darkcomet | 57281d396b9308707868699a7fb3d32eacc664bb0fbc88767d9addbb4053398b

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
21-04-2024 03:44

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General

Target

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Size

760KB
MD5

fe59b3e207af9fe2969ce96f79358761
SHA1

dfa507906ddbd3497cf2584b79f4b7672303e710
SHA256

57281d396b9308707868699a7fb3d32eacc664bb0fbc88767d9addbb4053398b
SHA512

f7f3fed145adbebd502e46e75db040ee878b334019c5594ef135707b2b9a8b6fb252fe2a6d9856456a1285e740b56d5eaf7b2d5888f4a3a4a9525f6e30e8d27f
SSDEEP

12288:i3OpvNW4a76S/Ddon/m09bbYlIaaMcE2YGhq3vo1RnfAvIESJgoE26yc/RU:MOA4aWNn/m09fKIaaBEtWq3A1Ov8JgbK

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

41.68.138.235:1604

Mutex

DC_MUTEX-JZ6FMXB

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
r6i0G5J0NCmb
install
true
offline_keylogger
true
persistence
true
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

Processes:

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe

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"	fe59b3e207af9fe2969ce96f79358761_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

Processes:

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe

Deletes itself 1 IoCs

Processes:

notepad.exe

pid	Process
4428	notepad.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
3600	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeSecurityPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeBackupPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeRestorePrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeShutdownPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeDebugPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeUndockPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: 33	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: 34	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: 35	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: 36	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3600	msdcsc.exe
Token: SeSecurityPrivilege	3600	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3600	msdcsc.exe
Token: SeLoadDriverPrivilege	3600	msdcsc.exe
Token: SeSystemProfilePrivilege	3600	msdcsc.exe
Token: SeSystemtimePrivilege	3600	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3600	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3600	msdcsc.exe
Token: SeCreatePagefilePrivilege	3600	msdcsc.exe
Token: SeBackupPrivilege	3600	msdcsc.exe
Token: SeRestorePrivilege	3600	msdcsc.exe
Token: SeShutdownPrivilege	3600	msdcsc.exe
Token: SeDebugPrivilege	3600	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3600	msdcsc.exe
Token: SeChangeNotifyPrivilege	3600	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3600	msdcsc.exe
Token: SeUndockPrivilege	3600	msdcsc.exe
Token: SeManageVolumePrivilege	3600	msdcsc.exe
Token: SeImpersonatePrivilege	3600	msdcsc.exe
Token: SeCreateGlobalPrivilege	3600	msdcsc.exe
Token: 33	3600	msdcsc.exe
Token: 34	3600	msdcsc.exe
Token: 35	3600	msdcsc.exe
Token: 36	3600	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
3600	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe

description	pid	Process	procid_target
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 4428	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	86
PID 4952 wrote to memory of 3600	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	88
PID 4952 wrote to memory of 3600	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	88
PID 4952 wrote to memory of 3600	4952	fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe	88

C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fe59b3e207af9fe2969ce96f79358761_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:4952
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:4428
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3600

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
760KB

MD5
fe59b3e207af9fe2969ce96f79358761

SHA1
dfa507906ddbd3497cf2584b79f4b7672303e710

SHA256
57281d396b9308707868699a7fb3d32eacc664bb0fbc88767d9addbb4053398b

SHA512
f7f3fed145adbebd502e46e75db040ee878b334019c5594ef135707b2b9a8b6fb252fe2a6d9856456a1285e740b56d5eaf7b2d5888f4a3a4a9525f6e30e8d27f

Download Submit
memory/3600-63-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/3600-66-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3600-68-0x00000000021E0000-0x00000000021E1000-memory.dmp

Filesize
4KB

Download
memory/3600-69-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/4428-4-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4952-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/4952-64-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download