darkcomet | 2d33602a8b9faf3fec568b2b59283a3e4b32b58884e74d0f289d49aa251f006d

Analysis

max time kernel
159s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
28/02/2024, 01:49

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General

Target
aab16a9fdd23a5076e3cfad0850914de.exe
Size 690KB
Sample240228-b8ywzagd91
SHA256 2d33602a8b9faf3fec568b2b59283a3e4b32b58884e74d0f289d49aa251f006d
MD5 aab16a9fdd23a5076e3cfad0850914de
SHA1 1876b464fda8b2e81ec871b7ba4bedfdf2c7f9a2
SHA512 7e73493cecd9fedd421a1895282b6b59ac1a08bdbfc51efbfc0afd4168960f4d92ba52a17da9d352ad192df3f4844a26c7b9ec616db3f5d52c1274f298bee36c
SSDEEP 12288:Z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hTo:jZ1xuVVjfFoynPaVBUR8f+kN10EBC
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet fxs persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

fighterfx.servegame.com:6690

Mutex

DC_MUTEX-RUM7S3W

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
skW3pTjM9iZS
install
true
offline_keylogger
true
password
neoshadow6870!ftwhbw8670
persistence
true
reg_key
MSMicroUpdate

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

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\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	aab16a9fdd23a5076e3cfad0850914de.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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	aab16a9fdd23a5076e3cfad0850914de.exe

Executes dropped EXE 1 IoCs

pid	Process
3696	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-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSMicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	aab16a9fdd23a5076e3cfad0850914de.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-557049126-2506969350-2798870634-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MSMicroUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3696	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeSecurityPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeTakeOwnershipPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeLoadDriverPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeSystemProfilePrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeSystemtimePrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeProfSingleProcessPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeIncBasePriorityPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeCreatePagefilePrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeBackupPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeRestorePrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeShutdownPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeDebugPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeSystemEnvironmentPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeChangeNotifyPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeRemoteShutdownPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeUndockPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeManageVolumePrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeImpersonatePrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeCreateGlobalPrivilege	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: 33	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: 34	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: 35	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: 36	2592	aab16a9fdd23a5076e3cfad0850914de.exe
Token: SeIncreaseQuotaPrivilege	3696	msdcsc.exe
Token: SeSecurityPrivilege	3696	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3696	msdcsc.exe
Token: SeLoadDriverPrivilege	3696	msdcsc.exe
Token: SeSystemProfilePrivilege	3696	msdcsc.exe
Token: SeSystemtimePrivilege	3696	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3696	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3696	msdcsc.exe
Token: SeCreatePagefilePrivilege	3696	msdcsc.exe
Token: SeBackupPrivilege	3696	msdcsc.exe
Token: SeRestorePrivilege	3696	msdcsc.exe
Token: SeShutdownPrivilege	3696	msdcsc.exe
Token: SeDebugPrivilege	3696	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3696	msdcsc.exe
Token: SeChangeNotifyPrivilege	3696	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3696	msdcsc.exe
Token: SeUndockPrivilege	3696	msdcsc.exe
Token: SeManageVolumePrivilege	3696	msdcsc.exe
Token: SeImpersonatePrivilege	3696	msdcsc.exe
Token: SeCreateGlobalPrivilege	3696	msdcsc.exe
Token: 33	3696	msdcsc.exe
Token: 34	3696	msdcsc.exe
Token: 35	3696	msdcsc.exe
Token: 36	3696	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3696	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 3696	2592	aab16a9fdd23a5076e3cfad0850914de.exe	90
PID 2592 wrote to memory of 3696	2592	aab16a9fdd23a5076e3cfad0850914de.exe	90
PID 2592 wrote to memory of 3696	2592	aab16a9fdd23a5076e3cfad0850914de.exe	90
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92
PID 3696 wrote to memory of 884	3696	msdcsc.exe	92

C:\Users\Admin\AppData\Local\Temp\aab16a9fdd23a5076e3cfad0850914de.exe
"C:\Users\Admin\AppData\Local\Temp\aab16a9fdd23a5076e3cfad0850914de.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3696
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:884

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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msdcsc.exe

Path C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
Size 690KB
SHA256 2d33602a8b9faf3fec568b2b59283a3e4b32b58884e74d0f289d49aa251f006d
MD5 aab16a9fdd23a5076e3cfad0850914de
SHA1 1876b464fda8b2e81ec871b7ba4bedfdf2c7f9a2
SHA512 7e73493cecd9fedd421a1895282b6b59ac1a08bdbfc51efbfc0afd4168960f4d92ba52a17da9d352ad192df3f4844a26c7b9ec616db3f5d52c1274f298bee36c
SSDEEP 12288:Z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hTo:jZ1xuVVjfFoynPaVBUR8f+kN10EBC
MD5 SHA1 SHA512 SSDEEP

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msdcsc.exe

Path C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
Size 583KB
SHA256 5ae6cca22cc0a5c04a39a145c536fba9ca95f8094778ee9164f00e6228ba32d7
MD5 1a70a735d1c3253db6208e119b18f785
SHA1 ad03c12d1677fafbe204c49318b7e09867a8437e
SHA512 ba97c0a5543605cb99b92a2ff48ef448228234184188640fc1bbce3b67c790bb6ac79e974e91e5d62a6278db79f9b4323376c93ceea10496e0ee570b404d5380
SSDEEP 12288:Z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5CH:jZ1xuVVjfFoynPaVBUR8f+kN10El
MD5 SHA1 SHA512 SSDEEP

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memory/884-15-0x00000000005E0000-0x00000000005E1000-memory.dmp

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memory/2592-16-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/2592-0-0x00000000023E0000-0x00000000023E1000-memory.dmp

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memory/3696-21-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-23-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-18-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-19-0x00000000022D0000-0x00000000022D1000-memory.dmp

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memory/3696-20-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-14-0x00000000022D0000-0x00000000022D1000-memory.dmp

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memory/3696-22-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-17-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-24-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-25-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-26-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-27-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-28-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-29-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-30-0x0000000000400000-0x00000000004BA000-memory.dmp

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memory/3696-31-0x0000000000400000-0x00000000004BA000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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