darkcomet | a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

Resubmissions

05/02/2025, 07:18

250205-h48nyaxnbp 10

01/10/2022, 23:37

221001-3mk7jaddeq 10

Analysis

max time kernel
185s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/10/2022, 23:37

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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 evasion 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

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"	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

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

Executes dropped EXE 1 IoCs

pid	Process
2000	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

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

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"	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.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	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSecurityPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeTakeOwnershipPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeLoadDriverPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSystemProfilePrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSystemtimePrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeProfSingleProcessPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeIncBasePriorityPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeCreatePagefilePrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeBackupPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeRestorePrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeShutdownPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeDebugPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeSystemEnvironmentPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeChangeNotifyPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeRemoteShutdownPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeUndockPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeManageVolumePrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeImpersonatePrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeCreateGlobalPrivilege	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 33	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 34	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: 35	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
Token: SeIncreaseQuotaPrivilege	2000	msdcsc.exe
Token: SeSecurityPrivilege	2000	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2000	msdcsc.exe
Token: SeLoadDriverPrivilege	2000	msdcsc.exe
Token: SeSystemProfilePrivilege	2000	msdcsc.exe
Token: SeSystemtimePrivilege	2000	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2000	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2000	msdcsc.exe
Token: SeCreatePagefilePrivilege	2000	msdcsc.exe
Token: SeBackupPrivilege	2000	msdcsc.exe
Token: SeRestorePrivilege	2000	msdcsc.exe
Token: SeShutdownPrivilege	2000	msdcsc.exe
Token: SeDebugPrivilege	2000	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2000	msdcsc.exe
Token: SeChangeNotifyPrivilege	2000	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2000	msdcsc.exe
Token: SeUndockPrivilege	2000	msdcsc.exe
Token: SeManageVolumePrivilege	2000	msdcsc.exe
Token: SeImpersonatePrivilege	2000	msdcsc.exe
Token: SeCreateGlobalPrivilege	2000	msdcsc.exe
Token: 33	2000	msdcsc.exe
Token: 34	2000	msdcsc.exe
Token: 35	2000	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2000	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 2000	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	28
PID 1788 wrote to memory of 2000	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	28
PID 1788 wrote to memory of 2000	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	28
PID 1788 wrote to memory of 2000	1788	a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe	28

C:\Users\Admin\AppData\Local\Temp\a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe
"C:\Users\Admin\AppData\Local\Temp\a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788
- 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
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2000

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

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
690KB

MD5
45bfee45177d62952de9c03f661c4b1a

SHA1
e12804084039f235b768a21594c9e20b9ddb0d1b

SHA256
a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

SHA512
288247162e0cd2dca6e0d51890a70694a2ffaf0b0983f41f0048271c74af16a9eb8175c0e9f6fd91325ca93423aafd6816278e93520308ce53372e4f848f1264

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

Filesize
690KB

MD5
45bfee45177d62952de9c03f661c4b1a

SHA1
e12804084039f235b768a21594c9e20b9ddb0d1b

SHA256
a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

SHA512
288247162e0cd2dca6e0d51890a70694a2ffaf0b0983f41f0048271c74af16a9eb8175c0e9f6fd91325ca93423aafd6816278e93520308ce53372e4f848f1264

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

Filesize
690KB

MD5
45bfee45177d62952de9c03f661c4b1a

SHA1
e12804084039f235b768a21594c9e20b9ddb0d1b

SHA256
a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

SHA512
288247162e0cd2dca6e0d51890a70694a2ffaf0b0983f41f0048271c74af16a9eb8175c0e9f6fd91325ca93423aafd6816278e93520308ce53372e4f848f1264

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

Filesize
690KB

MD5
45bfee45177d62952de9c03f661c4b1a

SHA1
e12804084039f235b768a21594c9e20b9ddb0d1b

SHA256
a4b196e112825232a260725c2651764ad8d2bdcc5974ee4b0a9c635c14b0eb10

SHA512
288247162e0cd2dca6e0d51890a70694a2ffaf0b0983f41f0048271c74af16a9eb8175c0e9f6fd91325ca93423aafd6816278e93520308ce53372e4f848f1264

Download Submit
memory/1788-54-0x0000000075241000-0x0000000075243000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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