darkcomet | 94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

General

Target

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Size

658KB
MD5

c83633173c75e4587c982d385df8d72a
SHA1

377c3e448695942b70d2e79a104578e82b603157
SHA256

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8
SHA512

3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hx:+Z1xuVVjfFoynPaVBUR8f+kN10EB7

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

cyberzak.zapto.org:8489

Mutex

DC_MUTEX-AJG90QM

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
rSEzkUJGrMNQ
install
true
offline_keylogger
true
persistence
true
reg_key
java

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

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1280 msdcsc.exe
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1996 notepad.exe

pid	process
1280	msdcsc.exe

pid	process
1996	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

pid	process
1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exemsdcsc.exeiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\java = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\java = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\java = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 1280 set thread context of 1948 1280 msdcsc.exe iexplore.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 1280 set thread context of 1948	1280	msdcsc.exe	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSecurityPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeTakeOwnershipPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeLoadDriverPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSystemProfilePrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSystemtimePrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeProfSingleProcessPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeIncBasePriorityPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeCreatePagefilePrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeBackupPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeRestorePrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeShutdownPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeDebugPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeSystemEnvironmentPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeChangeNotifyPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeRemoteShutdownPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeUndockPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeManageVolumePrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeImpersonatePrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeCreateGlobalPrivilege	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 33	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 34	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: 35	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
Token: SeIncreaseQuotaPrivilege	1280	msdcsc.exe
Token: SeSecurityPrivilege	1280	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1280	msdcsc.exe
Token: SeLoadDriverPrivilege	1280	msdcsc.exe
Token: SeSystemProfilePrivilege	1280	msdcsc.exe
Token: SeSystemtimePrivilege	1280	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1280	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1280	msdcsc.exe
Token: SeCreatePagefilePrivilege	1280	msdcsc.exe
Token: SeBackupPrivilege	1280	msdcsc.exe
Token: SeRestorePrivilege	1280	msdcsc.exe
Token: SeShutdownPrivilege	1280	msdcsc.exe
Token: SeDebugPrivilege	1280	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1280	msdcsc.exe
Token: SeChangeNotifyPrivilege	1280	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1280	msdcsc.exe
Token: SeUndockPrivilege	1280	msdcsc.exe
Token: SeManageVolumePrivilege	1280	msdcsc.exe
Token: SeImpersonatePrivilege	1280	msdcsc.exe
Token: SeCreateGlobalPrivilege	1280	msdcsc.exe
Token: 33	1280	msdcsc.exe
Token: 34	1280	msdcsc.exe
Token: 35	1280	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	1948	iexplore.exe
Token: SeSecurityPrivilege	1948	iexplore.exe
Token: SeTakeOwnershipPrivilege	1948	iexplore.exe
Token: SeLoadDriverPrivilege	1948	iexplore.exe
Token: SeSystemProfilePrivilege	1948	iexplore.exe
Token: SeSystemtimePrivilege	1948	iexplore.exe
Token: SeProfSingleProcessPrivilege	1948	iexplore.exe
Token: SeIncBasePriorityPrivilege	1948	iexplore.exe
Token: SeCreatePagefilePrivilege	1948	iexplore.exe
Token: SeBackupPrivilege	1948	iexplore.exe
Token: SeRestorePrivilege	1948	iexplore.exe
Token: SeShutdownPrivilege	1948	iexplore.exe
Token: SeDebugPrivilege	1948	iexplore.exe
Token: SeSystemEnvironmentPrivilege	1948	iexplore.exe
Token: SeChangeNotifyPrivilege	1948	iexplore.exe
Token: SeRemoteShutdownPrivilege	1948	iexplore.exe
Token: SeUndockPrivilege	1948	iexplore.exe
Token: SeManageVolumePrivilege	1948	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

1948 iexplore.exe

pid	process
1948	iexplore.exe

Suspicious use of WriteProcessMemory 28 IoCs

Processes:

94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exemsdcsc.exe

description	pid	process	target process
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1996	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	notepad.exe
PID 1572 wrote to memory of 1280	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 1572 wrote to memory of 1280	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 1572 wrote to memory of 1280	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 1572 wrote to memory of 1280	1572	94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe	msdcsc.exe
PID 1280 wrote to memory of 1948	1280	msdcsc.exe	iexplore.exe
PID 1280 wrote to memory of 1948	1280	msdcsc.exe	iexplore.exe
PID 1280 wrote to memory of 1948	1280	msdcsc.exe	iexplore.exe
PID 1280 wrote to memory of 1948	1280	msdcsc.exe	iexplore.exe
PID 1280 wrote to memory of 1948	1280	msdcsc.exe	iexplore.exe
PID 1280 wrote to memory of 1948	1280	msdcsc.exe	iexplore.exe

C:\Users\Admin\AppData\Local\Temp\94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe
"C:\Users\Admin\AppData\Local\Temp\94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1572
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:1996
- C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1280
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:1948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c83633173c75e4587c982d385df8d72a

SHA1
377c3e448695942b70d2e79a104578e82b603157

SHA256
94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

SHA512
3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b

Download Submit
C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c83633173c75e4587c982d385df8d72a

SHA1
377c3e448695942b70d2e79a104578e82b603157

SHA256
94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

SHA512
3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c83633173c75e4587c982d385df8d72a

SHA1
377c3e448695942b70d2e79a104578e82b603157

SHA256
94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

SHA512
3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b

Download Submit
\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
c83633173c75e4587c982d385df8d72a

SHA1
377c3e448695942b70d2e79a104578e82b603157

SHA256
94af298055cc25499e20468a5ff648c6be40286190381df9bd580cd7460160b8

SHA512
3ed1413b7bc02e2990d90b92b771396ed3b73be2be2c829d7ffc4d5e5d1e3ed046bd56465870cbedde372d767a390ade014d3cfdfdef00e251ca4ae85cf7566b

Download Submit
memory/1280-59-0x0000000000000000-mapping.dmp

Download
memory/1572-54-0x0000000076121000-0x0000000076123000-memory.dmp

Filesize
8KB

Download
memory/1996-55-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads