Analysis
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max time kernel
150s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20240611-en -
resource tags
arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system -
submitted
12/06/2024, 19:49
Behavioral task
behavioral1
Sample
a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe
Resource
win7-20240508-en
windows7-x64
19 signatures
150 seconds
General
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Target
a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe
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Size
253KB
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MD5
a20f3a7d747f7b921b7f61cddd4e02e8
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SHA1
7a63906dc0e006b7c6ada08c2cab329ec37f6010
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SHA256
9d3877131ba099e0280613d5014d115ac85cd5200cc58818433379f7371d257e
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SHA512
06e051790c648a0287385997bfbe9d9006cd052f51154e688d0dcad299be9db0d83f5c90cf146a22c19a70704d55844d863b9b46e03352481734f2c30669c8f0
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SSDEEP
6144:5D7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZQqa:5l8E4w5huat7UovONzbXwUl
Malware Config
Extracted
Family
darkcomet
Botnet
Guest16
C2
richiflash.ddns.net:1604
richiflash.ddns.net:27015
Mutex
DC_MUTEX-92ZQAPJ
Attributes
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InstallPath
MSDCSC\msdcsc.exe
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gencode
WFcYVEvnPTaG
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install
true
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offline_keylogger
false
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persistence
false
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reg_key
MicroUpdate
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe -
Modifies firewall policy service 2 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" msdcsc.exe Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" msdcsc.exe -
Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" msdcsc.exe -
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" msdcsc.exe -
Disables Task Manager via registry modification
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Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 4692 attrib.exe 2620 attrib.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
pid Process 1772 msdcsc.exe -
resource yara_rule behavioral2/memory/716-0-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/files/0x0008000000023556-6.dat upx behavioral2/memory/716-63-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-66-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-67-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-68-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-69-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-70-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-71-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-72-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-73-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-74-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-75-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-76-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-77-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-78-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-79-0x0000000000400000-0x00000000004BA000-memory.dmp upx behavioral2/memory/1772-80-0x0000000000400000-0x00000000004BA000-memory.dmp upx -
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe" a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 1772 msdcsc.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeSecurityPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeLoadDriverPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeSystemProfilePrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeSystemtimePrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeBackupPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeRestorePrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeShutdownPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeDebugPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeUndockPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeManageVolumePrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeImpersonatePrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: 33 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: 34 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: 35 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: 36 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 1772 msdcsc.exe Token: SeSecurityPrivilege 1772 msdcsc.exe Token: SeTakeOwnershipPrivilege 1772 msdcsc.exe Token: SeLoadDriverPrivilege 1772 msdcsc.exe Token: SeSystemProfilePrivilege 1772 msdcsc.exe Token: SeSystemtimePrivilege 1772 msdcsc.exe Token: SeProfSingleProcessPrivilege 1772 msdcsc.exe Token: SeIncBasePriorityPrivilege 1772 msdcsc.exe Token: SeCreatePagefilePrivilege 1772 msdcsc.exe Token: SeBackupPrivilege 1772 msdcsc.exe Token: SeRestorePrivilege 1772 msdcsc.exe Token: SeShutdownPrivilege 1772 msdcsc.exe Token: SeDebugPrivilege 1772 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1772 msdcsc.exe Token: SeChangeNotifyPrivilege 1772 msdcsc.exe Token: SeRemoteShutdownPrivilege 1772 msdcsc.exe Token: SeUndockPrivilege 1772 msdcsc.exe Token: SeManageVolumePrivilege 1772 msdcsc.exe Token: SeImpersonatePrivilege 1772 msdcsc.exe Token: SeCreateGlobalPrivilege 1772 msdcsc.exe Token: 33 1772 msdcsc.exe Token: 34 1772 msdcsc.exe Token: 35 1772 msdcsc.exe Token: 36 1772 msdcsc.exe -
Suspicious use of WriteProcessMemory 42 IoCs
description pid Process procid_target PID 716 wrote to memory of 2064 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 82 PID 716 wrote to memory of 2064 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 82 PID 716 wrote to memory of 2064 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 82 PID 716 wrote to memory of 4888 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 83 PID 716 wrote to memory of 4888 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 83 PID 716 wrote to memory of 4888 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 83 PID 2064 wrote to memory of 4692 2064 cmd.exe 86 PID 2064 wrote to memory of 4692 2064 cmd.exe 86 PID 2064 wrote to memory of 4692 2064 cmd.exe 86 PID 4888 wrote to memory of 2620 4888 cmd.exe 87 PID 4888 wrote to memory of 2620 4888 cmd.exe 87 PID 4888 wrote to memory of 2620 4888 cmd.exe 87 PID 716 wrote to memory of 1772 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 88 PID 716 wrote to memory of 1772 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 88 PID 716 wrote to memory of 1772 716 a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe 88 PID 1772 wrote to memory of 4556 1772 msdcsc.exe 90 PID 1772 wrote to memory of 4556 1772 msdcsc.exe 90 PID 1772 wrote to memory of 4556 1772 msdcsc.exe 90 PID 1772 wrote to memory of 2476 1772 msdcsc.exe 91 PID 1772 wrote to memory of 2476 1772 msdcsc.exe 91 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 PID 1772 wrote to memory of 3312 1772 msdcsc.exe 92 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion msdcsc.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern msdcsc.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" msdcsc.exe -
Views/modifies file attributes 1 TTPs 2 IoCs
pid Process 4692 attrib.exe 2620 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:716 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe" +s +h2⤵
- Suspicious use of WriteProcessMemory
PID:2064 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp\a20f3a7d747f7b921b7f61cddd4e02e8_JaffaCakes118.exe" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4692
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h2⤵
- Suspicious use of WriteProcessMemory
PID:4888 -
C:\Windows\SysWOW64\attrib.exeattrib "C:\Users\Admin\AppData\Local\Temp" +s +h3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2620
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C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1772 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵PID:4556
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"3⤵PID:2476
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C:\Windows\SysWOW64\notepad.exenotepad3⤵PID:3312
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
253KB
MD5a20f3a7d747f7b921b7f61cddd4e02e8
SHA17a63906dc0e006b7c6ada08c2cab329ec37f6010
SHA2569d3877131ba099e0280613d5014d115ac85cd5200cc58818433379f7371d257e
SHA51206e051790c648a0287385997bfbe9d9006cd052f51154e688d0dcad299be9db0d83f5c90cf146a22c19a70704d55844d863b9b46e03352481734f2c30669c8f0