Analysis
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max time kernel
120s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
27-06-2024 16:38
Static task
static1
Behavioral task
behavioral1
Sample
16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe
Resource
win7-20240611-en
General
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Target
16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe
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Size
300KB
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MD5
16b8315c6de1994bdcbc0faf574a162b
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SHA1
38c2018b835dcc8dd6e6c156f7619c8e0acc493d
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SHA256
018556978f8a8e862bb57db11a55e0be62b424db127b66cd77451fe970b30ee0
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SHA512
85f5c29486979cb3480fbfa9ab302a29463b060b12dc3aa95785037cfdc2b7f917492f8a1f3a7043d80ef09dca38b908b0f4423907f31148b8c554323fdca4f2
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SSDEEP
6144:63EriZWNoVdGEu3j1LdH+gYOFtDD02M14rqM:8EWdGn3jzH+ca5M
Malware Config
Extracted
darkcomet
User
97.81.46.17:1604
socksproxy1.serveftp.com:1604
DC_MUTEX-R0MQYLT
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InstallPath
MSDCSC\msdcsc.exe
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gencode
SkFtw2Fer8G2
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install
true
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offline_keylogger
true
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persistence
true
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reg_key
MicroUpdate
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" vbc.exe -
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
Processes:
attrib.exeattrib.exepid process 2368 attrib.exe 284 attrib.exe -
Executes dropped EXE 2 IoCs
Processes:
msconfig.exemsdcsc.exepid process 2612 msconfig.exe 2920 msdcsc.exe -
Loads dropped DLL 3 IoCs
Processes:
16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exevbc.exepid process 1572 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe 1572 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe 2476 vbc.exe -
Processes:
resource yara_rule behavioral1/memory/2476-24-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-26-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-27-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-21-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-20-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-28-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-29-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-30-0x0000000000400000-0x00000000004B9000-memory.dmp upx behavioral1/memory/2476-39-0x0000000000400000-0x00000000004B9000-memory.dmp upx -
Uses the VBS compiler for execution 1 TTPs
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Adds Run key to start application 2 TTPs 3 IoCs
Processes:
msconfig.exevbc.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe" msconfig.exe Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe" vbc.exe Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\18.exe = "C:\\Users\\Admin\\AppData\\RoamingMicrosoft\\System\\Services\\18.exe" msconfig.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
msconfig.exedescription pid process target process PID 2612 set thread context of 2476 2612 msconfig.exe vbc.exe -
Drops file in Windows directory 2 IoCs
Processes:
attrib.exeattrib.exedescription ioc process File opened for modification C:\Windows\Microsoft.NET\Framework\v2.0.50727 attrib.exe File opened for modification C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 12 IoCs
Processes:
msconfig.exepid process 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe 2612 msconfig.exe -
Suspicious use of AdjustPrivilegeToken 24 IoCs
Processes:
msconfig.exevbc.exedescription pid process Token: SeDebugPrivilege 2612 msconfig.exe Token: SeIncreaseQuotaPrivilege 2476 vbc.exe Token: SeSecurityPrivilege 2476 vbc.exe Token: SeTakeOwnershipPrivilege 2476 vbc.exe Token: SeLoadDriverPrivilege 2476 vbc.exe Token: SeSystemProfilePrivilege 2476 vbc.exe Token: SeSystemtimePrivilege 2476 vbc.exe Token: SeProfSingleProcessPrivilege 2476 vbc.exe Token: SeIncBasePriorityPrivilege 2476 vbc.exe Token: SeCreatePagefilePrivilege 2476 vbc.exe Token: SeBackupPrivilege 2476 vbc.exe Token: SeRestorePrivilege 2476 vbc.exe Token: SeShutdownPrivilege 2476 vbc.exe Token: SeDebugPrivilege 2476 vbc.exe Token: SeSystemEnvironmentPrivilege 2476 vbc.exe Token: SeChangeNotifyPrivilege 2476 vbc.exe Token: SeRemoteShutdownPrivilege 2476 vbc.exe Token: SeUndockPrivilege 2476 vbc.exe Token: SeManageVolumePrivilege 2476 vbc.exe Token: SeImpersonatePrivilege 2476 vbc.exe Token: SeCreateGlobalPrivilege 2476 vbc.exe Token: 33 2476 vbc.exe Token: 34 2476 vbc.exe Token: 35 2476 vbc.exe -
Suspicious use of WriteProcessMemory 32 IoCs
Processes:
16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exemsconfig.exevbc.execmd.execmd.exedescription pid process target process PID 1572 wrote to memory of 2612 1572 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe msconfig.exe PID 1572 wrote to memory of 2612 1572 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe msconfig.exe PID 1572 wrote to memory of 2612 1572 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe msconfig.exe PID 1572 wrote to memory of 2612 1572 16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe msconfig.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2612 wrote to memory of 2476 2612 msconfig.exe vbc.exe PID 2476 wrote to memory of 2468 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2468 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2468 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2468 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2464 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2464 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2464 2476 vbc.exe cmd.exe PID 2476 wrote to memory of 2464 2476 vbc.exe cmd.exe PID 2468 wrote to memory of 2368 2468 cmd.exe attrib.exe PID 2468 wrote to memory of 2368 2468 cmd.exe attrib.exe PID 2468 wrote to memory of 2368 2468 cmd.exe attrib.exe PID 2468 wrote to memory of 2368 2468 cmd.exe attrib.exe PID 2476 wrote to memory of 2920 2476 vbc.exe msdcsc.exe PID 2476 wrote to memory of 2920 2476 vbc.exe msdcsc.exe PID 2476 wrote to memory of 2920 2476 vbc.exe msdcsc.exe PID 2476 wrote to memory of 2920 2476 vbc.exe msdcsc.exe PID 2464 wrote to memory of 284 2464 cmd.exe attrib.exe PID 2464 wrote to memory of 284 2464 cmd.exe attrib.exe PID 2464 wrote to memory of 284 2464 cmd.exe attrib.exe PID 2464 wrote to memory of 284 2464 cmd.exe attrib.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
Processes:
attrib.exeattrib.exepid process 284 attrib.exe 2368 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\16b8315c6de1994bdcbc0faf574a162b_JaffaCakes118.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1572 -
C:\Users\Admin\AppData\Roaming\msconfig.exe"C:\Users\Admin\AppData\Roaming\msconfig.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe3⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2476 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h4⤵
- Suspicious use of WriteProcessMemory
PID:2468 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" +s +h5⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:2368 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h4⤵
- Suspicious use of WriteProcessMemory
PID:2464 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Windows\Microsoft.NET\Framework\v2.0.50727" +s +h5⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:284 -
C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"4⤵
- Executes dropped EXE
PID:2920
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Replay Monitor
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Downloads
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Filesize
1.1MB
MD534aa912defa18c2c129f1e09d75c1d7e
SHA19c3046324657505a30ecd9b1fdb46c05bde7d470
SHA2566df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386
SHA512d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98
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Filesize
300KB
MD516b8315c6de1994bdcbc0faf574a162b
SHA138c2018b835dcc8dd6e6c156f7619c8e0acc493d
SHA256018556978f8a8e862bb57db11a55e0be62b424db127b66cd77451fe970b30ee0
SHA51285f5c29486979cb3480fbfa9ab302a29463b060b12dc3aa95785037cfdc2b7f917492f8a1f3a7043d80ef09dca38b908b0f4423907f31148b8c554323fdca4f2