darkcomet | 6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19

Resubmissions

05/02/2025, 07:16

250205-h37egsxmgp 10

01/10/2022, 23:38

221001-3mnmnaddfk 10

Analysis

max time kernel
160s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/10/2022, 23:38

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General

Target

6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Size

756KB
MD5

03b6b6a9f2714fb4102b9cbdf6516021
SHA1

ca58b17036e13680e099b14f1425872ad4818468
SHA256

6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19
SHA512

cbea332541d72dc100241abcf968b797b826b1ba172b213dd92487d4178846fb96bb761a7415ddfdb990e872bac3512bcf01e98ec37cb454491fa08c765b8edd
SSDEEP

12288:V9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hV:fZ1xuVVjfFoynPaVBUR8f+kN10EBj

Score

10^/10

darkcomet ??????? ?????persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

??????? ?????

samassim.no-ip.biz:1034

Mutex

DC_MUTEX-M8L7C9X

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
uAUVGv1cv31e
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

T1004

Modify Registry

T1112

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"	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe

Executes dropped EXE 1 IoCs

pid	Process
1620	msdcsc.exe

Deletes itself 1 IoCs

pid	Process
1668	notepad.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSecurityPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeTakeOwnershipPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeLoadDriverPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSystemProfilePrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSystemtimePrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeProfSingleProcessPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeIncBasePriorityPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeCreatePagefilePrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeBackupPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeRestorePrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeShutdownPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeDebugPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSystemEnvironmentPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeChangeNotifyPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeRemoteShutdownPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeUndockPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeManageVolumePrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeImpersonatePrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeCreateGlobalPrivilege	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 33	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 34	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 35	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeIncreaseQuotaPrivilege	1620	msdcsc.exe
Token: SeSecurityPrivilege	1620	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1620	msdcsc.exe
Token: SeLoadDriverPrivilege	1620	msdcsc.exe
Token: SeSystemProfilePrivilege	1620	msdcsc.exe
Token: SeSystemtimePrivilege	1620	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1620	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1620	msdcsc.exe
Token: SeCreatePagefilePrivilege	1620	msdcsc.exe
Token: SeBackupPrivilege	1620	msdcsc.exe
Token: SeRestorePrivilege	1620	msdcsc.exe
Token: SeShutdownPrivilege	1620	msdcsc.exe
Token: SeDebugPrivilege	1620	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1620	msdcsc.exe
Token: SeChangeNotifyPrivilege	1620	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1620	msdcsc.exe
Token: SeUndockPrivilege	1620	msdcsc.exe
Token: SeManageVolumePrivilege	1620	msdcsc.exe
Token: SeImpersonatePrivilege	1620	msdcsc.exe
Token: SeCreateGlobalPrivilege	1620	msdcsc.exe
Token: 33	1620	msdcsc.exe
Token: 34	1620	msdcsc.exe
Token: 35	1620	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1620	msdcsc.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1668	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	28
PID 1964 wrote to memory of 1620	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	29
PID 1964 wrote to memory of 1620	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	29
PID 1964 wrote to memory of 1620	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	29
PID 1964 wrote to memory of 1620	1964	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	29

C:\Users\Admin\AppData\Local\Temp\6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
"C:\Users\Admin\AppData\Local\Temp\6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1964
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:1668
- 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 AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
03b6b6a9f2714fb4102b9cbdf6516021

SHA1
ca58b17036e13680e099b14f1425872ad4818468

SHA256
6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19

SHA512
cbea332541d72dc100241abcf968b797b826b1ba172b213dd92487d4178846fb96bb761a7415ddfdb990e872bac3512bcf01e98ec37cb454491fa08c765b8edd

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
03b6b6a9f2714fb4102b9cbdf6516021

SHA1
ca58b17036e13680e099b14f1425872ad4818468

SHA256
6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19

SHA512
cbea332541d72dc100241abcf968b797b826b1ba172b213dd92487d4178846fb96bb761a7415ddfdb990e872bac3512bcf01e98ec37cb454491fa08c765b8edd

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
03b6b6a9f2714fb4102b9cbdf6516021

SHA1
ca58b17036e13680e099b14f1425872ad4818468

SHA256
6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19

SHA512
cbea332541d72dc100241abcf968b797b826b1ba172b213dd92487d4178846fb96bb761a7415ddfdb990e872bac3512bcf01e98ec37cb454491fa08c765b8edd

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
03b6b6a9f2714fb4102b9cbdf6516021

SHA1
ca58b17036e13680e099b14f1425872ad4818468

SHA256
6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19

SHA512
cbea332541d72dc100241abcf968b797b826b1ba172b213dd92487d4178846fb96bb761a7415ddfdb990e872bac3512bcf01e98ec37cb454491fa08c765b8edd

Download Submit
memory/1964-54-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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