darkcomet | cab888f666b39e040043d22f85253e6789e1342ab4a6daf2c3963111c98cda3b

General

Target

102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Size

650KB
MD5

102d6b79c2ff2f8a1bd160b965490d9c
SHA1

8b6e1ec317f027d002ed2d0fdace097b454cb8b6
SHA256

cab888f666b39e040043d22f85253e6789e1342ab4a6daf2c3963111c98cda3b
SHA512

a1fce383a3498332ad7857588f83eec4a5936646f1a7dd18c424d6ae0a1429e1f4777e33e5bcdfe0443bbd572533e4d2f90cc575df9a25ebf565c46254a15c0d
SSDEEP

12288:Lk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+I:g0QRWoJEfg0oChGdJQbjPbNW5tYeP+Gl

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

88.171.241.28:1604

Mutex

DC_MUTEX-LC5Z5DE

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
NlJntxCBbSRS
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:

102d6b79c2ff2f8a1bd160b965490d9c_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"	102d6b79c2ff2f8a1bd160b965490d9c_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:

102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

4260 msdcsc.exe

pid	process
4260	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

iexplore.exe102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 4260 set thread context of 456 4260 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	pid	process	target process
PID 4260 set thread context of 456	4260	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1156 PING.EXE

pid	process
1156	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeSecurityPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeBackupPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeRestorePrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeShutdownPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeDebugPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeUndockPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: 33	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: 34	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: 35	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: 36	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4260	msdcsc.exe
Token: SeSecurityPrivilege	4260	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4260	msdcsc.exe
Token: SeLoadDriverPrivilege	4260	msdcsc.exe
Token: SeSystemProfilePrivilege	4260	msdcsc.exe
Token: SeSystemtimePrivilege	4260	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4260	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4260	msdcsc.exe
Token: SeCreatePagefilePrivilege	4260	msdcsc.exe
Token: SeBackupPrivilege	4260	msdcsc.exe
Token: SeRestorePrivilege	4260	msdcsc.exe
Token: SeShutdownPrivilege	4260	msdcsc.exe
Token: SeDebugPrivilege	4260	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4260	msdcsc.exe
Token: SeChangeNotifyPrivilege	4260	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4260	msdcsc.exe
Token: SeUndockPrivilege	4260	msdcsc.exe
Token: SeManageVolumePrivilege	4260	msdcsc.exe
Token: SeImpersonatePrivilege	4260	msdcsc.exe
Token: SeCreateGlobalPrivilege	4260	msdcsc.exe
Token: 33	4260	msdcsc.exe
Token: 34	4260	msdcsc.exe
Token: 35	4260	msdcsc.exe
Token: 36	4260	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	456	iexplore.exe
Token: SeSecurityPrivilege	456	iexplore.exe
Token: SeTakeOwnershipPrivilege	456	iexplore.exe
Token: SeLoadDriverPrivilege	456	iexplore.exe
Token: SeSystemProfilePrivilege	456	iexplore.exe
Token: SeSystemtimePrivilege	456	iexplore.exe
Token: SeProfSingleProcessPrivilege	456	iexplore.exe
Token: SeIncBasePriorityPrivilege	456	iexplore.exe
Token: SeCreatePagefilePrivilege	456	iexplore.exe
Token: SeBackupPrivilege	456	iexplore.exe
Token: SeRestorePrivilege	456	iexplore.exe
Token: SeShutdownPrivilege	456	iexplore.exe
Token: SeDebugPrivilege	456	iexplore.exe
Token: SeSystemEnvironmentPrivilege	456	iexplore.exe
Token: SeChangeNotifyPrivilege	456	iexplore.exe
Token: SeRemoteShutdownPrivilege	456	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

456 iexplore.exe

pid	process
456	iexplore.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1604 wrote to memory of 3020	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe	cmd.exe
PID 1604 wrote to memory of 3020	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe	cmd.exe
PID 1604 wrote to memory of 3020	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe	cmd.exe
PID 3020 wrote to memory of 1156	3020	cmd.exe	PING.EXE
PID 3020 wrote to memory of 1156	3020	cmd.exe	PING.EXE
PID 3020 wrote to memory of 1156	3020	cmd.exe	PING.EXE
PID 1604 wrote to memory of 4260	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe	msdcsc.exe
PID 1604 wrote to memory of 4260	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe	msdcsc.exe
PID 1604 wrote to memory of 4260	1604	102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe	msdcsc.exe
PID 4260 wrote to memory of 456	4260	msdcsc.exe	iexplore.exe
PID 4260 wrote to memory of 456	4260	msdcsc.exe	iexplore.exe
PID 4260 wrote to memory of 456	4260	msdcsc.exe	iexplore.exe
PID 4260 wrote to memory of 456	4260	msdcsc.exe	iexplore.exe
PID 4260 wrote to memory of 456	4260	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_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:1604

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\102d6b79c2ff2f8a1bd160b965490d9c_JaffaCakes118.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3020

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
3⤵
- Runs ping.exe
PID:1156

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 SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4260

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:456

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

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
650KB

MD5
102d6b79c2ff2f8a1bd160b965490d9c

SHA1
8b6e1ec317f027d002ed2d0fdace097b454cb8b6

SHA256
cab888f666b39e040043d22f85253e6789e1342ab4a6daf2c3963111c98cda3b

SHA512
a1fce383a3498332ad7857588f83eec4a5936646f1a7dd18c424d6ae0a1429e1f4777e33e5bcdfe0443bbd572533e4d2f90cc575df9a25ebf565c46254a15c0d

Download Submit
memory/456-63-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/1604-0-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/1604-60-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4260-62-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download
memory/4260-64-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads