darkcomet | 6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19

Resubmissions

05/02/2025, 07:16

250205-h37egsxmgp 10

01/10/2022, 23:38

221001-3mnmnaddfk 10

Analysis

max time kernel
120s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2025, 07:16

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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 ??????? ?????discovery 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
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe

Executes dropped EXE 1 IoCs

pid	Process
4564	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2284	4120	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSecurityPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeTakeOwnershipPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeLoadDriverPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSystemProfilePrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSystemtimePrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeProfSingleProcessPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeIncBasePriorityPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeCreatePagefilePrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeBackupPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeRestorePrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeShutdownPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeDebugPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeSystemEnvironmentPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeChangeNotifyPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeRemoteShutdownPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeUndockPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeManageVolumePrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeImpersonatePrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeCreateGlobalPrivilege	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 33	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 34	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 35	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: 36	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
Token: SeIncreaseQuotaPrivilege	4564	msdcsc.exe
Token: SeSecurityPrivilege	4564	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4564	msdcsc.exe
Token: SeLoadDriverPrivilege	4564	msdcsc.exe
Token: SeSystemProfilePrivilege	4564	msdcsc.exe
Token: SeSystemtimePrivilege	4564	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4564	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4564	msdcsc.exe
Token: SeCreatePagefilePrivilege	4564	msdcsc.exe
Token: SeBackupPrivilege	4564	msdcsc.exe
Token: SeRestorePrivilege	4564	msdcsc.exe
Token: SeShutdownPrivilege	4564	msdcsc.exe
Token: SeDebugPrivilege	4564	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4564	msdcsc.exe
Token: SeChangeNotifyPrivilege	4564	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4564	msdcsc.exe
Token: SeUndockPrivilege	4564	msdcsc.exe
Token: SeManageVolumePrivilege	4564	msdcsc.exe
Token: SeImpersonatePrivilege	4564	msdcsc.exe
Token: SeCreateGlobalPrivilege	4564	msdcsc.exe
Token: 33	4564	msdcsc.exe
Token: 34	4564	msdcsc.exe
Token: 35	4564	msdcsc.exe
Token: 36	4564	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4564	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4120	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	84
PID 428 wrote to memory of 4564	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	88
PID 428 wrote to memory of 4564	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	88
PID 428 wrote to memory of 4564	428	6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe	88

C:\Users\Admin\AppData\Local\Temp\6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe
C:\Users\Admin\AppData\Local\Temp\6d1114427ccb910e86a1059aced36b340933c5b0157592b6f856093fbf209e19.exe dsrm -subtree -noprompt -c user"http://+:443"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:428
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  PID:4120
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4120 -s 84
    3⤵
    - Program crash
    PID:2284
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4564

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4120 -ip 4120
1⤵
PID:1752

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
memory/428-64-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/428-0-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/4120-4-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/4564-69-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-67-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4564-66-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-68-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-63-0x00000000006C0000-0x00000000006C1000-memory.dmp

Filesize
4KB

Download
memory/4564-70-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-72-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-73-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-74-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-75-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-76-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4564-77-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads