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Windows Analysis Report
oj5IqW8pvv.dll

Overview

General Information

Sample name:oj5IqW8pvv.dll
(renamed file extension from exe to dll, renamed because original name is a hash value)
Original sample name:f94f737329f4715f26eb067ef070c571.dll.exe
Analysis ID:1528052
MD5:f94f737329f4715f26eb067ef070c571
SHA1:8321cfbb3c2ffe4e3b0fcc82b19ccd438932f2ab
SHA256:d6df0ecb772c6ef6a6f10328993ecf8cf103d1586329be42e25484c24c8eb826
Tags:dllexeuser-abuse_ch
Infos:

Detection

Score:2
Range:0 - 100
Whitelisted:false
Confidence:60%

Signatures

Creates a process in suspended mode (likely to inject code)
PE file does not import any functions
PE file overlay found
Program does not show much activity (idle)
Sample execution stops while process was sleeping (likely an evasion)

Classification

  • System is w10x64
  • loaddll64.exe (PID: 5276 cmdline: loaddll64.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll" MD5: 763455F9DCB24DFEECC2B9D9F8D46D52)
    • conhost.exe (PID: 4300 cmdline: C:\Windows\system32\conhost.exe 0xffffffff -ForceV1 MD5: 0D698AF330FD17BEE3BF90011D49251D)
    • cmd.exe (PID: 2264 cmdline: cmd.exe /C rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1 MD5: 8A2122E8162DBEF04694B9C3E0B6CDEE)
      • rundll32.exe (PID: 5168 cmdline: rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1 MD5: EF3179D498793BF4234F708D3BE28633)
  • cleanup
No configs have been found
No yara matches
No Sigma rule has matched
No Suricata rule has matched

Click to jump to signature section

Show All Signature Results

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

Source: oj5IqW8pvv.dllStatic PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Source: oj5IqW8pvv.dllStatic PE information: No import functions for PE file found
Source: oj5IqW8pvv.dllStatic PE information: Data appended to the last section found
Source: classification engineClassification label: clean2.winDLL@6/0@0/0
Source: C:\Windows\System32\conhost.exeMutant created: \Sessions\1\BaseNamedObjects\Local\SM0:4300:120:WilError_03
Source: oj5IqW8pvv.dllStatic PE information: Section: .text IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
Source: C:\Windows\System32\loaddll64.exeKey opened: HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\Safer\CodeIdentifiersJump to behavior
Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1
Source: unknownProcess created: C:\Windows\System32\loaddll64.exe loaddll64.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll"
Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\conhost.exe C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1
Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1
Source: C:\Windows\System32\loaddll64.exeProcess created: C:\Windows\System32\cmd.exe cmd.exe /C rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1Jump to behavior
Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1Jump to behavior
Source: C:\Windows\System32\loaddll64.exeSection loaded: apphelp.dllJump to behavior
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: C:\Windows\System32\rundll32.exeAutomated click: OK
Source: oj5IqW8pvv.dllStatic PE information: Image base 0x180000000 > 0x60000000
Source: oj5IqW8pvv.dllStatic PE information: HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Source: oj5IqW8pvv.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IMPORT is in: .rdata
Source: oj5IqW8pvv.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_RESOURCE is in: .rsrc
Source: oj5IqW8pvv.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_BASERELOC is in: .reloc
Source: oj5IqW8pvv.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG is in: .rdata
Source: oj5IqW8pvv.dllStatic PE information: Data directory: IMAGE_DIRECTORY_ENTRY_IAT is in: .rdata
Source: C:\Windows\System32\rundll32.exeProcess information set: NOOPENFILEERRORBOXJump to behavior
Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Source: C:\Windows\System32\conhost.exeLast function: Thread delayed
Source: all processesThread injection, dropped files, key value created, disk infection and DNS query: no activity detected
Source: C:\Windows\System32\cmd.exeProcess created: C:\Windows\System32\rundll32.exe rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1Jump to behavior
ReconnaissanceResource DevelopmentInitial AccessExecutionPersistencePrivilege EscalationDefense EvasionCredential AccessDiscoveryLateral MovementCollectionCommand and ControlExfiltrationImpact
Gather Victim Identity InformationAcquire InfrastructureValid AccountsWindows Management Instrumentation1
DLL Side-Loading
11
Process Injection
1
Rundll32
OS Credential Dumping1
System Information Discovery
Remote ServicesData from Local SystemData ObfuscationExfiltration Over Other Network MediumAbuse Accessibility Features
CredentialsDomainsDefault AccountsScheduled Task/JobBoot or Logon Initialization Scripts1
DLL Side-Loading
11
Process Injection
LSASS MemoryApplication Window DiscoveryRemote Desktop ProtocolData from Removable MediaJunk DataExfiltration Over BluetoothNetwork Denial of Service
Email AddressesDNS ServerDomain AccountsAtLogon Script (Windows)Logon Script (Windows)1
DLL Side-Loading
Security Account ManagerQuery RegistrySMB/Windows Admin SharesData from Network Shared DriveSteganographyAutomated ExfiltrationData Encrypted for Impact
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
behaviorgraph top1 process2 2 Behavior Graph ID: 1528052 Sample: oj5IqW8pvv.exe Startdate: 07/10/2024 Architecture: WINDOWS Score: 2 6 loaddll64.exe 1 2->6         started        process3 8 cmd.exe 1 6->8         started        10 conhost.exe 6->10         started        process4 12 rundll32.exe 8->12         started       

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


windows-stand
SourceDetectionScannerLabelLink
oj5IqW8pvv.dll0%ReversingLabs
No Antivirus matches
No Antivirus matches
No Antivirus matches
No Antivirus matches
No contacted domains info
No contacted IP infos
Joe Sandbox version:41.0.0 Charoite
Analysis ID:1528052
Start date and time:2024-10-07 14:51:15 +02:00
Joe Sandbox product:CloudBasic
Overall analysis duration:0h 6m 1s
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:9
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:oj5IqW8pvv.dll
(renamed file extension from exe to dll, renamed because original name is a hash value)
Original Sample Name:f94f737329f4715f26eb067ef070c571.dll.exe
Detection:CLEAN
Classification:clean2.winDLL@6/0@0/0
EGA Information:Failed
HCA Information:
  • Successful, ratio: 100%
  • Number of executed functions: 0
  • Number of non-executed functions: 0
Cookbook Comments:
  • Override analysis time to 240s for rundll32
  • Exclude process from analysis (whitelisted): MpCmdRun.exe, dllhost.exe, WMIADAP.exe, SIHClient.exe, conhost.exe
  • Excluded domains from analysis (whitelisted): ocsp.digicert.com, slscr.update.microsoft.com, otelrules.azureedge.net, ctldl.windowsupdate.com, fe3cr.delivery.mp.microsoft.com
  • Not all processes where analyzed, report is missing behavior information
  • VT rate limit hit for: oj5IqW8pvv.dll
No simulations
No context
No context
No context
No context
No context
No created / dropped files found
File type:PE32+ executable (DLL) (GUI) x86-64, for MS Windows
Entropy (8bit):6.2266352877392475
TrID:
  • Win64 Dynamic Link Library (generic) (102004/3) 86.43%
  • Win64 Executable (generic) (12005/4) 10.17%
  • Generic Win/DOS Executable (2004/3) 1.70%
  • DOS Executable Generic (2002/1) 1.70%
  • Autodesk FLIC Image File (extensions: flc, fli, cel) (7/3) 0.01%
File name:oj5IqW8pvv.dll
File size:80'047 bytes
MD5:f94f737329f4715f26eb067ef070c571
SHA1:8321cfbb3c2ffe4e3b0fcc82b19ccd438932f2ab
SHA256:d6df0ecb772c6ef6a6f10328993ecf8cf103d1586329be42e25484c24c8eb826
SHA512:07f03ec4151766a70abdfb1d6e8c7441758f23beaf3f848c2ee2f065cd4d99c0b31e19f8c2fb44d777c0bfd9b8d4cca075a869e7df14894701767bcde96b44c0
SSDEEP:1536:pvYz2l4OhIwTWImLdP7vSge3Kmi7w3azHYnh2IB:lYz2mkTTWIdge3zi7w8YnhD
TLSH:9C7308AF577801B5F26BF179C682590FC6F1385ACAF1A30F07A54BDA2F532A2500E752
File Content Preview:MZ......................@...............................................!..L.!This program cannot be run in DOS mode....$.......s).A7H..7H..7H...?Z.2H..7H..LH......=H....,..H....-..H....-.2H....,."H....).6H....*.6H..../.6H..Rich7H.........................
Icon Hash:7ae282899bbab082
Entrypoint:0x18001e630
Entrypoint Section:.text
Digitally signed:false
Imagebase:0x180000000
Subsystem:windows gui
Image File Characteristics:EXECUTABLE_IMAGE, LARGE_ADDRESS_AWARE, DLL
DLL Characteristics:HIGH_ENTROPY_VA, DYNAMIC_BASE, NX_COMPAT
Time Stamp:0x66FEAE1A [Thu Oct 3 14:45:46 2024 UTC]
TLS Callbacks:
CLR (.Net) Version:
OS Version Major:6
OS Version Minor:0
File Version Major:6
File Version Minor:0
Subsystem Version Major:6
Subsystem Version Minor:0
Import Hash:
Programming Language:
  • [ C ] VS2012 build 50727
  • [C++] VS2012 build 50727
  • [EXP] VS2012 build 50727
  • [RES] VS2012 build 50727
  • [LNK] VS2012 build 50727
NameVirtual AddressVirtual Size Is in Section
IMAGE_DIRECTORY_ENTRY_EXPORT0x3dcc00x56.rdata
IMAGE_DIRECTORY_ENTRY_IMPORT0x3d17c0x3c.rdata
IMAGE_DIRECTORY_ENTRY_RESOURCE0x4f0000x288.rsrc
IMAGE_DIRECTORY_ENTRY_EXCEPTION0x4b0000x3180.pdata
IMAGE_DIRECTORY_ENTRY_SECURITY0x00x0
IMAGE_DIRECTORY_ENTRY_BASERELOC0x500000x668.reloc
IMAGE_DIRECTORY_ENTRY_DEBUG0x00x0
IMAGE_DIRECTORY_ENTRY_COPYRIGHT0x00x0
IMAGE_DIRECTORY_ENTRY_GLOBALPTR0x00x0
IMAGE_DIRECTORY_ENTRY_TLS0x00x0
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG0x385000x70.rdata
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT0x00x0
IMAGE_DIRECTORY_ENTRY_IAT0x300000x388.rdata
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT0x00x0
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR0x00x0
IMAGE_DIRECTORY_ENTRY_RESERVED0x00x0
NameVirtual AddressVirtual SizeRaw SizeMD5Xored PEZLIB ComplexityFile TypeEntropyCharacteristics
.text0x10000x2e97c0x2ea00bfd8092237560d5384a40ba72f89b45dFalse0.49885476380294347data6.241665753101773IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
.rdata0x300000xdd160xde00d41d8cd98f00b204e9800998ecf8427eFalse0empty0.0IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.data0x3e0000xcb880x2800d41d8cd98f00b204e9800998ecf8427eFalse0empty0.0IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
.pdata0x4b0000x31800x3200d41d8cd98f00b204e9800998ecf8427eFalse0empty0.0IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.rsrc0x4f0000x2880x400d41d8cd98f00b204e9800998ecf8427eFalse0empty0.0IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
.reloc0x500000x222a0x2400d41d8cd98f00b204e9800998ecf8427eFalse0empty0.0IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
No network behavior found

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Target ID:0
Start time:08:52:18
Start date:07/10/2024
Path:C:\Windows\System32\loaddll64.exe
Wow64 process (32bit):false
Commandline:loaddll64.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll"
Imagebase:0x7ff6a9370000
File size:165'888 bytes
MD5 hash:763455F9DCB24DFEECC2B9D9F8D46D52
Has elevated privileges:true
Has administrator privileges:true
Programmed in:C, C++ or other language
Reputation:high
Has exited:false

Target ID:1
Start time:08:52:18
Start date:07/10/2024
Path:C:\Windows\System32\conhost.exe
Wow64 process (32bit):false
Commandline:C:\Windows\system32\conhost.exe 0xffffffff -ForceV1
Imagebase:0x7ff6ee680000
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:false

Target ID:3
Start time:08:52:18
Start date:07/10/2024
Path:C:\Windows\System32\cmd.exe
Wow64 process (32bit):false
Commandline:cmd.exe /C rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1
Imagebase:0x7ff733390000
File size:289'792 bytes
MD5 hash:8A2122E8162DBEF04694B9C3E0B6CDEE
Has elevated privileges:true
Has administrator privileges:true
Programmed in:C, C++ or other language
Reputation:high
Has exited:false

Target ID:4
Start time:08:52:18
Start date:07/10/2024
Path:C:\Windows\System32\rundll32.exe
Wow64 process (32bit):false
Commandline:rundll32.exe "C:\Users\user\Desktop\oj5IqW8pvv.dll",#1
Imagebase:0x7ff663880000
File size:71'680 bytes
MD5 hash:EF3179D498793BF4234F708D3BE28633
Has elevated privileges:true
Has administrator privileges:true
Programmed in:C, C++ or other language
Reputation:high
Has exited:false

No disassembly