darkcomet | 7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb

General

Target

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Size

663KB
MD5

742b9cfbf6a1a647fff63a68db09ae9a
SHA1

401898c521fa87c5390fe84a420ad051b5f00e2e
SHA256

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb
SHA512

b20264cab69a080fbee3e117b7978c8e398b3ac898ab8a578dcfbda896148b334cdaa4244ee34064e3a38727556b04a17fa285c50fe344d6fe88ca92681d7e21
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hu:+Z1xuVVjfFoynPaVBUR8f+kN10EBE

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

darkcometrshack.zapto.org:1604

Mutex

DC_MUTEX-WY98CUV

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
DSuCzdL0CcY0
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

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

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"	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

676 msdcsc.exe
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1992 notepad.exe

pid	process
676	msdcsc.exe

pid	process
1992	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

pid	process
2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\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). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSecurityPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeTakeOwnershipPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeLoadDriverPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSystemProfilePrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSystemtimePrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeProfSingleProcessPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeIncBasePriorityPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeCreatePagefilePrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeBackupPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeRestorePrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeShutdownPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeDebugPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSystemEnvironmentPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeChangeNotifyPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeRemoteShutdownPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeUndockPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeManageVolumePrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeImpersonatePrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeCreateGlobalPrivilege	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 33	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 34	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 35	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeIncreaseQuotaPrivilege	676	msdcsc.exe
Token: SeSecurityPrivilege	676	msdcsc.exe
Token: SeTakeOwnershipPrivilege	676	msdcsc.exe
Token: SeLoadDriverPrivilege	676	msdcsc.exe
Token: SeSystemProfilePrivilege	676	msdcsc.exe
Token: SeSystemtimePrivilege	676	msdcsc.exe
Token: SeProfSingleProcessPrivilege	676	msdcsc.exe
Token: SeIncBasePriorityPrivilege	676	msdcsc.exe
Token: SeCreatePagefilePrivilege	676	msdcsc.exe
Token: SeBackupPrivilege	676	msdcsc.exe
Token: SeRestorePrivilege	676	msdcsc.exe
Token: SeShutdownPrivilege	676	msdcsc.exe
Token: SeDebugPrivilege	676	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	676	msdcsc.exe
Token: SeChangeNotifyPrivilege	676	msdcsc.exe
Token: SeRemoteShutdownPrivilege	676	msdcsc.exe
Token: SeUndockPrivilege	676	msdcsc.exe
Token: SeManageVolumePrivilege	676	msdcsc.exe
Token: SeImpersonatePrivilege	676	msdcsc.exe
Token: SeCreateGlobalPrivilege	676	msdcsc.exe
Token: 33	676	msdcsc.exe
Token: 34	676	msdcsc.exe
Token: 35	676	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

676 msdcsc.exe

pid	process
676	msdcsc.exe

Suspicious use of WriteProcessMemory 45 IoCs

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exemsdcsc.exe

description	pid	process	target process
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 1992	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 2016 wrote to memory of 676	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 2016 wrote to memory of 676	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 2016 wrote to memory of 676	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 2016 wrote to memory of 676	2016	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe
PID 676 wrote to memory of 568	676	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
"C:\Users\Admin\AppData\Local\Temp\7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:1992

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:676

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:568

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
663KB

MD5
742b9cfbf6a1a647fff63a68db09ae9a

SHA1
401898c521fa87c5390fe84a420ad051b5f00e2e

SHA256
7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb

SHA512
b20264cab69a080fbee3e117b7978c8e398b3ac898ab8a578dcfbda896148b334cdaa4244ee34064e3a38727556b04a17fa285c50fe344d6fe88ca92681d7e21

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
663KB

MD5
742b9cfbf6a1a647fff63a68db09ae9a

SHA1
401898c521fa87c5390fe84a420ad051b5f00e2e

SHA256
7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb

SHA512
b20264cab69a080fbee3e117b7978c8e398b3ac898ab8a578dcfbda896148b334cdaa4244ee34064e3a38727556b04a17fa285c50fe344d6fe88ca92681d7e21

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
663KB

MD5
742b9cfbf6a1a647fff63a68db09ae9a

SHA1
401898c521fa87c5390fe84a420ad051b5f00e2e

SHA256
7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb

SHA512
b20264cab69a080fbee3e117b7978c8e398b3ac898ab8a578dcfbda896148b334cdaa4244ee34064e3a38727556b04a17fa285c50fe344d6fe88ca92681d7e21

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
663KB

MD5
742b9cfbf6a1a647fff63a68db09ae9a

SHA1
401898c521fa87c5390fe84a420ad051b5f00e2e

SHA256
7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb

SHA512
b20264cab69a080fbee3e117b7978c8e398b3ac898ab8a578dcfbda896148b334cdaa4244ee34064e3a38727556b04a17fa285c50fe344d6fe88ca92681d7e21

Download Submit
memory/568-63-0x0000000000000000-mapping.dmp

Download
memory/676-59-0x0000000000000000-mapping.dmp

Download
memory/1992-55-0x0000000000000000-mapping.dmp

Download
memory/2016-54-0x00000000766D1000-0x00000000766D3000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads