darkcomet | 5d524827681428cf50279610dd4570780b3444fb7791747ae7b6a3b367b4de1a

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 14:20

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General

Target
af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Size 304KB
Sample240820-rnq9dswfre
SHA256 5d524827681428cf50279610dd4570780b3444fb7791747ae7b6a3b367b4de1a
MD5 af8fac736cab9a74d2c8c40b9888b851
SHA1 e682baefdd1896191966babe0a09bed9c2bda254
SHA512 d4ba97c1d37b4b0bb6e953130103a0ed145971d540a6dcd53b7e69333382091db1b4b0fc72263e4a7df26f4c9f190ac4632105792d4608194ae3615cc3a31a9e
SSDEEP 6144:NFfUzZNtXCwR+QZIKIwCuqMvw+wj1XPDROZcDrTAwidacCibUharzuoWkq:NFfUz1VIKIwRqMvFMXbtDnAhdNCibU44
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

mohamedmmk.zapto.org:82

Mutex

DC_MUTEX-L1KB0QQ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
LN0J2LLsllhH
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2660	msdcsc.exe
532	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 376 set thread context of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 2660 set thread context of 532	2660	msdcsc.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeSecurityPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeBackupPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeRestorePrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeShutdownPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeDebugPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeUndockPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: 33	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: 34	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: 35	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: 36	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	532	msdcsc.exe
Token: SeSecurityPrivilege	532	msdcsc.exe
Token: SeTakeOwnershipPrivilege	532	msdcsc.exe
Token: SeLoadDriverPrivilege	532	msdcsc.exe
Token: SeSystemProfilePrivilege	532	msdcsc.exe
Token: SeSystemtimePrivilege	532	msdcsc.exe
Token: SeProfSingleProcessPrivilege	532	msdcsc.exe
Token: SeIncBasePriorityPrivilege	532	msdcsc.exe
Token: SeCreatePagefilePrivilege	532	msdcsc.exe
Token: SeBackupPrivilege	532	msdcsc.exe
Token: SeRestorePrivilege	532	msdcsc.exe
Token: SeShutdownPrivilege	532	msdcsc.exe
Token: SeDebugPrivilege	532	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	532	msdcsc.exe
Token: SeChangeNotifyPrivilege	532	msdcsc.exe
Token: SeRemoteShutdownPrivilege	532	msdcsc.exe
Token: SeUndockPrivilege	532	msdcsc.exe
Token: SeManageVolumePrivilege	532	msdcsc.exe
Token: SeImpersonatePrivilege	532	msdcsc.exe
Token: SeCreateGlobalPrivilege	532	msdcsc.exe
Token: 33	532	msdcsc.exe
Token: 34	532	msdcsc.exe
Token: 35	532	msdcsc.exe
Token: 36	532	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
2660	msdcsc.exe
532	msdcsc.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 376 wrote to memory of 3896	376	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	87
PID 3896 wrote to memory of 2660	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	88
PID 3896 wrote to memory of 2660	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	88
PID 3896 wrote to memory of 2660	3896	af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe	88
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89
PID 2660 wrote to memory of 532	2660	msdcsc.exe	89

C:\Users\Admin\AppData\Local\Temp\af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:376
- C:\Users\Admin\AppData\Local\Temp\af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\af8fac736cab9a74d2c8c40b9888b851_JaffaCakes118.exe"
  2⤵
  - 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:3896
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2660
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:532

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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msdcsc.exe

Path C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Size 304KB
SHA256 5d524827681428cf50279610dd4570780b3444fb7791747ae7b6a3b367b4de1a
MD5 af8fac736cab9a74d2c8c40b9888b851
SHA1 e682baefdd1896191966babe0a09bed9c2bda254
SHA512 d4ba97c1d37b4b0bb6e953130103a0ed145971d540a6dcd53b7e69333382091db1b4b0fc72263e4a7df26f4c9f190ac4632105792d4608194ae3615cc3a31a9e
SSDEEP 6144:NFfUzZNtXCwR+QZIKIwCuqMvw+wj1XPDROZcDrTAwidacCibUharzuoWkq:NFfUz1VIKIwRqMvFMXbtDnAhdNCibU44
MD5 SHA1 SHA512 SSDEEP

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memory/376-6-0x0000000000400000-0x000000000055E000-memory.dmp

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memory/376-0-0x0000000000400000-0x000000000055E000-memory.dmp

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memory/532-39-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-45-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-54-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-53-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-52-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-29-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-51-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-33-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-34-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-35-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-50-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-49-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-38-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-48-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-47-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-42-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-40-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-43-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-44-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-41-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/532-46-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/2660-32-0x0000000000400000-0x000000000055E000-memory.dmp

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memory/3896-7-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/3896-3-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/3896-37-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/3896-36-0x00000000004F0000-0x00000000005B9000-memory.dmp

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memory/3896-5-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/3896-8-0x0000000000400000-0x00000000004E6000-memory.dmp

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memory/3896-9-0x0000000000400000-0x00000000004E6000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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