darkcomet | a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

Resubmissions

05/02/2025, 07:18

250205-h48nyaxnbp 10

01/10/2022, 23:37

221001-3mk7jaddeq 10

Analysis

max time kernel
112s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2025, 07:18

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Size

690KB
MD5

45bfee45177d62952de9c03f661c4b1a
SHA1

e12804084039f235b768a21594c9e20b9ddb0d1b
SHA256

a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10
SHA512

288247162e0cd2dca6e0d51890a70694a2ffaf0b0983f41f0048271c74af16a9eb8175c0e9f6fd91325ca93423aafd6816278e93520308ce53372e4f848f1264
SSDEEP

12288:f9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h9lI:JZ1xuVVjfFoynPaVBUR8f+kN10EBW

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-7R3QTTQ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
NPore9Jz402K
install
true
offline_keylogger
true
persistence
false
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"	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe

Modifies security service 2 TTPs 1 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.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-1-5-21-3625106387-4207083342-115176794-1000\Control Panel\International\Geo\Nation	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe

Executes dropped EXE 1 IoCs

pid	Process
1464	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3625106387-4207083342-115176794-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe

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

System Information Discovery
T1082

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	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.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\	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSecurityPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeTakeOwnershipPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeLoadDriverPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSystemProfilePrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSystemtimePrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeProfSingleProcessPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeIncBasePriorityPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeCreatePagefilePrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeBackupPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeRestorePrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeShutdownPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeDebugPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSystemEnvironmentPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeChangeNotifyPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeRemoteShutdownPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeUndockPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeManageVolumePrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeImpersonatePrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeCreateGlobalPrivilege	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 33	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 34	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 35	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 36	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeIncreaseQuotaPrivilege	1464	msdcsc.exe
Token: SeSecurityPrivilege	1464	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1464	msdcsc.exe
Token: SeLoadDriverPrivilege	1464	msdcsc.exe
Token: SeSystemProfilePrivilege	1464	msdcsc.exe
Token: SeSystemtimePrivilege	1464	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1464	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1464	msdcsc.exe
Token: SeCreatePagefilePrivilege	1464	msdcsc.exe
Token: SeBackupPrivilege	1464	msdcsc.exe
Token: SeRestorePrivilege	1464	msdcsc.exe
Token: SeShutdownPrivilege	1464	msdcsc.exe
Token: SeDebugPrivilege	1464	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1464	msdcsc.exe
Token: SeChangeNotifyPrivilege	1464	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1464	msdcsc.exe
Token: SeUndockPrivilege	1464	msdcsc.exe
Token: SeManageVolumePrivilege	1464	msdcsc.exe
Token: SeImpersonatePrivilege	1464	msdcsc.exe
Token: SeCreateGlobalPrivilege	1464	msdcsc.exe
Token: 33	1464	msdcsc.exe
Token: 34	1464	msdcsc.exe
Token: 35	1464	msdcsc.exe
Token: 36	1464	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1464	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 1464	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	86
PID 4436 wrote to memory of 1464	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	86
PID 4436 wrote to memory of 1464	4436	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	86

C:\Users\Admin\AppData\Local\Temp\a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
C:\Users\Admin\AppData\Local\Temp\a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.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:4436
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1464

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
690KB

MD5
45bfee45177d62952de9c03f661c4b1a

SHA1
e12804084039f235b768a21594c9e20b9ddb0d1b

SHA256
a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

SHA512
288247162e0cd2dca6e0d51890a70694a2ffaf0b0983f41f0048271c74af16a9eb8175c0e9f6fd91325ca93423aafd6816278e93520308ce53372e4f848f1264

Download Submit
memory/1464-61-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/1464-64-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/1464-63-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4436-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

Filesize
4KB

Download
memory/4436-62-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads