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Windows Analysis Report
Nrcs4WIwHy.exe

Overview

General Information

Sample name:	Nrcs4WIwHy.exe (renamed file extension from bin to exe, renamed because original name is a hash value)
Original sample name:	48783e39163bd603b758e257fd34793e88bf0ac29b41d3bafcc09f33e25e5495.bin
Analysis ID:	1545034
MD5:	1809e9937d0ad3729a76c3a1cd83be87
SHA1:	ab40f313ab8b53a7c22065c3ca8059149b5ef5c7
SHA256:	48783e39163bd603b758e257fd34793e88bf0ac29b41d3bafcc09f33e25e5495
Infos:

Detection

Score:	3
Range:	0 - 100
Whitelisted:	false
Confidence:	40%

Signatures

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

Allocates memory with a write watch (potentially for evading sandboxes)

Checks if the current process is being debugged

One or more processes crash

Queries the volume information (name, serial number etc) of a device

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

Uses 32bit PE files

Classification

Process Tree

System is w10x64

Nrcs4WIwHy.exe (PID: 6688 cmdline: "C:\Users\user\Desktop\Nrcs4WIwHy.exe" MD5: 1809E9937D0AD3729A76C3A1CD83BE87)

WerFault.exe (PID: 7028 cmdline: C:\Windows\SysWOW64\WerFault.exe -u -p 6688 -s 872 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

There are no malicious signatures, click here to show all signatures.

Source: Nrcs4WIwHy.exe

Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: Nrcs4WIwHy.exe

Static PE information: certificate valid

Source: Nrcs4WIwHy.exe

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source:	Binary string: mscorlib.pdb source: WERE300.tmp.dmp.3.dr
Source:	Binary string: mscorlib.ni.pdb source: WERE300.tmp.dmp.3.dr
Source:	Binary string: \??\C:\Users\user\Desktop\Nrcs4WIwHy.PDBt9 source: Nrcs4WIwHy.exe, 00000000.00000002.1888116935.00000000009B5000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: mscorlib.ni.pdbRSDS source: WERE300.tmp.dmp.3.dr

Source: Nrcs4WIwHy.exe	String found in binary or memory: http://cacerts.digicert.com/DigiCertAssuredIDRootCA.crt0E
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crt0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedG4RSA4096SHA256TimeStampingCA.crt0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://cacerts.digicert.com/DigiCertTrustedRootG4.crt0C
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://crl3.digicert.com/DigiCertAssuredIDRootCA.crl0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crl0S
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedG4RSA4096SHA256TimeStampingCA.crl0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://crl3.digicert.com/DigiCertTrustedRootG4.crl0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://crl4.digicert.com/DigiCertTrustedG4CodeSigningRSA4096SHA3842021CA1.crl0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://ocsp.digicert.com0
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://ocsp.digicert.com0A
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://ocsp.digicert.com0C
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://ocsp.digicert.com0X
Source: Amcache.hve.3.dr	String found in binary or memory: http://upx.sf.net
Source: Nrcs4WIwHy.exe	String found in binary or memory: http://www.digicert.com/CPS0

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6688 -s 872

Source: Nrcs4WIwHy.exe, 00000000.00000000.1690209011.00000000004C8000.00000002.00000001.01000000.00000003.sdmp	Binary or memory string: OriginalFilenameFreshservice.DiscoveryProbe.ScanService.exep( vs Nrcs4WIwHy.exe
Source: Nrcs4WIwHy.exe, 00000000.00000002.1888116935.000000000097E000.00000004.00000020.00020000.00000000.sdmp	Binary or memory string: OriginalFilenameclr.dllT vs Nrcs4WIwHy.exe
Source: Nrcs4WIwHy.exe	Binary or memory string: OriginalFilenameFreshservice.DiscoveryProbe.ScanService.exep( vs Nrcs4WIwHy.exe

Source: Nrcs4WIwHy.exe

Static PE information: EXECUTABLE_IMAGE, 32BIT_MACHINE

Source: classification engine

Classification label: clean3.winEXE@2/5@0/0

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Mutant created: NULL
Source: C:\Windows\SysWOW64\WerFault.exe	Mutant created: \Sessions\1\BaseNamedObjects\Local\WERReportingForProcess6688

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

File created: C:\ProgramData\Microsoft\Windows\WER\Temp\9d20faf9-79f8-4a75-8d01-f022d74ff61d

Jump to behavior

Source: Nrcs4WIwHy.exe

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

Source: Nrcs4WIwHy.exe

Static file information: TRID: Win32 Executable (generic) Net Framework (10011505/4) 50.01%

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

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

Jump to behavior

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

File read: C:\Users\user\Desktop\Nrcs4WIwHy.exe

Jump to behavior

Source: unknown	Process created: C:\Users\user\Desktop\Nrcs4WIwHy.exe "C:\Users\user\Desktop\Nrcs4WIwHy.exe"
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process created: C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\WerFault.exe -u -p 6688 -s 872

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Section loaded: mscoree.dll	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Section loaded: apphelp.dll	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Section loaded: kernel.appcore.dll	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Section loaded: version.dll	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Section loaded: vcruntime140_clr0400.dll	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Section loaded: ucrtbase_clr0400.dll	Jump to behavior

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

Key value queried: HKEY_LOCAL_MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{0A29FF9E-7F9C-4437-8B11-F424491E3931}\InprocServer32

Jump to behavior

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

File opened: C:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorrc.dll

Jump to behavior

Source: Nrcs4WIwHy.exe

Static PE information: certificate valid

Source: Nrcs4WIwHy.exe

Static PE information: data directory type: IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR

Source: Nrcs4WIwHy.exe

Static PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE

Source:	Binary string: mscorlib.pdb source: WERE300.tmp.dmp.3.dr
Source:	Binary string: mscorlib.ni.pdb source: WERE300.tmp.dmp.3.dr
Source:	Binary string: \??\C:\Users\user\Desktop\Nrcs4WIwHy.PDBt9 source: Nrcs4WIwHy.exe, 00000000.00000002.1888116935.00000000009B5000.00000004.00000020.00020000.00000000.sdmp
Source:	Binary string: mscorlib.ni.pdbRSDS source: WERE300.tmp.dmp.3.dr

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process information set: NOOPENFILEERRORBOX	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.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:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: BE0000 memory reserve \| memory write watch	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: 27C0000 memory reserve \| memory write watch	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: 47C0000 memory reserve \| memory write watch	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: 4DE0000 memory reserve \| memory write watch	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: 5DE0000 memory reserve \| memory write watch	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: 5F10000 memory reserve \| memory write watch	Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Memory allocated: 6F10000 memory reserve \| memory write watch	Jump to behavior

Source: Amcache.hve.3.dr	Binary or memory string: VMware
Source: Amcache.hve.3.dr	Binary or memory string: VMware Virtual USB Mouse
Source: Amcache.hve.3.dr	Binary or memory string: vmci.syshbin
Source: Amcache.hve.3.dr	Binary or memory string: VMware, Inc.
Source: Amcache.hve.3.dr	Binary or memory string: VMware20,1hbin@
Source: Amcache.hve.3.dr	Binary or memory string: c:\windows\system32\driverstore\filerepository\vmci.inf_amd64_68ed49469341f563
Source: Amcache.hve.3.dr	Binary or memory string: Ascsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.3.dr	Binary or memory string: .Z$c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.3.dr	Binary or memory string: :scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.3.dr	Binary or memory string: pci\ven_15ad&dev_0740&subsys_074015ad,pci\ven_15ad&dev_0740,root\vmwvmcihostdev
Source: Amcache.hve.3.dr	Binary or memory string: c:/windows/system32/drivers/vmci.sys
Source: Amcache.hve.3.dr	Binary or memory string: scsi/cdrom&ven_necvmwar&prod_vmware_sata_cd00/4&224f42ef&0&000000
Source: Amcache.hve.3.dr	Binary or memory string: vmci.sys
Source: Amcache.hve.3.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.3.dr	Binary or memory string: vmci.syshbin`
Source: Amcache.hve.3.dr	Binary or memory string: \driver\vmci,\driver\pci
Source: Amcache.hve.3.dr	Binary or memory string: scsi/disk&ven_vmware&prod_virtual_disk/4&1656f219&0&000000
Source: Amcache.hve.3.dr	Binary or memory string: VMware20,1
Source: Amcache.hve.3.dr	Binary or memory string: Microsoft Hyper-V Generation Counter
Source: Amcache.hve.3.dr	Binary or memory string: NECVMWar VMware SATA CD00
Source: Amcache.hve.3.dr	Binary or memory string: VMware Virtual disk SCSI Disk Device
Source: Amcache.hve.3.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.3.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.3.dr	Binary or memory string: Microsoft Hyper-V Virtualization Infrastructure Driver
Source: Amcache.hve.3.dr	Binary or memory string: VMware PCI VMCI Bus Device
Source: Amcache.hve.3.dr	Binary or memory string: VMware VMCI Bus Device
Source: Amcache.hve.3.dr	Binary or memory string: VMware Virtual RAM
Source: Amcache.hve.3.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.3.dr	Binary or memory string: vmci.inf_amd64_68ed49469341f563

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process queried: DebugPort			Jump to behavior
Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe	Process queried: DebugPort			Jump to behavior

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

Memory allocated: page read and write | page guard

Jump to behavior

Source: C:\Users\user\Desktop\Nrcs4WIwHy.exe

Queries volume information: C:\Users\user\Desktop\Nrcs4WIwHy.exe VolumeInformation

Jump to behavior

Source: Amcache.hve.3.dr	Binary or memory string: c:\programdata\microsoft\windows defender\platform\4.18.23080.2006-0\msmpeng.exe
Source: Amcache.hve.3.dr	Binary or memory string: msmpeng.exe
Source: Amcache.hve.3.dr	Binary or memory string: c:\program files\windows defender\msmpeng.exe
Source: Amcache.hve.3.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	1 Process Injection	2 Virtualization/Sandbox Evasion	OS Credential Dumping	21 Security Software Discovery	Remote Services	Data from Local System	Data Obfuscation	Exfiltration Over Other Network Medium	Abuse Accessibility Features
Credentials	Domains	Default Accounts	Scheduled Task/Job	Boot or Logon Initialization Scripts	1 DLL Side-Loading	1 Disable or Modify Tools	LSASS Memory	2 Virtualization/Sandbox Evasion	Remote Desktop Protocol	Data from Removable Media	Junk Data	Exfiltration Over Bluetooth	Network Denial of Service
Email Addresses	DNS Server	Domain Accounts	At	Logon Script (Windows)	Logon Script (Windows)	1 Process Injection	Security Account Manager	11 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

Screenshots

Thumbnails

This section contains all screenshots as thumbnails, including those not shown in the slideshow.

Antivirus, Machine Learning and Genetic Malware Detection

Initial Sample

Source	Detection	Scanner	Label	Link
Nrcs4WIwHy.exe	0%	ReversingLabs
Nrcs4WIwHy.exe	1%	Virustotal		Browse

Dropped Files

⊘No Antivirus matches

Unpacked PE Files

⊘No Antivirus matches

Domains

⊘No Antivirus matches

URLs

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

Domains and IPs

Contacted Domains

⊘No contacted domains info

URLs from Memory and Binaries

Name	Source	Malicious	Antivirus Detection	Reputation
http://upx.sf.net	Amcache.hve.3.dr	false	URL Reputation: safe URL Reputation: safe	unknown

World Map of Contacted IPs

⊘No contacted IP infos

General Information

Joe Sandbox version:	41.0.0 Charoite
Analysis ID:	1545034
Start date and time:	2024-10-30 02:02:36 +01:00
Joe Sandbox product:	CloudBasic
Overall analysis duration:	0h 3m 44s
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:	8
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:	EGA enabled AMSI enabled
Analysis Mode:	default
Analysis stop reason:	Timeout
Sample name:	Nrcs4WIwHy.exe (renamed file extension from bin to exe, renamed because original name is a hash value)
Original Sample Name:	48783e39163bd603b758e257fd34793e88bf0ac29b41d3bafcc09f33e25e5495.bin
Detection:	CLEAN
Classification:	clean3.winEXE@2/5@0/0

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, otelrules.azureedge.net, 7.4.8.4.4.3.1.4.0.0.0.0.0.0.0.0.0.0.0.a.0.0.1.f.1.1.1.0.1.0.a.2.ip6.arpa, 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

Simulations

Behavior and APIs

Time	Type	Description
21:03:48	API Interceptor	1x Sleep call for process: WerFault.exe modified

Joe Sandbox View / Context

IPs

⊘No context

Domains

⊘No context

ASNs

⊘No context

JA3 Fingerprints

⊘No context

Dropped Files

⊘No context

Created / dropped Files

C:\ProgramData\Microsoft\Windows\WER\ReportQueue\AppCrash_Nrcs4WIwHy.exe_2654c816c125cd4f69ac7d63fbe875f144e82f_b7985c6e_61dbd71f-3f49-453b-bb84-bf3d3e15f1c0\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):	0.8631490663485998
Encrypted:	false
SSDEEP:	96:hi+FCfwJoTUsVgqvzxTMbTdQXIDcQvc6QcEVcw3cE/f+BHUHZ0ownOgHkEwH3dEY:zMwJoTU4LT0BU/CaebzuiF8Z24IO8s
MD5:	D9639079B6A2DB8BEFEE3151DF50FE24
SHA1:	19C5CB25B6E5BDC12795AA89223C575BEADF7511
SHA-256:	D230EB38B336D8C457758F9638A4554E3A04901555D4F42EE1613C51496DC562
SHA-512:	D3A8D899F90FAB78DFC1285722FE5D6DE6385EA16D7B16FCD5739F0DC74A9BEC8B6FB457CF3DB6F056F34BDB22093E8B6C35B5A704A1D75A3C50426C60E5CFC8
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.=.1.3.3.7.4.7.2.3.8.0.9.1.7.1.5.4.7.3.....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.=.1.3.3.7.4.7.2.3.8.0.9.6.2.4.6.6.0.7.....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.=.6.1.d.b.d.7.1.f.-.3.f.4.9.-.4.5.3.b.-.b.b.8.4.-.b.f.3.d.3.e.1.5.f.1.c.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.=.a.6.f.d.f.c.f.4.-.c.9.3.3.-.4.d.e.7.-.8.f.0.2.-.e.8.9.8.b.a.2.9.1.7.6.c.....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.=.N.r.c.s.4.W.I.w.H.y...e.x.e.....O.r.i.g.i.n.a.l.F.i.l.e.n.a.m.e.=.F.r.e.s.h.s.e.r.v.i.c.e...D.i.s.c.o.v.e.r.y.P.r.o.b.e...S.c.a.n.S.e.r.v.i.c.e...e.x.e.....A.p.p.S.e.s.s.i.o.n.G.u.i.d.=.0.0.0.0.1.a.2.0.-.0.0.0.1.-.0.0.1.4.-.7.2.6.7.-.d.4.8.7.6.7.2.a.d.b.0.1.....T.a.r.g.e.t.A.p.p.I.d.=.W.:.0.0.0.6.b.9.6.2.7.a.5.d.6.f.3.6.9.4.5.6.b.3.a.d.0.a.b.2.8.5.e.8.a.7.c.2.0.0.0.0.0.0.0.0.!.0.0.0.0.a.b.4.0.

C:\ProgramData\Microsoft\Windows\WER\Temp\WERE300.tmp.dmp

Download File

Process:	C:\Windows\SysWOW64\WerFault.exe
File Type:	Mini DuMP crash report, 15 streams, Wed Oct 30 01:03:29 2024, 0x1205a4 type
Category:	dropped
Size (bytes):	153559
Entropy (8bit):	3.314257057876919
Encrypted:	false
SSDEEP:	1536:cylU8/kYpN4uE2aO4LTgipyBQ3tCDnB3zc:cylku4uEq4LTg1BPBjc
MD5:	70F1A39E1F9A24086A93EA7D449D2C0B
SHA1:	8E9147C87DA550CEF90D8C0E13A38F2382B18912
SHA-256:	1040B9A53210D0C18B16C956B5F74C4BFFB6592D189C21F79E9C314135872499
SHA-512:	9F1BDBB2F72F80F72D6AD7C088F10FC380FB013C50BA7A07AFDBC373741F49C3AA5443E52246427D06A07CD53E8A7F0E57E1A70DF456D9D2DE77AAF3939EE643
Malicious:	false
Reputation:	low
Preview:	MDMP..a..... ........!g....................................$...L............8..........`.......8...........T............"..?5..........p...........\...............................................................................eJ..............GenuineIntel............T....... .....!g.............................0..............,...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\WERE3EC.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):	8332
Entropy (8bit):	3.7022167295728803
Encrypted:	false
SSDEEP:	192:R6l7wVeJJ860mmay6Y9wSUGdPgmfa40lprw89blMsfn3m:R6lXJC6rm6Y6SUGdPgmfa40llffW
MD5:	269A3940263DCE3975F8C2D8BBB5A294
SHA1:	3A346923DA0369AFAF148BCB1C6B03BC67A1A468
SHA-256:	A05BE93B442A364C9375F3D1C7641BD0C4D99BE1D98CBAA9B05BB72C402AF846
SHA-512:	A3A949EFA6276AE221468113F337FD37F70B4B4A048239326DC3AE9F47BF6B29FB752B519BAFE15AFB05658D0CC9A5ED6425D94F53FF388D1B7D07B8B5CA4671
Malicious:	false
Reputation:	low
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.>.6.6.8.8.<./.P.i.

C:\ProgramData\Microsoft\Windows\WER\Temp\WERE41B.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):	4693
Entropy (8bit):	4.50869725460004
Encrypted:	false
SSDEEP:	48:cvIwWl8zsuJg77aI9cXWpW8VYlYm8M4J6jF9m+q8gFqRyRAEtoRP6d:uIjfkI76m7V1JtLqRyRBoRCd
MD5:	491AD69A66BC641F26083523290C0D79
SHA1:	7F83CD4FC0C5C13BE8565FF3E415E43C60861532
SHA-256:	4A963C3AA6DFEEF057277F762326ACCF1C0C6C87DD6DB59126E486440259DA36
SHA-512:	78B9A495C2C9351A97BEC09493298161F426FEE42B7B51454F4BC5EEC1C9B7431B7CCD773687E70EDD3143785B6D3364AC976B33E83DAA9B012F38C2AE9773C4
Malicious:	false
Reputation:	low
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="565446" />.. <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):	4.465804125903296
Encrypted:	false
SSDEEP:	6144:dIXfpi67eLPU9skLmb0b4KWSPKaJG8nAgejZMMhA2gX4WABl0uNxdwBCswSbB:OXD94KWlLZMM6YFHv+B
MD5:	2D92305D6ACB77AEEEB1528959CBC5EA
SHA1:	2D6173F5F8AA365DCD6131BEE591424EE4207758
SHA-256:	DFADD12B243EEE8A438554BE6184CA24838FF1226A877E9B4A84C2A47B696769
SHA-512:	F48CA86F8CF34AC3C24D65624C65D0F24130CEBA33BDFFFD80950B01444B73766B8DFE459929D534528898B811360B903C5D4D596B80C46792818E3E1A101775
Malicious:	false
Reputation:	low
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.p..g*..............................................................................................................................................................................................................................................................................................................................................'...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Static File Info

General

File type:	PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
Entropy (8bit):	6.620526125040161
TrID:	Win32 Executable (generic) Net Framework (10011505/4) 50.01% Win32 Executable (generic) a (10002005/4) 49.97% Generic Win/DOS Executable (2004/3) 0.01% DOS Executable Generic (2002/1) 0.01% Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.00%
File name:	Nrcs4WIwHy.exe
File size:	99'656 bytes
MD5:	1809e9937d0ad3729a76c3a1cd83be87
SHA1:	ab40f313ab8b53a7c22065c3ca8059149b5ef5c7
SHA256:	48783e39163bd603b758e257fd34793e88bf0ac29b41d3bafcc09f33e25e5495
SHA512:	fcbb6b6ddc285d523866662cd9bc9282c777f017d21419f1daeabe259d1523e39e107c52fab07e15d8ee65d13aea4a7b51cc4f507ba9ecb90eb4c3396a30f3b9
SSDEEP:	1536:QmPpQOgLJcvN59O54hR6P+SblKKkDjRuPoddHQ513ABLQDJqqqln7Hx9:QwyQ5o5MMr6RuPoddHQ513uYJ1qlnD
TLSH:	48A319487A44B94FCDAFCD7398601C305A70A567731AF38BA88716D98A4C68BCF4D1F2
File Content Preview:	MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......PE..L...}U.f..............0..L...........k... ........@.. ....................................`................................

File Icon


Icon Hash:	90cececece8e8eb0

Static PE Info

General

Entrypoint:	0x416b9e
Entrypoint Section:	.text
Digitally signed:	true
Imagebase:	0x400000
Subsystem:	windows gui
Image File Characteristics:	EXECUTABLE_IMAGE, 32BIT_MACHINE
DLL Characteristics:	HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT, NO_SEH, TERMINAL_SERVER_AWARE
Time Stamp:	0x66F5557D [Thu Sep 26 12:37:17 2024 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:	f34d5f2d4577ed6d9ceec516c1f5a744

Authenticode Signature

Signature Valid:	true
Signature Issuer:	CN=DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1, O="DigiCert, Inc.", C=US
Signature Validation Error:	The operation completed successfully
Error Number:	0
Not Before, Not After	30/05/2024 01:00:00 12/06/2027 00:59:59
Subject Chain	CN=Freshworks Inc, O=Freshworks Inc, L=San Mateo, S=California, C=US
Version:	3
Thumbprint MD5:	D7EBFD3D6EBEFA928E2C925F0E8B2EC1
Thumbprint SHA-1:	5743D81639C5455BD629750D864A6933AF36A7CC
Thumbprint SHA-256:	BB2A380E9D232DA83AD954B92A0F562447E55C1453CA2FE18DC0A84096B99FC7
Serial:	07FEFA39F6CAC9508677E69003E6603E

Entrypoint Preview

Instruction
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Data Directories

Name	Virtual Address	Virtual Size	Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_IMPORT	0x16b50	0x4b	.text
IMAGE_DIRECTORY_ENTRY_RESOURCE	0x18000	0x696	.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION	0x0	0x0
IMAGE_DIRECTORY_ENTRY_SECURITY	0x15800	0x2d48
IMAGE_DIRECTORY_ENTRY_BASERELOC	0x1a000	0xc	.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG	0x0	0x0
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	0x8	.text
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT	0x0	0x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR	0x2008	0x48	.text
IMAGE_DIRECTORY_ENTRY_RESERVED	0x0	0x0

Sections

Name	Virtual Address	Virtual Size	Raw Size	MD5	Xored PE	ZLIB Complexity	File Type	Entropy	Characteristics
.text	0x2000	0x14ba4	0x14c00	39757ee6f1b05cd8d4effb154d2b1b87	False	0.5336266942771084	data	6.451429969481355	IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rsrc	0x18000	0x696	0x800	cd3b626d117431c8d36fe8408d689aea	False	0.326171875	data	3.5923668247510334	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc	0x1a000	0xc	0x200	d3df1f6835c221af7889fbd80a1de3a1	False	0.044921875	data	0.10191042566270775	IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ

Resources

Name	RVA	Size	Type	Language	Country	ZLIB Complexity
RT_VERSION	0x180a0	0x40c	data			0.3532818532818533
RT_MANIFEST	0x184ac	0x1ea	XML 1.0 document, Unicode text, UTF-8 (with BOM) text, with CRLF line terminators			0.5489795918367347

Imports

DLL	Import
mscoree.dll	_CorExeMain

Network Behavior

UDP Packets

Timestamp	Source Port	Dest Port	Source IP	Dest IP
Oct 30, 2024 02:04:12.824928045 CET	53	49492	162.159.36.2	192.168.2.4
Oct 30, 2024 02:04:13.571191072 CET	53	59246	1.1.1.1	192.168.2.4

Statistics

CPU Usage

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Memory Usage

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High Level Behavior Distribution

Click to dive into process behavior distribution

Behavior

Click to jump to process

System Behavior

Analysis Process: Nrcs4WIwHy.exePID: 6688, Parent PID: 2580

General

Target ID:	0
Start time:	21:03:28
Start date:	29/10/2024
Path:	C:\Users\user\Desktop\Nrcs4WIwHy.exe
Wow64 process (32bit):	true
Commandline:	"C:\Users\user\Desktop\Nrcs4WIwHy.exe"
Imagebase:	0x4b0000
File size:	99'656 bytes
MD5 hash:	1809E9937D0AD3729A76C3A1CD83BE87
Has elevated privileges:	true
Has administrator privileges:	true
Programmed in:	C, C++ or other language
Reputation:	low
Has exited:	true

Show Windows behavior

Chronological Activities

Analysis Process: WerFault.exePID: 7028, Parent PID: 6688

General

Target ID:	3
Start time:	21:03:29
Start date:	29/10/2024
Path:	C:\Windows\SysWOW64\WerFault.exe
Wow64 process (32bit):	true
Commandline:	C:\Windows\SysWOW64\WerFault.exe -u -p 6688 -s 872
Imagebase:	0xf0000
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

Chronological Activities

Disassembly

⊘No disassembly

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 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 modify and/or disable security tools to avoid possible detection of their malware/tools and activities. This may take many forms, such as killing security software processes or services, modifying / deleting Registry keys or configuration files so that tools do not operate properly, or other methods to interfere with security tools scanning or reporting information. Adversaries may also disable updates to prevent the latest security patches from reaching tools on victim systems.
Tactics:	Defense Evasion
Data Sources:	Command: Command Execution, Driver: Driver Load, Process: Process Creation, Process: Process Termination, Sensor Health: Host Status, Service: Service Metadata, Windows Registry: Windows Registry Key Deletion, Windows Registry: Windows Registry Key Modification
Platforms:	Containers, IaaS, Linux, macOS, Network, 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

Behavior Section

Behavior Chronological

Disassembly

Uncategorized

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Loading Joe Sandbox Report ...

Warning!

Windows Analysis Report Nrcs4WIwHy.exe

Overview

General Information

Detection

Signatures

Classification

Process Tree

Malware Configuration

Yara Signatures

Sigma Signatures

Suricata Signatures

Joe Sandbox Signatures

Compliance

Networking

System Summary

Hooking and other Techniques for Hiding and Protection

Malware Analysis System Evasion

Anti Debugging

Language, Device and Operating System Detection

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_Nrcs4WIwHy.exe_2654c816c125cd4f69ac7d63fbe875f144e82f_b7985c6e_61dbd71f-3f49-453b-bb84-bf3d3e15f1c0\Report.wer

C:\ProgramData\Microsoft\Windows\WER\Temp\WERE300.tmp.dmp

C:\ProgramData\Microsoft\Windows\WER\Temp\WERE3EC.tmp.WERInternalMetadata.xml

C:\ProgramData\Microsoft\Windows\WER\Temp\WERE41B.tmp.xml

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

Static File Info

General

File Icon

Static PE Info

General

Authenticode Signature

Entrypoint Preview

Data Directories

Sections

Resources

Imports

Network Behavior

UDP Packets

Statistics

CPU Usage

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High Level Behavior Distribution

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Behavior

System Behavior

Analysis Process: Nrcs4WIwHy.exePID: 6688, Parent PID: 2580

General

Chronological Activities

Windows Analysis Report
Nrcs4WIwHy.exe