darkcomet | 277b29da75be667b87ac5d2dd2ce45c8f1dc38a0ac463241de05ce57705d4e65

General

Target

3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Size

658KB
MD5

3a7500df5571bc8ae1108afb529ec14b
SHA1

454cbc5921a1336f1e8692779246130ce4857a86
SHA256

277b29da75be667b87ac5d2dd2ce45c8f1dc38a0ac463241de05ce57705d4e65
SHA512

0c61e651597ae4bbc4f2ac44f69f5591172d5af81f2c17c01631dea19f035b9a2dfd45af2975b61308900c4efe0a3c72bee695c9f4fc63d8b6485ff447a77b63
SSDEEP

12288:O9HMeUmcufrvA3kb445UEJ2jsWiD4EvFuu4cNgZhCiZKD/XdyFH:aiBIGkbxqEcjsWiDxguehC2SM

Score

10^/10

darkcomet guest16_min persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

192.168.111.135:1604

Mutex

DCMIN_MUTEX-4HS8P8W

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
zq8KQvyl6gUC
install
true
offline_keylogger
true
persistence
false
reg_key
RobloxHack

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:

3a7500df5571bc8ae1108afb529ec14b_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\\DCSCMIN\\IMDCSC.exe"	3a7500df5571bc8ae1108afb529ec14b_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:

3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

IMDCSC.exe

pid process

4220 IMDCSC.exe

pid	process
4220	IMDCSC.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RobloxHack = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	3a7500df5571bc8ae1108afb529ec14b_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:

3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exeIMDCSC.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeSecurityPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeBackupPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeRestorePrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeShutdownPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeDebugPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeUndockPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: 33	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: 34	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: 35	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: 36	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4220	IMDCSC.exe
Token: SeSecurityPrivilege	4220	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	4220	IMDCSC.exe
Token: SeLoadDriverPrivilege	4220	IMDCSC.exe
Token: SeSystemProfilePrivilege	4220	IMDCSC.exe
Token: SeSystemtimePrivilege	4220	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	4220	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	4220	IMDCSC.exe
Token: SeCreatePagefilePrivilege	4220	IMDCSC.exe
Token: SeBackupPrivilege	4220	IMDCSC.exe
Token: SeRestorePrivilege	4220	IMDCSC.exe
Token: SeShutdownPrivilege	4220	IMDCSC.exe
Token: SeDebugPrivilege	4220	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	4220	IMDCSC.exe
Token: SeChangeNotifyPrivilege	4220	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	4220	IMDCSC.exe
Token: SeUndockPrivilege	4220	IMDCSC.exe
Token: SeManageVolumePrivilege	4220	IMDCSC.exe
Token: SeImpersonatePrivilege	4220	IMDCSC.exe
Token: SeCreateGlobalPrivilege	4220	IMDCSC.exe
Token: 33	4220	IMDCSC.exe
Token: 34	4220	IMDCSC.exe
Token: 35	4220	IMDCSC.exe
Token: 36	4220	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

IMDCSC.exe

pid process

4220 IMDCSC.exe

pid	process
4220	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe

description	pid	process	target process
PID 1616 wrote to memory of 4220	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe	IMDCSC.exe
PID 1616 wrote to memory of 4220	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe	IMDCSC.exe
PID 1616 wrote to memory of 4220	1616	3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe	IMDCSC.exe

C:\Users\Admin\AppData\Local\Temp\3a7500df5571bc8ae1108afb529ec14b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3a7500df5571bc8ae1108afb529ec14b_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:1616
- C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4220

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
658KB

MD5
3a7500df5571bc8ae1108afb529ec14b

SHA1
454cbc5921a1336f1e8692779246130ce4857a86

SHA256
277b29da75be667b87ac5d2dd2ce45c8f1dc38a0ac463241de05ce57705d4e65

SHA512
0c61e651597ae4bbc4f2ac44f69f5591172d5af81f2c17c01631dea19f035b9a2dfd45af2975b61308900c4efe0a3c72bee695c9f4fc63d8b6485ff447a77b63

Download Submit
memory/1616-0-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/1616-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4220-12-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/4220-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4220-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads