darkcomet | 116e7f9544b870e5712a44d3d41e580294b378f2a299f334fe67c975c7389fe0

General

Target

135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Size

236KB
MD5

135c8f4f18a0026779cb7b4e52fc42e1
SHA1

9e92a8e586d02ce266e5b93175efe80cfba6b4f3
SHA256

116e7f9544b870e5712a44d3d41e580294b378f2a299f334fe67c975c7389fe0
SHA512

c55d6aaece75bcc6df36b0f97781dc4b6966a65541b8ea75bed2fec0842cb9325e197d8434fbbb09d1bfdc7f4b94ddc33f0cec53e6a12400087165e409247f58
SSDEEP

6144:SmDUj24gqU85IzrFA9NfmDuLpNr5NhWudrWDhL:SqUj2LkizrzDujVNhWucD

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

127.0.0.1:1604

Mutex

DC_MUTEX-Y2PF8PW

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
d5FWh5eASSSU
install
true
offline_keylogger
true
password
irckix
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

Processes:

135c8f4f18a0026779cb7b4e52fc42e1_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"	135c8f4f18a0026779cb7b4e52fc42e1_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:

135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2040 msdcsc.exe

pid	process
2040	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeSecurityPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeBackupPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeRestorePrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeShutdownPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeDebugPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeUndockPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: 33	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: 34	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: 35	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: 36	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2040	msdcsc.exe
Token: SeSecurityPrivilege	2040	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2040	msdcsc.exe
Token: SeLoadDriverPrivilege	2040	msdcsc.exe
Token: SeSystemProfilePrivilege	2040	msdcsc.exe
Token: SeSystemtimePrivilege	2040	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2040	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2040	msdcsc.exe
Token: SeCreatePagefilePrivilege	2040	msdcsc.exe
Token: SeBackupPrivilege	2040	msdcsc.exe
Token: SeRestorePrivilege	2040	msdcsc.exe
Token: SeShutdownPrivilege	2040	msdcsc.exe
Token: SeDebugPrivilege	2040	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2040	msdcsc.exe
Token: SeChangeNotifyPrivilege	2040	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2040	msdcsc.exe
Token: SeUndockPrivilege	2040	msdcsc.exe
Token: SeManageVolumePrivilege	2040	msdcsc.exe
Token: SeImpersonatePrivilege	2040	msdcsc.exe
Token: SeCreateGlobalPrivilege	2040	msdcsc.exe
Token: 33	2040	msdcsc.exe
Token: 34	2040	msdcsc.exe
Token: 35	2040	msdcsc.exe
Token: 36	2040	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2040 msdcsc.exe

pid	process
2040	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe

description	pid	process	target process
PID 4664 wrote to memory of 2040	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe	msdcsc.exe
PID 4664 wrote to memory of 2040	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe	msdcsc.exe
PID 4664 wrote to memory of 2040	4664	135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\135c8f4f18a0026779cb7b4e52fc42e1_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4664

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2040

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4212,i,14486271492189381216,15799931579469722648,262144 --variations-seed-version --mojo-platform-channel-handle=4356 /prefetch:8
1⤵
PID:2436

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
236KB

MD5
135c8f4f18a0026779cb7b4e52fc42e1

SHA1
9e92a8e586d02ce266e5b93175efe80cfba6b4f3

SHA256
116e7f9544b870e5712a44d3d41e580294b378f2a299f334fe67c975c7389fe0

SHA512
c55d6aaece75bcc6df36b0f97781dc4b6966a65541b8ea75bed2fec0842cb9325e197d8434fbbb09d1bfdc7f4b94ddc33f0cec53e6a12400087165e409247f58

Download Submit
memory/2040-18-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-16-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-17-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/2040-20-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-21-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-22-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-23-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-24-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-25-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2040-26-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4664-1-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/4664-15-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4664-0-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads