darkcomet | f61de838ff7a7bf2fd9be74124d2de1d66d32a2f2d1faad315516d3e5b8b9bf4

General

Target

4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Size

798KB
MD5

4a5ec9a006c5b7d0081c87ef2c2b72c9
SHA1

06f6da417bf491e03e95a77e6a10f147161579b6
SHA256

f61de838ff7a7bf2fd9be74124d2de1d66d32a2f2d1faad315516d3e5b8b9bf4
SHA512

11d3bd7a0b06245ae4071d0cac2ac8d428124202eaf97c010964f1ae67a0c7deb1d8ee08ce2ebef3a72046f8f0a69ecba55f371cfbae8f8dbab6f9273491461a
SSDEEP

24576:JUKoN0bUxgGa/pfBHDb+y1LS7D0QZh9u:+K1A6OY

Score

10^/10

darkcomet persistence rat trojan

Malware Config

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:

4a5ec9a006c5b7d0081c87ef2c2b72c9_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"	4a5ec9a006c5b7d0081c87ef2c2b72c9_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:

4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

764 msdcsc.exe

pid	process
764	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.exe4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\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 764 set thread context of 2460 764 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 764 set thread context of 2460	764	msdcsc.exe	iexplore.exe

Modifies registry class 1 IoCs

Processes:

4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

2544 PING.EXE

pid	process
2544	PING.EXE

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeSecurityPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeBackupPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeRestorePrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeShutdownPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeDebugPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeUndockPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: 33	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: 34	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: 35	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: 36	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	764	msdcsc.exe
Token: SeSecurityPrivilege	764	msdcsc.exe
Token: SeTakeOwnershipPrivilege	764	msdcsc.exe
Token: SeLoadDriverPrivilege	764	msdcsc.exe
Token: SeSystemProfilePrivilege	764	msdcsc.exe
Token: SeSystemtimePrivilege	764	msdcsc.exe
Token: SeProfSingleProcessPrivilege	764	msdcsc.exe
Token: SeIncBasePriorityPrivilege	764	msdcsc.exe
Token: SeCreatePagefilePrivilege	764	msdcsc.exe
Token: SeBackupPrivilege	764	msdcsc.exe
Token: SeRestorePrivilege	764	msdcsc.exe
Token: SeShutdownPrivilege	764	msdcsc.exe
Token: SeDebugPrivilege	764	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	764	msdcsc.exe
Token: SeChangeNotifyPrivilege	764	msdcsc.exe
Token: SeRemoteShutdownPrivilege	764	msdcsc.exe
Token: SeUndockPrivilege	764	msdcsc.exe
Token: SeManageVolumePrivilege	764	msdcsc.exe
Token: SeImpersonatePrivilege	764	msdcsc.exe
Token: SeCreateGlobalPrivilege	764	msdcsc.exe
Token: 33	764	msdcsc.exe
Token: 34	764	msdcsc.exe
Token: 35	764	msdcsc.exe
Token: 36	764	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2460	iexplore.exe
Token: SeSecurityPrivilege	2460	iexplore.exe
Token: SeTakeOwnershipPrivilege	2460	iexplore.exe
Token: SeLoadDriverPrivilege	2460	iexplore.exe
Token: SeSystemProfilePrivilege	2460	iexplore.exe
Token: SeSystemtimePrivilege	2460	iexplore.exe
Token: SeProfSingleProcessPrivilege	2460	iexplore.exe
Token: SeIncBasePriorityPrivilege	2460	iexplore.exe
Token: SeCreatePagefilePrivilege	2460	iexplore.exe
Token: SeBackupPrivilege	2460	iexplore.exe
Token: SeRestorePrivilege	2460	iexplore.exe
Token: SeShutdownPrivilege	2460	iexplore.exe
Token: SeDebugPrivilege	2460	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2460	iexplore.exe
Token: SeChangeNotifyPrivilege	2460	iexplore.exe
Token: SeRemoteShutdownPrivilege	2460	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

2460 iexplore.exe

pid	process
2460	iexplore.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.execmd.exemsdcsc.exe

description	pid	process	target process
PID 2100 wrote to memory of 2952	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe	cmd.exe
PID 2100 wrote to memory of 2952	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe	cmd.exe
PID 2100 wrote to memory of 2952	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe	cmd.exe
PID 2952 wrote to memory of 2544	2952	cmd.exe	PING.EXE
PID 2952 wrote to memory of 2544	2952	cmd.exe	PING.EXE
PID 2952 wrote to memory of 2544	2952	cmd.exe	PING.EXE
PID 2100 wrote to memory of 764	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe	msdcsc.exe
PID 2100 wrote to memory of 764	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe	msdcsc.exe
PID 2100 wrote to memory of 764	2100	4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe	msdcsc.exe
PID 764 wrote to memory of 2460	764	msdcsc.exe	iexplore.exe
PID 764 wrote to memory of 2460	764	msdcsc.exe	iexplore.exe
PID 764 wrote to memory of 2460	764	msdcsc.exe	iexplore.exe
PID 764 wrote to memory of 2460	764	msdcsc.exe	iexplore.exe
PID 764 wrote to memory of 2460	764	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4a5ec9a006c5b7d0081c87ef2c2b72c9_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:2100

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\4a5ec9a006c5b7d0081c87ef2c2b72c9_JaffaCakes118.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2952

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
3⤵
- Runs ping.exe
PID:2544

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:764

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:2460

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
798KB

MD5
4a5ec9a006c5b7d0081c87ef2c2b72c9

SHA1
06f6da417bf491e03e95a77e6a10f147161579b6

SHA256
f61de838ff7a7bf2fd9be74124d2de1d66d32a2f2d1faad315516d3e5b8b9bf4

SHA512
11d3bd7a0b06245ae4071d0cac2ac8d428124202eaf97c010964f1ae67a0c7deb1d8ee08ce2ebef3a72046f8f0a69ecba55f371cfbae8f8dbab6f9273491461a

Download Submit
memory/764-64-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/764-66-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2100-0-0x00000000007F0000-0x00000000007F1000-memory.dmp

Filesize
4KB

Download
memory/2100-63-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2460-65-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads