Analysis
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max time kernel
150s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
20-10-2024 21:03
Static task
static1
Behavioral task
behavioral1
Sample
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe
Resource
win7-20241010-en
General
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Target
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe
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Size
2.0MB
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MD5
4ab17dc92cf4aa8230d6fac5931d9564
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SHA1
1a2c1029f0baffe08e92373292739d616607fea0
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SHA256
c2a7156cc2c645df95d6af8f2ee7ace159f3772149213f896bc82d9bc8c7a5d2
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SHA512
56e43b5f9ce4744ea8a4c4568e6234765b6737324122d1fd430db70c2bafd1a81f20d5db5cacb9b631eb4e3b2cc08c031c8b267f954b098791da48e91b4c2654
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SSDEEP
49152:IyDIihz4W7kvWDQA0wMe7TtCqNY0Wi7zkxhb:Ij84WAvW10wMe7TtjY01Ix
Malware Config
Extracted
darkcomet
Guest1
Germanytop.no-ip.org:1604
DC_MUTEX-GJGZ65W
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InstallPath
Local\Temp\wvrss.exe
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gencode
cadhLisrwVbS
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install
true
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offline_keylogger
true
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password
sexyadmin
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persistence
false
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reg_key
WindowsFirewall
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
Processes:
svchost.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\\Local\\Temp\\wvrss.exe" svchost.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exedescription ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe -
Executes dropped EXE 2 IoCs
Processes:
svchost.exewvrss.exepid Process 2028 svchost.exe 1292 wvrss.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Wine 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe -
Loads dropped DLL 2 IoCs
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exesvchost.exepid Process 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 2028 svchost.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
svchost.exe4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\WindowsFirewall = "C:\\Users\\Admin\\AppData\\Roaming\\Local\\Temp\\wvrss.exe" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdate.exe" 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exepid Process 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exedescription pid Process procid_target PID 2392 set thread context of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
svchost.exewvrss.exeDllHost.exe4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wvrss.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language DllHost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exepid Process 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
Processes:
svchost.exedescription pid Process Token: SeIncreaseQuotaPrivilege 2028 svchost.exe Token: SeSecurityPrivilege 2028 svchost.exe Token: SeTakeOwnershipPrivilege 2028 svchost.exe Token: SeLoadDriverPrivilege 2028 svchost.exe Token: SeSystemProfilePrivilege 2028 svchost.exe Token: SeSystemtimePrivilege 2028 svchost.exe Token: SeProfSingleProcessPrivilege 2028 svchost.exe Token: SeIncBasePriorityPrivilege 2028 svchost.exe Token: SeCreatePagefilePrivilege 2028 svchost.exe Token: SeBackupPrivilege 2028 svchost.exe Token: SeRestorePrivilege 2028 svchost.exe Token: SeShutdownPrivilege 2028 svchost.exe Token: SeDebugPrivilege 2028 svchost.exe Token: SeSystemEnvironmentPrivilege 2028 svchost.exe Token: SeChangeNotifyPrivilege 2028 svchost.exe Token: SeRemoteShutdownPrivilege 2028 svchost.exe Token: SeUndockPrivilege 2028 svchost.exe Token: SeManageVolumePrivilege 2028 svchost.exe Token: SeImpersonatePrivilege 2028 svchost.exe Token: SeCreateGlobalPrivilege 2028 svchost.exe Token: 33 2028 svchost.exe Token: 34 2028 svchost.exe Token: 35 2028 svchost.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
DllHost.exepid Process 2700 DllHost.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
DllHost.exepid Process 2700 DllHost.exe 2700 DllHost.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exesvchost.exedescription pid Process procid_target PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2392 wrote to memory of 2028 2392 4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe 30 PID 2028 wrote to memory of 1292 2028 svchost.exe 32 PID 2028 wrote to memory of 1292 2028 svchost.exe 32 PID 2028 wrote to memory of 1292 2028 svchost.exe 32 PID 2028 wrote to memory of 1292 2028 svchost.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\4ab17dc92cf4aa8230d6fac5931d9564_JaffaCakes118.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Users\Admin\AppData\Local\Temp\plugtemp\svchost.exeC:\Users\Admin\AppData\Local\Temp\\plugtemp\svchost.exe2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Roaming\Local\Temp\wvrss.exe"C:\Users\Admin\AppData\Roaming\Local\Temp\wvrss.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1292
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C:\Windows\SysWOW64\DllHost.exeC:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2700
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
254KB
MD5cbabb4f2d1fa4b26ec76e5b0496f98b9
SHA1dd66f7bfeb513983eb78b09b0512196c8b4cc84d
SHA256d6e3c68c4cf7320b071ddbaa4daaf5494d55f6f44727d10a2182c99688eabe9f
SHA512f35641ae523c6b6cb7c670871988ce069869db5d69ace198f953e8067c8ee935e64d72136e9f24b5679668e97942b30a80effede7ea08762d95d8200bad4ff93
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Filesize
1.1MB
MD534aa912defa18c2c129f1e09d75c1d7e
SHA19c3046324657505a30ecd9b1fdb46c05bde7d470
SHA2566df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386
SHA512d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98