darkcomet | 6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

General

Target

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Size

680KB
MD5

ed5d29a9ba18920e91a5947fa81e10ee
SHA1

2900a0904d02f022c270f2996294bd3687b47135
SHA256

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8
SHA512

437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

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

T1004

Modify Registry

T1112

Processes:

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Windupdt\\winupdate.exe"	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe

Executes dropped EXE 1 IoCs

Processes:

winupdate.exe

pid process

1600 winupdate.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1640 cmd.exe
Loads dropped DLL 4 IoCs

Processes:

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exewinupdate.exe

pid process

1096 6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
1600 winupdate.exe
1600 winupdate.exe
1600 winupdate.exe

pid	process
1600	winupdate.exe

pid	process
1640	cmd.exe

pid	process
1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
1600	winupdate.exe
1600	winupdate.exe
1600	winupdate.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exewinupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Windupdt\\winupdate.exe"	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Windupdt\\winupdate.exe"	winupdate.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

396 PING.EXE

pid	process
396	PING.EXE

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exewinupdate.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeSecurityPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeTakeOwnershipPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeLoadDriverPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeSystemProfilePrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeSystemtimePrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeProfSingleProcessPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeIncBasePriorityPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeCreatePagefilePrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeBackupPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeRestorePrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeShutdownPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeDebugPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeSystemEnvironmentPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeChangeNotifyPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeRemoteShutdownPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeUndockPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeManageVolumePrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeImpersonatePrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeCreateGlobalPrivilege	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: 33	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: 34	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: 35	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
Token: SeIncreaseQuotaPrivilege	1600	winupdate.exe
Token: SeSecurityPrivilege	1600	winupdate.exe
Token: SeTakeOwnershipPrivilege	1600	winupdate.exe
Token: SeLoadDriverPrivilege	1600	winupdate.exe
Token: SeSystemProfilePrivilege	1600	winupdate.exe
Token: SeSystemtimePrivilege	1600	winupdate.exe
Token: SeProfSingleProcessPrivilege	1600	winupdate.exe
Token: SeIncBasePriorityPrivilege	1600	winupdate.exe
Token: SeCreatePagefilePrivilege	1600	winupdate.exe
Token: SeBackupPrivilege	1600	winupdate.exe
Token: SeRestorePrivilege	1600	winupdate.exe
Token: SeShutdownPrivilege	1600	winupdate.exe
Token: SeDebugPrivilege	1600	winupdate.exe
Token: SeSystemEnvironmentPrivilege	1600	winupdate.exe
Token: SeChangeNotifyPrivilege	1600	winupdate.exe
Token: SeRemoteShutdownPrivilege	1600	winupdate.exe
Token: SeUndockPrivilege	1600	winupdate.exe
Token: SeManageVolumePrivilege	1600	winupdate.exe
Token: SeImpersonatePrivilege	1600	winupdate.exe
Token: SeCreateGlobalPrivilege	1600	winupdate.exe
Token: 33	1600	winupdate.exe
Token: 34	1600	winupdate.exe
Token: 35	1600	winupdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.execmd.exe

description	pid	process	target process
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1600	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	winupdate.exe
PID 1096 wrote to memory of 1640	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	cmd.exe
PID 1096 wrote to memory of 1640	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	cmd.exe
PID 1096 wrote to memory of 1640	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	cmd.exe
PID 1096 wrote to memory of 1640	1096	6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe	cmd.exe
PID 1640 wrote to memory of 396	1640	cmd.exe	PING.EXE
PID 1640 wrote to memory of 396	1640	cmd.exe	PING.EXE
PID 1640 wrote to memory of 396	1640	cmd.exe	PING.EXE
PID 1640 wrote to memory of 396	1640	cmd.exe	PING.EXE

C:\Users\Admin\AppData\Local\Temp\6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe
"C:\Users\Admin\AppData\Local\Temp\6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1096

C:\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
"C:\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
PID:1600

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8.exe"
2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 5
3⤵
- Runs ping.exe
PID:396

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
MD5
ed5d29a9ba18920e91a5947fa81e10ee

SHA1
2900a0904d02f022c270f2996294bd3687b47135

SHA256
6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

SHA512
437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
MD5
ed5d29a9ba18920e91a5947fa81e10ee

SHA1
2900a0904d02f022c270f2996294bd3687b47135

SHA256
6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

SHA512
437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
MD5
ed5d29a9ba18920e91a5947fa81e10ee

SHA1
2900a0904d02f022c270f2996294bd3687b47135

SHA256
6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

SHA512
437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
MD5
ed5d29a9ba18920e91a5947fa81e10ee

SHA1
2900a0904d02f022c270f2996294bd3687b47135

SHA256
6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

SHA512
437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
MD5
ed5d29a9ba18920e91a5947fa81e10ee

SHA1
2900a0904d02f022c270f2996294bd3687b47135

SHA256
6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

SHA512
437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\Windupdt\winupdate.exe
MD5
ed5d29a9ba18920e91a5947fa81e10ee

SHA1
2900a0904d02f022c270f2996294bd3687b47135

SHA256
6cd7f3906f7f27fe29c4b66549d910fa4ea5e9b6dd133ee1a2701bac992fe6c8

SHA512
437f039df0d403bef6e05be82e41883ba4ceeb43448e9dcef878b003d96ba6d2f4c44240b4c973133df0c3dadf9b7dbca6227e87f91c118033c4347164f6be8e

Download Submit
memory/396-71-0x0000000000000000-mapping.dmp

Download
memory/1096-60-0x00000000752F1000-0x00000000752F3000-memory.dmp

Filesize
8KB

Download
memory/1096-61-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/1600-63-0x0000000000000000-mapping.dmp

Download
memory/1600-72-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/1640-70-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads