darkcomet | 9637eb28918049462e11ed2cd4120331ef2f69fbd0b2fa0161a3677302f3581a

General

Target

0431fcc335792f97fe4660c5ba857fa7.exe
Size

659KB
MD5

0431fcc335792f97fe4660c5ba857fa7
SHA1

cc1a5bec1653f1661b3e4185a488d81fb6c97939
SHA256

9637eb28918049462e11ed2cd4120331ef2f69fbd0b2fa0161a3677302f3581a
SHA512

a1118c79ec6a73fb95c07f097c633c6321c10dcac6f480585818eb030bb91a702b2e316573a704ec2dbb2082a87ef3598d7d5d76d8b94ca89a31bb00609c8d29
SSDEEP

12288:EX2JVHMRtDaSm3TJvVNvWV5YTsY7tHwbz/htfcoCoK632zb7G/Q0X:Css2Sm39NNv9wY7tHwbzfIoK6Mof

Score

10^/10

darkcomet guest16_min persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

C2

127.0.0.1:1604

Mutex

DCMIN_MUTEX-4P9QREJ

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
aapwobi7GLgZ
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

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:

0431fcc335792f97fe4660c5ba857fa7.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"	0431fcc335792f97fe4660c5ba857fa7.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:

0431fcc335792f97fe4660c5ba857fa7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	0431fcc335792f97fe4660c5ba857fa7.exe

Executes dropped EXE 1 IoCs

Processes:

IMDCSC.exe

pid process

2744 IMDCSC.exe

pid	process
2744	IMDCSC.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

0431fcc335792f97fe4660c5ba857fa7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	0431fcc335792f97fe4660c5ba857fa7.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:

0431fcc335792f97fe4660c5ba857fa7.exeIMDCSC.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeSecurityPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeTakeOwnershipPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeLoadDriverPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeSystemProfilePrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeSystemtimePrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeProfSingleProcessPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeIncBasePriorityPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeCreatePagefilePrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeBackupPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeRestorePrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeShutdownPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeDebugPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeSystemEnvironmentPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeChangeNotifyPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeRemoteShutdownPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeUndockPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeManageVolumePrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeImpersonatePrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeCreateGlobalPrivilege	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: 33	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: 34	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: 35	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: 36	640	0431fcc335792f97fe4660c5ba857fa7.exe
Token: SeIncreaseQuotaPrivilege	2744	IMDCSC.exe
Token: SeSecurityPrivilege	2744	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	2744	IMDCSC.exe
Token: SeLoadDriverPrivilege	2744	IMDCSC.exe
Token: SeSystemProfilePrivilege	2744	IMDCSC.exe
Token: SeSystemtimePrivilege	2744	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	2744	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	2744	IMDCSC.exe
Token: SeCreatePagefilePrivilege	2744	IMDCSC.exe
Token: SeBackupPrivilege	2744	IMDCSC.exe
Token: SeRestorePrivilege	2744	IMDCSC.exe
Token: SeShutdownPrivilege	2744	IMDCSC.exe
Token: SeDebugPrivilege	2744	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	2744	IMDCSC.exe
Token: SeChangeNotifyPrivilege	2744	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	2744	IMDCSC.exe
Token: SeUndockPrivilege	2744	IMDCSC.exe
Token: SeManageVolumePrivilege	2744	IMDCSC.exe
Token: SeImpersonatePrivilege	2744	IMDCSC.exe
Token: SeCreateGlobalPrivilege	2744	IMDCSC.exe
Token: 33	2744	IMDCSC.exe
Token: 34	2744	IMDCSC.exe
Token: 35	2744	IMDCSC.exe
Token: 36	2744	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

IMDCSC.exe

pid process

2744 IMDCSC.exe

pid	process
2744	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

0431fcc335792f97fe4660c5ba857fa7.exe

description	pid	process	target process
PID 640 wrote to memory of 2744	640	0431fcc335792f97fe4660c5ba857fa7.exe	IMDCSC.exe
PID 640 wrote to memory of 2744	640	0431fcc335792f97fe4660c5ba857fa7.exe	IMDCSC.exe
PID 640 wrote to memory of 2744	640	0431fcc335792f97fe4660c5ba857fa7.exe	IMDCSC.exe

C:\Users\Admin\AppData\Local\Temp\0431fcc335792f97fe4660c5ba857fa7.exe
"C:\Users\Admin\AppData\Local\Temp\0431fcc335792f97fe4660c5ba857fa7.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:640

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:2744

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

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Downloads

C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
Filesize
659KB

MD5
0431fcc335792f97fe4660c5ba857fa7

SHA1
cc1a5bec1653f1661b3e4185a488d81fb6c97939

SHA256
9637eb28918049462e11ed2cd4120331ef2f69fbd0b2fa0161a3677302f3581a

SHA512
a1118c79ec6a73fb95c07f097c633c6321c10dcac6f480585818eb030bb91a702b2e316573a704ec2dbb2082a87ef3598d7d5d76d8b94ca89a31bb00609c8d29

Download Submit
memory/640-0-0x0000000002850000-0x0000000002851000-memory.dmp

Filesize
4KB

Download
memory/640-12-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-17-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-14-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-15-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-13-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/2744-18-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-19-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-20-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-21-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-22-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-23-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-26-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2744-27-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads