfn0m:R6lXJy6uP8+6Yy68PgmfTRJidPcOfB
MD5:	9CA6603D152D564A6DE77822FC8209D2
SHA1:	EB88417DDB0C1518BE4EDF8A82C0876F691F7A13
SHA-256:	67E94F186B58DA6B88662345FED644DE60C9449CE16E7993C1D39CEED7EDC8D1
SHA-512:	4EC719C137FA89F548950539ED9771B777F2E500485ECF1402B3A33ECF943622431F3333D1570BF88DC870E6A2B84C50C749612B984D53C782728EBC79A75CDE
Malicious:	false
Preview:	..<.?.x.m.l. .v.e.r.s.i.o.n.=.".1...0.". .e.n.c.o.d.i.n.g.=.".U.T.F.-.1.6.".?.>.....<.W.E.R.R.e.p.o.r.t.M.e.t.a.d.a.t.a.>.......<.O.S.V.e.r.s.i.o.n.I.n.f.o.r.m.a.t.i.o.n.>.........<.W.i.n.d.o.w.s.N.T.V.e.r.s.i.o.n.>.1.0...0.<./.W.i.n.d.o.w.s.N.T.V.e.r.s.i.o.n.>.........<.B.u.i.l.d.>.1.9.0.4.5.<./.B.u.i.l.d.>.........<.P.r.o.d.u.c.t.>.(.0.x.3.0.).:. .W.i.n.d.o.w.s. .1.0. .P.r.o.<./.P.r.o.d.u.c.t.>.........<.E.d.i.t.i.o.n.>.P.r.o.f.e.s.s.i.o.n.a.l.<./.E.d.i.t.i.o.n.>.........<.B.u.i.l.d.S.t.r.i.n.g.>.1.9.0.4.1...2.0.0.6...a.m.d.6.4.f.r.e...v.b._.r.e.l.e.a.s.e...1.9.1.2.0.6.-.1.4.0.6.<./.B.u.i.l.d.S.t.r.i.n.g.>.........<.R.e.v.i.s.i.o.n.>.2.0.0.6.<./.R.e.v.i.s.i.o.n.>.........<.F.l.a.v.o.r.>.M.u.l.t.i.p.r.o.c.e.s.s.o.r. .F.r.e.e.<./.F.l.a.v.o.r.>.........<.A.r.c.h.i.t.e.c.t.u.r.e.>.X.6.4.<./.A.r.c.h.i.t.e.c.t.u.r.e.>.........<.L.C.I.D.>.2.0.5.7.<./.L.C.I.D.>.......<./.O.S.V.e.r.s.i.o.n.I.n.f.o.r.m.a.t.i.o.n.>.......<.P.r.o.c.e.s.s.I.n.f.o.r.m.a.t.i.o.n.>.........<.P.i.d.>.7.4.4.0.<./.P.i.

C:\ProgramData\Microsoft\Windows\WER\Temp\WER916B.tmp.xml

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	XML 1.0 document, ASCII text, with CRLF line terminators
Category:	dropped
Size (bytes):	4656
Entropy (8bit):	4.457277209358839
Encrypted:	false
SSDEEP:	48:cvIwWl8zsHJg77aI9yNWpW8VYjkLYm8M4JCdP9FAd6+q8/pWtFGScSFd:uIjfpI7I87VROJ16LfJ3Fd
MD5:	B74B17A21C16CCA8F63C1F269CF274DC
SHA1:	8C7EAC40E0832008F9869D8A65BF5A907FF4A2D3
SHA-256:	66F4DBFE5B1564CAE651778AFE943E5BC8122DC59CE0BDEB4B2F78FD5C7FE337
SHA-512:	3FF312C2C51AA23AC839612CC052DCAD6B23AF1D939CE4AB5EAD6E24FCE5D614F9CFC8B9C319496D10A65C07A8CE1E45EF8DB103F724958BFE95D9720FD2CF3F
Malicious:	false
Preview:	<?xml version="1.0" encoding="UTF-8" standalone="yes"?>..<req ver="2">.. <tlm>.. <src>.. <desc>.. <mach>.. <os>.. <arg nm="vermaj" val="10" />.. <arg nm="vermin" val="0" />.. <arg nm="verbld" val="19045" />.. <arg nm="vercsdbld" val="2006" />.. <arg nm="verqfe" val="2006" />.. <arg nm="csdbld" val="2006" />.. <arg nm="versp" val="0" />.. <arg nm="arch" val="9" />.. <arg nm="lcid" val="2057" />.. <arg nm="geoid" val="223" />.. <arg nm="sku" val="48" />.. <arg nm="domain" val="0" />.. <arg nm="prodsuite" val="256" />.. <arg nm="ntprodtype" val="1" />.. <arg nm="platid" val="2" />.. <arg nm="tmsi" val="518391" />.. <arg nm="osinsty" val="1" />.. <arg nm="iever" val="11.789.19041.0-11.0.1000" />.. <arg nm="portos" val="0" />.. <arg nm="ram" val="409

C:\ProgramData\Microsoft\Windows\WER\Temp\WER9A52.tmp.dmp

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	Mini DuMP crash report, 14 streams, Fri Sep 27 08:48:33 2024, 0x1205a4 type
Category:	dropped
Size (bytes):	285848
Entropy (8bit):	2.5419433406859135
Encrypted:	false
SSDEEP:	768:1P5KQ/E4OD7noY0AB/69DHAOfqf4RWC4NKoWwagqNhEgizexENVpa1u4Lz:1MQ/EZb0D9fFoNKf/NygiKENH4Lz
MD5:	D7B308131E4B2B07E6ECE0213184FFE7
SHA1:	7EA7B01A6E8E208F15570A21B80B3531A883432E
SHA-256:	B3CA5066FBDBDDB4802770C8590809DA3A3D875306E123E311AFB613D373FA34
SHA-512:	5602D4487AC09E2C5D9862671DD33473A7C818D26672E69EF908AD84DD24DC43C223F21EEAE82E04AFC613A1AE8AB2E4332848DFC011D393FF0BF6D05E67B075
Malicious:	false
Preview:	MDMP..a..... .......aq.f.........................................&..........T.......8...........T................E......................x...............................................................................eJ..............GenuineIntel............T...........aq.f.............................0..1...........,...E.a.s.t.e.r.n. .S.t.a.n.d.a.r.d. .T.i.m.e...........................................E.a.s.t.e.r.n. .S.u.m.m.e.r. .T.i.m.e...............................................1.9.0.4.1...1...a.m.d.6.4.f.r.e...v.b._.r.e.l.e.a.s.e...1.9.1.2.0.6.-.1.4.0.6...................................................................................................................................................................................................................................................................................................................................................................................................................................................

C:\ProgramData\Microsoft\Windows\WER\Temp\WER9BCA.tmp.WERInternalMetadata.xml

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	XML 1.0 document, Unicode text, UTF-16, little-endian text, with CRLF line terminators
Category:	dropped
Size (bytes):	8250
Entropy (8bit):	3.692640339936544
Encrypted:	false
SSDEEP:	192:R6l7wVeJKp6x6Y+p6wgmfTRJKzSZpDT89bOOsf2Sam:R6lXJs6x6YQ6wgmfTRJKzDONf2m
MD5:	3062B1DCD8DB6518CA99FD192A7BCA92
SHA1:	DC2527D8CED5B028D38B95B38262839DC6CD9A44
SHA-256:	A6251F9E6A7A29045BE1E06E9783E606710E2DA2D1E08892F8A32CCCA6F0C245
SHA-512:	0A5A7DE46A253E1E031EC5EE7F020C6CEEB082A7FC5A5AD16CEB1A33F9030F2AC600E35CB72CC036C24A422CC0BE47C55D9224F0D2430EF1D7CE3611EC1623A5
Malicious:	false
Preview:	..<.?.x.m.l. .v.e.r.s.i.o.n.=.".1...0.". .e.n.c.o.d.i.n.g.=.".U.T.F.-.1.6.".?.>.....<.W.E.R.R.e.p.o.r.t.M.e.t.a.d.a.t.a.>.......<.O.S.V.e.r.s.i.o.n.I.n.f.o.r.m.a.t.i.o.n.>.........<.W.i.n.d.o.w.s.N.T.V.e.r.s.i.o.n.>.1.0...0.<./.W.i.n.d.o.w.s.N.T.V.e.r.s.i.o.n.>.........<.B.u.i.l.d.>.1.9.0.4.5.<./.B.u.i.l.d.>.........<.P.r.o.d.u.c.t.>.(.0.x.3.0.).:. .W.i.n.d.o.w.s. .1.0. .P.r.o.<./.P.r.o.d.u.c.t.>.........<.E.d.i.t.i.o.n.>.P.r.o.f.e.s.s.i.o.n.a.l.<./.E.d.i.t.i.o.n.>.........<.B.u.i.l.d.S.t.r.i.n.g.>.1.9.0.4.1...2.0.0.6...a.m.d.6.4.f.r.e...v.b._.r.e.l.e.a.s.e...1.9.1.2.0.6.-.1.4.0.6.<./.B.u.i.l.d.S.t.r.i.n.g.>.........<.R.e.v.i.s.i.o.n.>.2.0.0.6.<./.R.e.v.i.s.i.o.n.>.........<.F.l.a.v.o.r.>.M.u.l.t.i.p.r.o.c.e.s.s.o.r. .F.r.e.e.<./.F.l.a.v.o.r.>.........<.A.r.c.h.i.t.e.c.t.u.r.e.>.X.6.4.<./.A.r.c.h.i.t.e.c.t.u.r.e.>.........<.L.C.I.D.>.2.0.5.7.<./.L.C.I.D.>.......<./.O.S.V.e.r.s.i.o.n.I.n.f.o.r.m.a.t.i.o.n.>.......<.P.r.o.c.e.s.s.I.n.f.o.r.m.a.t.i.o.n.>.........<.P.i.d.>.7.6.6.0.<./.P.i.

C:\ProgramData\Microsoft\Windows\WER\Temp\WER9BEA.tmp.xml

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	XML 1.0 document, ASCII text, with CRLF line terminators
Category:	dropped
Size (bytes):	4656
Entropy (8bit):	4.458768553229512
Encrypted:	false
SSDEEP:	48:cvIwWl8zsHJg77aI9yNWpW8VYjkiYm8M4JCdPHFwSo+q8/p83sGScSed:uIjfpI7I87VRLJyodsJ3ed
MD5:	F9A17A7D45F32171FD3AF14478C91F4B
SHA1:	3AA99C55EB00B466108616FC36771396C6604D20
SHA-256:	A750B479DAEF94E6F56149BC979C67E4CD7887245E4FB6689D228317148CC684
SHA-512:	45B036FDA7B1C6FAD318E3CD2F8D021CDDECD13B6136EE1A24E44A1FE68DA326540F6323A69FF11D7C0EA83955846357206AB7F43E9AAF288EA79E444ED4F564
Malicious:	false
Preview:	<?xml version="1.0" encoding="UTF-8" standalone="yes"?>..<req ver="2">.. <tlm>.. <src>.. <desc>.. <mach>.. <os>.. <arg nm="vermaj" val="10" />.. <arg nm="vermin" val="0" />.. <arg nm="verbld" val="19045" />.. <arg nm="vercsdbld" val="2006" />.. <arg nm="verqfe" val="2006" />.. <arg nm="csdbld" val="2006" />.. <arg nm="versp" val="0" />.. <arg nm="arch" val="9" />.. <arg nm="lcid" val="2057" />.. <arg nm="geoid" val="223" />.. <arg nm="sku" val="48" />.. <arg nm="domain" val="0" />.. <arg nm="prodsuite" val="256" />.. <arg nm="ntprodtype" val="1" />.. <arg nm="platid" val="2" />.. <arg nm="tmsi" val="518391" />.. <arg nm="osinsty" val="1" />.. <arg nm="iever" val="11.789.19041.0-11.0.1000" />.. <arg nm="portos" val="0" />.. <arg nm="ram" val="409

C:\Windows\appcompat\Programs\Amcache.hve

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	MS Windows registry file, NT/2000 or above
Category:	dropped
Size (bytes):	1835008
Entropy (8bit):	4.4662420991461556
Encrypted:	false
SSDEEP:	6144:oIXfpi67eLPU9skLmb0b4+WSPKaJG8nAgejZMMhA2gX4WABl0uNxdwBCswSbG:9XD94+WlLZMM6YFHT+G
MD5:	FFA41D60D0488BE4A8E2B67D83A9DD10
SHA1:	83B2AEC6B952AFB60A106CDE710F7CED905B9A66
SHA-256:	CA3550654BE9F447F62E92B0098C48BD391D8D84F63511A8713E54B19831E601
SHA-512:	13484BC79E41F18752A69F8CD3BD7E2AEA22BF2E73A3A7AF809FD8433A534C138E8A73D1543716A31A6CB6ADD76C68FE1DF4FAC36F527CA56B5667E253329721
Malicious:	false
Preview:	regf6...6....\.Z.................... ...........\.A.p.p.C.o.m.p.a.t.\.P.r.o.g.r.a.m.s.\.A.m.c.a.c.h.e...h.v.e....c...b...#.......c...b...#...........c...b...#......rmtm.....................................................................................................................................................................................................................................................................................................................................................J.3........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Static File Info

General

File type:	PE32 executable (DLL) (GUI) Intel 80386, for MS Windows
Entropy (8bit):	3.0983150597192086
TrID:	Win32 Dynamic Link Library (generic) (1002004/3) 99.60% Generic Win/DOS Executable (2004/3) 0.20% DOS Executable Generic (2002/1) 0.20% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	4wauxstb.dll
File size:	30'224 bytes
MD5:	22ae719e91b4bfcdf6122d3e2a0f272e
SHA1:	99df98dfef4b483889fa88162d20ee46340a5dbe
SHA256:	2529f6465570ac7f0b82613c694181cc10515ee045cfaa48dd7402e9b9d791bf
SHA512:	61028e30c28501f0c18c00ec8888cec3eade43b823a545608fc6ee9c6c2529723b5bede0cb2d4a016562a8ad4a59b1cf2b6ed00d1f745387ef9f15b05b63ce8f
SSDEEP:	192:tcQrn/AP13N7YWklwzW+5eWaJZByowJL/8Qpkqs1ISSxC+ebCf3ET/:aLr7elwzW+5eWkYJLu1gx0bC
TLSH:	08D23A731B5418F2ED864F39A5E2D5A79E31F6842FD4900F427544862E52FA3AF2D30B
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......e...!...!...!...!...3...C...".......%....... ....... ...Rich!...................PE..L...;..M...........!.........@.............

File Icon


Icon Hash:	7ae282899bbab082

Static PE Info

General

Entrypoint:	0x100016b1
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x10000000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, LINE_NUMS_STRIPPED, LOCAL_SYMS_STRIPPED, 32BIT_MACHINE, DLL
DLL Characteristics:
Time Stamp:	0x4DCCD63B [Fri May 13 06:56:59 2011 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:	4
OS Version Minor:	0
File Version Major:	4
File Version Minor:	0
Subsystem Version Major:	4
Subsystem Version Minor:	0
Import Hash:	6ebc726cea13165ecab2cbba28e816f9

Authenticode Signature

Signature Valid:	true
Signature Issuer:	CN=VeriSign Class 3 Code Signing 2009-2 CA, OU=Terms of use at https://www.verisign.com/rpa (c)09, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US
Signature Validation Error:	The operation completed successfully
Error Number:	0
Not Before, Not After	31/05/2010 01:00:00 07/05/2012 00:59:59
Subject Chain	CN=Mindspark Interactive Network, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Mindspark Interactive Network, L=White Plains, S=NewYork, C=US
Version:	3
Thumbprint MD5:	948EB00564165277EF51187B065D8FF1
Thumbprint SHA-1:	9FCB24A7661183FCB8AD11F8EDF81351886CFC18
Thumbprint SHA-256:	E1AFB266B11E757501CEAEF6C3D353664E386A011366D571D60E19107217A569
Serial:	41730EB0E6D92A476E16628A0DBEFB36

Entrypoint Preview

Instruction
push ebp
mov ebp, esp
cmp dword ptr [ebp+0Ch], 01h
push esi
mov esi, dword ptr [ebp+08h]
jne 00007FE6B4B3F93Dh
mov dword ptr [1000307Ch], esi
call 00007FE6B4B3F955h
push dword ptr [ebp+10h]
push dword ptr [ebp+0Ch]
push esi
call 00007FE6B4B3F4CCh
cmp dword ptr [ebp+0Ch], 00000000h
mov esi, eax
jne 00007FE6B4B3F937h
call 00007FE6B4B3F973h
mov eax, esi
pop esi
pop ebp
retn 000Ch
push 10003058h
call dword ptr [10002024h]
push 1000300Ch
push 10003000h
call 00007FE6B4B3F938h
pop ecx
pop ecx
ret
push esi
mov esi, dword ptr [esp+08h]
cmp esi, dword ptr [esp+0Ch]
jnc 00007FE6B4B3F93Fh
mov eax, dword ptr [esi]
test eax, eax
je 00007FE6B4B3F934h
call eax
add esi, 04h
jmp 00007FE6B4B3F91Fh
pop esi
ret
mov eax, dword ptr [10003078h]
test eax, eax
je 00007FE6B4B3F961h
mov ecx, dword ptr [10003074h]
push esi
lea esi, dword ptr [ecx-04h]
cmp esi, eax
jc 00007FE6B4B3F944h
mov ecx, dword ptr [esi]
test ecx, ecx
je 00007FE6B4B3F939h
call ecx
mov eax, dword ptr [10003078h]
sub esi, 04h
jmp 00007FE6B4B3F91Ch
push eax
call 00007FE6B4B3F99Eh
and dword ptr [10003078h], 00000000h
pop ecx
pop esi
push 10003058h
call dword ptr [10002028h]
ret
call dword ptr [1000202Ch]
xor eax, eax
ret
push dword ptr [esp+04h]
push 00000000h
call dword ptr [10002034h]

Rich Headers

Programming Language:

[C++] VS98 (6.0) SP6 build 8804
[EXP] VC++ 6.0 SP5 build 8804
[LNK] VC++ 6.0 SP5 build 8804

Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x2230	0x39	.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT	0x206c	0x28	.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x4000	0x378	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x6080	0x1590
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x5000	0xfc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x2050	0x1c	.rdata
IMAGE_DIRECTORY_ENTRY_COPYRIGHT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_TLS	0x0	0x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG	0x0	0x0
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IAT	0x2000	0x4c	.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x0	0x0
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x1000	0xa6e	0x1000	63e998aa9efe66d70007ee8548d27c82	False	0.4228515625	data	4.625876643362434	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata	0x2000	0x269	0x1000	6ccc470c62d83fa83028353a96253e8f	False	0.085693359375	data	1.0049624221597946	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data	0x3000	0x1cc	0x1000	f9d102e1f5b79d917493cfae84ba29f8	False	0.018310546875	Matlab v4 mat-file (little endian) r, numeric, rows 268439580, columns 268439706	0.10296095381598219	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.rsrc	0x4000	0x378	0x1000	c2c3a05e9091faf421f4a9bd86c6db4d	False	0.099609375	data	0.9234546394898066	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x5000	0x112	0x1000	8682280eb989a874cf744a26ed1cd33a	False	0.069091796875	data	0.6593276392044951	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x4060	0x314	data	English	United States	0.4517766497461929

Imports

DLL	Import
KERNEL32.dll	GetProcAddress, FreeLibrary, LoadLibraryExA, lstrcpyA, GetModuleFileNameA, LockResource, LoadResource, FindResourceA, lstrlenA, InitializeCriticalSection, DeleteCriticalSection, DebugBreak, HeapAlloc, GetProcessHeap, HeapReAlloc, HeapFree, LeaveCriticalSection, EnterCriticalSection

Possible Origin

Language of compilation system	Country where language is spoken	Map
English	United States

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Sep 27, 2024 10:49:02.244692087 CEST	53	58926	162.159.36.2	192.168.2.4
Sep 27, 2024 10:49:02.729120016 CEST	54266	53	192.168.2.4	1.1.1.1
Sep 27, 2024 10:49:02.736227989 CEST	53	54266	1.1.1.1	192.168.2.4

DNS Queries

Timestamp	Source IP	Dest IP	Trans ID	OP Code	Name	Type	Class	DNS over HTTPS
Sep 27, 2024 10:49:02.729120016 CEST	192.168.2.4	1.1.1.1	0x8147	Standard query (0)	198.187.3.20.in-addr.arpa	PTR (Pointer record)	IN (0x0001)	false

DNS Answers

Timestamp	Source IP	Dest IP	Trans ID	Reply Code	Name	CName	Address	Type	Class	DNS over HTTPS
Sep 27, 2024 10:49:02.736227989 CEST	1.1.1.1	192.168.2.4	0x8147	Name error (3)	198.187.3.20.in-addr.arpa	none	none	PTR (Pointer record)	IN (0x0001)	false

Target ID:	0
Start time:	04:48:29
Start date:	27/09/2024
Path:	C:\Windows\System32\loaddll32.exe
Wow64 process (32bit):	true
Commandline:	loaddll32.exe "C:\Users\user\Desktop\4wauxstb.dll"
Imagebase:	0xe20000
File size:	126'464 bytes
MD5 hash:	51E6071F9CBA48E79F10C84515AAE618
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	1
Start time:	04:48:29
Start date:	27/09/2024
Path:	C:\Windows\System32\conhost.exe
Wow64 process (32bit):	false
Commandline:	C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:	0x7ff7699e0000
File size:	862'208 bytes
MD5 hash:	0D698AF330FD17BEE3BF90011D49251D
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	2
Start time:	04:48:30
Start date:	27/09/2024
Path:	C:\Windows\SysWOW64\cmd.exe
Wow64 process (32bit):	true
Commandline:	cmd.exe /C rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1
Imagebase:	0x240000
File size:	236'544 bytes
MD5 hash:	D0FCE3AFA6AA1D58CE9FA336CC2B675B
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	3
Start time:	04:48:30
Start date:	27/09/2024
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe C:\Users\user\Desktop\4wauxstb.dll,#50
Imagebase:	0xd30000
File size:	61'440 bytes
MD5 hash:	889B99C52A60DD49227C5E485A016679
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	4
Start time:	04:48:30
Start date:	27/09/2024
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#1
Imagebase:	0xd30000
File size:	61'440 bytes
MD5 hash:	889B99C52A60DD49227C5E485A016679
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	7
Start time:	04:48:30
Start date:	27/09/2024
Path:	C:\Windows\SysWOW64\WerFault.exe
Wow64 process (32bit):	true
Commandline:	C:\Windows\SysWOW64\WerFault.exe -u -p 7440 -s 596
Imagebase:	0x660000
File size:	483'680 bytes
MD5 hash:	C31336C1EFC2CCB44B4326EA793040F2
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	8
Start time:	04:48:33
Start date:	27/09/2024
Path:	C:\Windows\SysWOW64\rundll32.exe
Wow64 process (32bit):	true
Commandline:	rundll32.exe "C:\Users\user\Desktop\4wauxstb.dll",#50
Imagebase:	0xd30000
File size:	61'440 bytes
MD5 hash:	889B99C52A60DD49227C5E485A016679
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Target ID:	10
Start time:	04:48:33
Start date:	27/09/2024
Path:	C:\Windows\SysWOW64\WerFault.exe
Wow64 process (32bit):	true
Commandline:	C:\Windows\SysWOW64\WerFault.exe -u -p 7660 -s 596
Imagebase:	0x660000
File size:	483'680 bytes
MD5 hash:	C31336C1EFC2CCB44B4326EA793040F2
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	high
Has exited:	true

Show Windows behavior

Execution Graph

Execution Coverage:	22%
Dynamic/Decrypted Code Coverage:	0%
Signature Coverage:	0%
Total number of Nodes:	56
Total number of Limit Nodes:	3

Callgraph

Executed
Not Executed
Opacity -> Relevance
Disassembly available

Executed Functions

Function 10001302 Relevance: 12.3, APIs: 5, Strings: 2, Instructions: 64
librarystringCOMMON

Download Yara Rule

Control-flow Graph

Executed
Not Executed

APIs

GetModuleFileNameA.KERNEL32(?,C:\Users\user\Desktop\4wres.dll,00000104,?,?,?,00000000), ref: 1000131E

Part of subcall function 1000180B: lstrlenA.KERNEL32(?,C:\Users\user\Desktop\4wres.dll,10001330,C:\Users\user\Desktop\4wres.dll,0000005C,?,?,?,00000000), ref: 10001811

lstrcpyA.KERNEL32(00000001,t8res.dll,?,?,?,00000000), ref: 10001341
LoadLibraryExA.KERNELBASE(C:\Users\user\Desktop\4wres.dll,00000000,00000002,?,?,?,00000000), ref: 10001352
GetModuleFileNameA.KERNEL32(?,?,00000104,?,?,?,00000000), ref: 10001369
LoadLibraryExA.KERNELBASE(C:\Users\user\Desktop\4wres.dll,00000000,00000002,?,?,?,00000000), ref: 10001397

Strings

C:\Users\user\Desktop\4wres.dll, xrefs: 1000130C, 10001316, 1000132A, 10001351, 10001393
t8res.dll, xrefs: 1000133B

Memory Dump Source

Source File: 00000003.00000002.1867760732.0000000010001000.00000020.00000001.01000000.00000003.sdmp, Offset: 10000000, based on PE: true

Associated: 00000003.00000002.1867744541.0000000010000000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867779827.0000000010002000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867799140.0000000010003000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867817612.0000000010004000.00000002.00000001.01000000.00000003.sdmpDownload File

Joe Sandbox IDA Plugin

Snapshot File: hcaresult_3_2_10000000_rundll32.jbxd

Similarity

API ID: FileLibraryLoadModuleName$lstrcpylstrlen
String ID: C:\Users\user\Desktop\4wres.dll$t8res.dll
API String ID: 1941188506-343812953
Opcode ID: 886cca80de3aa001887236f1dead0c4ab8e56d35035777e94b3186a18b19c43a
Instruction ID: 013a9606494761160500bb1e431852ed4ab7effee52b232657d235283668686a
Opcode Fuzzy Hash: 886cca80de3aa001887236f1dead0c4ab8e56d35035777e94b3186a18b19c43a
Instruction Fuzzy Hash: B211E53A209357BBF321D7609C86FE77BECEF453D1F014465F690D6486DAA0D5188760

Function 100011F4 Relevance: 6.0, APIs: 4, Instructions: 45
libraryCOMMON

Download Yara Rule

Control-flow Graph

Executed
Not Executed

APIs

GetModuleFileNameA.KERNEL32(?,000000F8), ref: 10001212

Part of subcall function 1000180B: lstrlenA.KERNEL32(?,C:\Users\user\Desktop\4wres.dll,10001330,C:\Users\user\Desktop\4wres.dll,0000005C,?,?,?,00000000), ref: 10001811

KiUserExceptionDispatcher.NTDLL(00000001,?), ref: 10001235
LoadLibraryExA.KERNEL32(?,00000000,00000008), ref: 10001245

Part of subcall function 100011D4: GetProcAddress.KERNEL32(00000000,00000032), ref: 100011E1

FreeLibrary.KERNEL32(00000000), ref: 1000125D

Memory Dump Source

Source File: 00000003.00000002.1867760732.0000000010001000.00000020.00000001.01000000.00000003.sdmp, Offset: 10000000, based on PE: true

Associated: 00000003.00000002.1867744541.0000000010000000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867779827.0000000010002000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867799140.0000000010003000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867817612.0000000010004000.00000002.00000001.01000000.00000003.sdmpDownload File

Joe Sandbox IDA Plugin

Snapshot File: hcaresult_3_2_10000000_rundll32.jbxd

Similarity

API ID: Library$AddressDispatcherExceptionFileFreeLoadModuleNameProcUserlstrlen
String ID:
API String ID: 1235663815-0
Opcode ID: 5ed39e6bcd4a0199278d4a0e4bfddc7a5ff6daf523227ca519120504941755cf
Instruction ID: e12ade2416b2b8f881d2cdf7cd6ee05ce41f15c0b2287eab36968b335e766cfd
Opcode Fuzzy Hash: 5ed39e6bcd4a0199278d4a0e4bfddc7a5ff6daf523227ca519120504941755cf
Instruction Fuzzy Hash: 3BF0AF76605625ABFA21D7B0AC88BDB37ACDF057D5F000021FA81E6089DA74CA948B90

Function 100011D4 Relevance: 1.5, APIs: 1, Instructions: 13
libraryloaderCOMMON

Download Yara Rule

Control-flow Graph

Executed
Not Executed

APIs

GetProcAddress.KERNEL32(00000000,00000032), ref: 100011E1

Memory Dump Source

Source File: 00000003.00000002.1867760732.0000000010001000.00000020.00000001.01000000.00000003.sdmp, Offset: 10000000, based on PE: true

Associated: 00000003.00000002.1867744541.0000000010000000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867779827.0000000010002000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867799140.0000000010003000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867817612.0000000010004000.00000002.00000001.01000000.00000003.sdmpDownload File

Joe Sandbox IDA Plugin

Snapshot File: hcaresult_3_2_10000000_rundll32.jbxd

Similarity

API ID: AddressProc
String ID:
API String ID: 190572456-0
Opcode ID: bdee9390e94cb4023d6a4f1cb6ca37b6a24ef073f27ede136e53c00b5eace5f3
Instruction ID: 3544e950ed3657740f22e8dd0b354c160d28ba24a04c1f2f4dbc2c01eb300f1a
Opcode Fuzzy Hash: bdee9390e94cb4023d6a4f1cb6ca37b6a24ef073f27ede136e53c00b5eace5f3
Instruction Fuzzy Hash: 48C00270355301BAFA559B608C857AA76D5AB80BC2F008868B645D50E9DBB58D82E511

Non-executed Functions

Function 10001447 Relevance: 4.5, APIs: 3, Instructions: 30
COMMON

Download Yara Rule

Control-flow Graph

Executed
Not Executed

APIs

Part of subcall function 10001302: GetModuleFileNameA.KERNEL32(?,C:\Users\user\Desktop\4wres.dll,00000104,?,?,?,00000000), ref: 1000131E
Part of subcall function 10001302: lstrcpyA.KERNEL32(00000001,t8res.dll,?,?,?,00000000), ref: 10001341
Part of subcall function 10001302: LoadLibraryExA.KERNELBASE(C:\Users\user\Desktop\4wres.dll,00000000,00000002,?,?,?,00000000), ref: 10001352
Part of subcall function 10001302: GetModuleFileNameA.KERNEL32(?,?,00000104,?,?,?,00000000), ref: 10001369
Part of subcall function 10001302: LoadLibraryExA.KERNELBASE(C:\Users\user\Desktop\4wres.dll,00000000,00000002,?,?,?,00000000), ref: 10001397

FindResourceA.KERNEL32(00000000,?,0000000A), ref: 1000147C
LoadResource.KERNEL32(00000000,00000000,?,10001411,00000001,?,?,?,1000118D,?), ref: 10001488
LockResource.KERNEL32(00000000,?,10001411,00000001,?,?,?,1000118D,?), ref: 10001493

Memory Dump Source

Source File: 00000003.00000002.1867760732.0000000010001000.00000020.00000001.01000000.00000003.sdmp, Offset: 10000000, based on PE: true

Associated: 00000003.00000002.1867744541.0000000010000000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867779827.0000000010002000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867799140.0000000010003000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867817612.0000000010004000.00000002.00000001.01000000.00000003.sdmpDownload File

Joe Sandbox IDA Plugin

Snapshot File: hcaresult_3_2_10000000_rundll32.jbxd

Similarity

API ID: LoadResource$FileLibraryModuleName$FindLocklstrcpy
String ID:
API String ID: 3696948136-0
Opcode ID: aed8b01c7a7f7b8bbe029595ede3559f220abab9367200c637a53f84fa2a4380
Instruction ID: a16a24c0636fcd78ea197a0ae47350010cc02528f2912d3680dff2fda699096b
Opcode Fuzzy Hash: aed8b01c7a7f7b8bbe029595ede3559f220abab9367200c637a53f84fa2a4380
Instruction Fuzzy Hash: A5F06D316983706AF7529B35ACC8BEB3BDCEB0A7D5F058005F944D10BDC7658885E2A2

Function 10001792 Relevance: 2.5, APIs: 2, Instructions: 12
memoryCOMMON

Download Yara Rule

Control-flow Graph

Executed
Not Executed

APIs

GetProcessHeap.KERNEL32(00000000,10001661,10001661,100019B8,0053E908,00000000,?,?,1000197B,00000000,10001657,10001661), ref: 100017AA
HeapReAlloc.KERNEL32(00000000,?,?,1000197B,00000000,10001657,10001661), ref: 100017B1

Part of subcall function 1000176D: GetProcessHeap.KERNEL32(00000000,?,100017DC,?,100014E9,00000001,?,?,10001431,?,?,?,?,1000118D,?), ref: 10001773
Part of subcall function 1000176D: HeapAlloc.KERNEL32(00000000,?,?,10001431,?,?,?,?,1000118D,?), ref: 1000177A

Memory Dump Source

Source File: 00000003.00000002.1867760732.0000000010001000.00000020.00000001.01000000.00000003.sdmp, Offset: 10000000, based on PE: true

Associated: 00000003.00000002.1867744541.0000000010000000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867779827.0000000010002000.00000002.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867799140.0000000010003000.00000004.00000001.01000000.00000003.sdmpDownload File
Associated: 00000003.00000002.1867817612.0000000010004000.00000002.00000001.01000000.00000003.sdmpDownload File

Joe Sandbox IDA Plugin

Snapshot File: hcaresult_3_2_10000000_rundll32.jbxd

Similarity

API ID: Heap$AllocProcess
String ID:
API String ID: 1617791916-0
Opcode ID: f813cbda3ade9a16470dc4232966c3f2c44bc0d5a5ce9b963a94ff6ba90a7f2c
Instruction ID: 528e6dc2ab4ea83a9780b1fa4b60de7286fae4f5501eb75e606c84414621deba
Opcode Fuzzy Hash: f813cbda3ade9a16470dc4232966c3f2c44bc0d5a5ce9b963a94ff6ba90a7f2c
Instruction Fuzzy Hash: EFD01231409301BBEE01AB90CD48B8D7BB5EF807C2F108448F14E44069C7715050EB13

Description:	Adversaries may execute their own malicious payloads by side-loading DLLs. Similar to DLL Search Order Hijacking , side-loading involves hijacking which DLL a program loads. But rather than just planting the DLL within the search order of a program then waiting for the victim application to be invoked, adversaries may directly side-load their payloads by planting then invoking a legitimate application that executes their payload(s).
Tactics:	Defense Evasion, Persistence, Privilege Escalation
Data Sources:	File: File Creation, File: File Modification, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may inject code into processes in order to evade process-based defenses as well as possibly elevate privileges. Process injection is a method of executing arbitrary code in the address space of a separate live process. Running code in the context of another process may allow access to the process's memory, system/network resources, and possibly elevated privileges. Execution via process injection may also evade detection from security products since the execution is masked under a legitimate process.
Tactics:	Defense Evasion, Privilege Escalation
Data Sources:	File: File Metadata, File: File Modification, Module: Module Load, Process: OS API Execution, Process: Process Access, Process: Process Metadata, Process: Process Modification
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may abuse rundll32.exe to proxy execution of malicious code. Using rundll32.exe, vice executing directly (i.e. Shared Modules ), may avoid triggering security tools that may not monitor execution of the rundll32.exe process because of allowlists or false positives from normal operations. Rundll32.exe is commonly associated with executing DLL payloads (ex: `rundll32.exe {DLLname, DLLfunction}` ).
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, File: File Metadata, Module: Module Load, Process: Process Creation
Platforms:	Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may employ various means to detect and avoid virtualization and analysis environments. This may include changing behaviors based on the results of checks for the presence of artifacts indicative of a virtual machine environment (VME) or sandbox. If the adversary detects a VME, they may alter their malware to disengage from the victim or conceal the core functions of the implant. They may also search for VME artifacts before dropping secondary or additional payloads. Adversaries may use the information learned from [Virtualization/Sandbox Evasion](https://attack.mitre.org/techniques/T1497) during automated discovery to shape follow-on behaviors.
Tactics:	Defense Evasion, Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may attempt to get a listing of security software, configurations, defensive tools, and sensors that are installed on a system or in a cloud environment. This may include things such as firewall rules and anti-virus. Adversaries may use the information from Security Software Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Firewall: Firewall Enumeration, Firewall: Firewall Metadata, Process: OS API Execution, Process: Process Creation
Platforms:	Azure AD, Google Workspace, IaaS, Linux, macOS, Office 365, SaaS, Windows
Url:	Open detailed description by Mitre

Description:	An adversary may attempt to get detailed information about the operating system and hardware, including version, patches, hotfixes, service packs, and architecture. Adversaries may use the information from System Information Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.
Tactics:	Discovery
Data Sources:	Command: Command Execution, Process: OS API Execution, Process: Process Creation
Platforms:	IaaS, Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Network, Windows
Url:	Open detailed description by Mitre

Description:	Adversaries may communicate using OSI application layer protocols to avoid detection/network filtering by blending in with existing traffic. Commands to the remote system, and often the results of those commands, will be embedded within the protocol traffic between the client and server.
Tactics:	Command and Control
Data Sources:	Network Traffic: Network Traffic Content, Network Traffic: Network Traffic Flow
Platforms:	Linux, macOS, Windows
Url:	Open detailed description by Mitre

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

Graph

Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report 4wauxstb.dll

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

AV Detection

Compliance

Networking

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

HIPS / PFW / Operating System Protection Evasion

Lowering of HIPS / PFW / Operating System Security Settings

Mitre Att&ck Matrix

Behavior Graph

Screenshots

Thumbnails

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Dropped Files

Unpacked PE Files

Domains

URLs

Domains and IPs

Contacted Domains

URLs from Memory and Binaries

World Map of Contacted IPs

General Information

Warnings

Simulations

Behavior and APIs

Joe Sandbox View / Context

IPs

Domains

ASNs

JA3 Fingerprints

Dropped Files

Created / dropped Files

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_5feb8dbdac39ae1a7256d1fc87637b91e032d0d8_7522e4b5_fe35a70d-95da-4053-a65d-1baee6f97000\Report.wer

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_rundll32.exe_c3a120e38c8a924168df415827e44f45cab79cd2_7522e4b5_f3e55f13-f12d-4fe0-900c-a383a4c7827a\Report.wer

C:\ProgramData\Microsoft\Windows\WER\Temp\WER8F94.tmp.dmp

C:\ProgramData\Microsoft\Windows\WER\Temp\WER910C.tmp.WERInternalMetadata.xml

C:\ProgramData\Microsoft\Windows\WER\Temp\WER916B.tmp.xml

C:\ProgramData\Microsoft\Windows\WER\Temp\WER9A52.tmp.dmp

C:\ProgramData\Microsoft\Windows\WER\Temp\WER9BCA.tmp.WERInternalMetadata.xml

C:\ProgramData\Microsoft\Windows\WER\Temp\WER9BEA.tmp.xml

C:\Windows\appcompat\Programs\Amcache.hve

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Rich Headers

Data Directories

Sections

Resources

Imports

Possible Origin

Network Behavior

Network Port Distribution

UDP Packets

DNS Queries

DNS Answers

Windows Analysis Report
4wauxstb.dll

Function 10001302 Relevance: 12.3, APIs: 5, Strings: 2, Instructions: 64
librarystringCOMMON

Function 100011F4 Relevance: 6.0, APIs: 4, Instructions: 45
libraryCOMMON

Function 100011D4 Relevance: 1.5, APIs: 1, Instructions: 13
libraryloaderCOMMON

Function 10001447 Relevance: 4.5, APIs: 3, Instructions: 30
COMMON

Function 10001792 Relevance: 2.5, APIs: 2, Instructions: 12
memoryCOMMON