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

4556 msdcsc.exe

pid	process
4556	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

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\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

Modifies registry class 1 IoCs

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSecurityPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeTakeOwnershipPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeLoadDriverPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSystemProfilePrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSystemtimePrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeProfSingleProcessPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeIncBasePriorityPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeCreatePagefilePrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeBackupPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeRestorePrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeShutdownPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeDebugPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeSystemEnvironmentPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeChangeNotifyPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeRemoteShutdownPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeUndockPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeManageVolumePrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeImpersonatePrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeCreateGlobalPrivilege	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 33	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 34	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 35	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: 36	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe
Token: SeIncreaseQuotaPrivilege	4556	msdcsc.exe
Token: SeSecurityPrivilege	4556	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4556	msdcsc.exe
Token: SeLoadDriverPrivilege	4556	msdcsc.exe
Token: SeSystemProfilePrivilege	4556	msdcsc.exe
Token: SeSystemtimePrivilege	4556	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4556	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4556	msdcsc.exe
Token: SeCreatePagefilePrivilege	4556	msdcsc.exe
Token: SeBackupPrivilege	4556	msdcsc.exe
Token: SeRestorePrivilege	4556	msdcsc.exe
Token: SeShutdownPrivilege	4556	msdcsc.exe
Token: SeDebugPrivilege	4556	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4556	msdcsc.exe
Token: SeChangeNotifyPrivilege	4556	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4556	msdcsc.exe
Token: SeUndockPrivilege	4556	msdcsc.exe
Token: SeManageVolumePrivilege	4556	msdcsc.exe
Token: SeImpersonatePrivilege	4556	msdcsc.exe
Token: SeCreateGlobalPrivilege	4556	msdcsc.exe
Token: 33	4556	msdcsc.exe
Token: 34	4556	msdcsc.exe
Token: 35	4556	msdcsc.exe
Token: 36	4556	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

4556 msdcsc.exe

pid	process
4556	msdcsc.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exemsdcsc.exe

description	pid	process	target process
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 640	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	notepad.exe
PID 5004 wrote to memory of 4556	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 5004 wrote to memory of 4556	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 5004 wrote to memory of 4556	5004	7fb37de5b0d3a10bd5f0c4667421419d5948c422f89116a474250ecadec9ebcb.exe	msdcsc.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	msdcsc.exe	notepad.exe
PID 4556 wrote to memory of 1448	4556	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
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5004

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
PID:640

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:4556

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1448

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

Query Registry

1

T1012

System Information Discovery

2

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
memory/640-132-0x0000000000000000-mapping.dmp

Download
memory/1448-136-0x0000000000000000-mapping.dmp

Download
memory/4556-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads