Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20240730-en -
resource tags
arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system -
submitted
01-08-2024 18:59
Behavioral task
behavioral1
Sample
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe
Resource
win7-20240705-en
General
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Target
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe
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Size
350KB
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MD5
819df246b27da35f467f59c80f167bc9
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SHA1
1e37271655b1e9499de89b2e836138151e1dd7f7
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SHA256
eacf46e22b979eceb17b7d63ade9fbaae70a7aa10346cf7bf0bf0cd374c53f1a
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SHA512
b04ef5971b941df40c3427a6a39774c9f0f993b6d2b4c858bd1ffcaeeb5570fd1491236af52ac437902de0e451a71230b0e3aed7f4a0d98e818e28f7e67a02a1
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SSDEEP
6144:4D7cY2fgssM7Wirg9KXylmRiL+QMeC/i6isqX7UovnONztByipwxZDh585LLTMdi:4l8E4w5huat7UovONzbXwZ58dMd0QZhw
Malware Config
Extracted
darkcomet
Guest16
iwinuwin.no-ip.biz:1604
DC_MUTEX-DB8SYQ3
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InstallPath
MSDCSC\msdcsc.exe
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gencode
A1EK50iyckHV
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install
true
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offline_keylogger
true
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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
Processes:
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\MSDCSC\\msdcsc.exe" 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2927035347-1736702767-189270196-1000\Control Panel\International\Geo\Nation 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe -
Executes dropped EXE 1 IoCs
Processes:
msdcsc.exepid process 1776 msdcsc.exe -
Processes:
resource yara_rule behavioral2/memory/4196-0-0x0000000000400000-0x00000000004EB000-memory.dmp upx C:\MSDCSC\msdcsc.exe upx behavioral2/memory/4196-15-0x0000000000400000-0x00000000004EB000-memory.dmp upx behavioral2/memory/1776-19-0x0000000000400000-0x00000000004EB000-memory.dmp upx behavioral2/memory/4984-17-0x0000000000400000-0x00000000004EB000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2927035347-1736702767-189270196-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe" 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
msdcsc.exedescription pid process target process PID 1776 set thread context of 4984 1776 msdcsc.exe iexplore.exe -
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:
notepad.exe819df246b27da35f467f59c80f167bc9_JaffaCakes118.exemsdcsc.exeiexplore.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language notepad.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language msdcsc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iexplore.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exemsdcsc.exeiexplore.exedescription pid process Token: SeIncreaseQuotaPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeSecurityPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeTakeOwnershipPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeLoadDriverPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeSystemProfilePrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeSystemtimePrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeProfSingleProcessPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeIncBasePriorityPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeCreatePagefilePrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeBackupPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeRestorePrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeShutdownPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeDebugPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeSystemEnvironmentPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeChangeNotifyPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeRemoteShutdownPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeUndockPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeManageVolumePrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeImpersonatePrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeCreateGlobalPrivilege 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: 33 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: 34 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: 35 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: 36 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe Token: SeIncreaseQuotaPrivilege 1776 msdcsc.exe Token: SeSecurityPrivilege 1776 msdcsc.exe Token: SeTakeOwnershipPrivilege 1776 msdcsc.exe Token: SeLoadDriverPrivilege 1776 msdcsc.exe Token: SeSystemProfilePrivilege 1776 msdcsc.exe Token: SeSystemtimePrivilege 1776 msdcsc.exe Token: SeProfSingleProcessPrivilege 1776 msdcsc.exe Token: SeIncBasePriorityPrivilege 1776 msdcsc.exe Token: SeCreatePagefilePrivilege 1776 msdcsc.exe Token: SeBackupPrivilege 1776 msdcsc.exe Token: SeRestorePrivilege 1776 msdcsc.exe Token: SeShutdownPrivilege 1776 msdcsc.exe Token: SeDebugPrivilege 1776 msdcsc.exe Token: SeSystemEnvironmentPrivilege 1776 msdcsc.exe Token: SeChangeNotifyPrivilege 1776 msdcsc.exe Token: SeRemoteShutdownPrivilege 1776 msdcsc.exe Token: SeUndockPrivilege 1776 msdcsc.exe Token: SeManageVolumePrivilege 1776 msdcsc.exe Token: SeImpersonatePrivilege 1776 msdcsc.exe Token: SeCreateGlobalPrivilege 1776 msdcsc.exe Token: 33 1776 msdcsc.exe Token: 34 1776 msdcsc.exe Token: 35 1776 msdcsc.exe Token: 36 1776 msdcsc.exe Token: SeIncreaseQuotaPrivilege 4984 iexplore.exe Token: SeSecurityPrivilege 4984 iexplore.exe Token: SeTakeOwnershipPrivilege 4984 iexplore.exe Token: SeLoadDriverPrivilege 4984 iexplore.exe Token: SeSystemProfilePrivilege 4984 iexplore.exe Token: SeSystemtimePrivilege 4984 iexplore.exe Token: SeProfSingleProcessPrivilege 4984 iexplore.exe Token: SeIncBasePriorityPrivilege 4984 iexplore.exe Token: SeCreatePagefilePrivilege 4984 iexplore.exe Token: SeBackupPrivilege 4984 iexplore.exe Token: SeRestorePrivilege 4984 iexplore.exe Token: SeShutdownPrivilege 4984 iexplore.exe Token: SeDebugPrivilege 4984 iexplore.exe Token: SeSystemEnvironmentPrivilege 4984 iexplore.exe Token: SeChangeNotifyPrivilege 4984 iexplore.exe Token: SeRemoteShutdownPrivilege 4984 iexplore.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
iexplore.exepid process 4984 iexplore.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
819df246b27da35f467f59c80f167bc9_JaffaCakes118.exemsdcsc.exeiexplore.exedescription pid process target process PID 4196 wrote to memory of 1776 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe msdcsc.exe PID 4196 wrote to memory of 1776 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe msdcsc.exe PID 4196 wrote to memory of 1776 4196 819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe msdcsc.exe PID 1776 wrote to memory of 4984 1776 msdcsc.exe iexplore.exe PID 1776 wrote to memory of 4984 1776 msdcsc.exe iexplore.exe PID 1776 wrote to memory of 4984 1776 msdcsc.exe iexplore.exe PID 1776 wrote to memory of 4984 1776 msdcsc.exe iexplore.exe PID 1776 wrote to memory of 4984 1776 msdcsc.exe iexplore.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe PID 4984 wrote to memory of 224 4984 iexplore.exe notepad.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\819df246b27da35f467f59c80f167bc9_JaffaCakes118.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4196 -
C:\MSDCSC\msdcsc.exe"C:\MSDCSC\msdcsc.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1776 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4984 -
C:\Windows\SysWOW64\notepad.exenotepad4⤵
- System Location Discovery: System Language Discovery
PID:224
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
350KB
MD5819df246b27da35f467f59c80f167bc9
SHA11e37271655b1e9499de89b2e836138151e1dd7f7
SHA256eacf46e22b979eceb17b7d63ade9fbaae70a7aa10346cf7bf0bf0cd374c53f1a
SHA512b04ef5971b941df40c3427a6a39774c9f0f993b6d2b4c858bd1ffcaeeb5570fd1491236af52ac437902de0e451a71230b0e3aed7f4a0d98e818e28f7e67a02a1