darkcomet | 5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349

General

Target

5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe
Size

381KB
MD5

48d1ef130b75aac8d5e6869d895b2ce8
SHA1

824b9c87c189f487f3a77a805cb1a20d3df03de3
SHA256

5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349
SHA512

5bb039172ab860556ba0dfb7c19bb093c1ba75db36038caf5939c5187548cb866fdd1707613d4116979980897ab071551329e4913aeba30c067777c4b43e1ee8

Score

10^/10

darkcomet jdb persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

JDB

C2

ogparm.no-ip.org:1604

Mutex

DC_MUTEX-GE44X6V

Attributes

gencode
HNF9l7VodZpQ
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

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:

5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WindowsDefender = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe

description	pid	process	target process
PID 1880 set thread context of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.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 key 1 TTPs 1 IoCs

Modify Registry
T1112

Processes:

reg.exe

pid process

2004 reg.exe

pid	process
2004	reg.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

cvtres.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2600	cvtres.exe
Token: SeSecurityPrivilege	2600	cvtres.exe
Token: SeTakeOwnershipPrivilege	2600	cvtres.exe
Token: SeLoadDriverPrivilege	2600	cvtres.exe
Token: SeSystemProfilePrivilege	2600	cvtres.exe
Token: SeSystemtimePrivilege	2600	cvtres.exe
Token: SeProfSingleProcessPrivilege	2600	cvtres.exe
Token: SeIncBasePriorityPrivilege	2600	cvtres.exe
Token: SeCreatePagefilePrivilege	2600	cvtres.exe
Token: SeBackupPrivilege	2600	cvtres.exe
Token: SeRestorePrivilege	2600	cvtres.exe
Token: SeShutdownPrivilege	2600	cvtres.exe
Token: SeDebugPrivilege	2600	cvtres.exe
Token: SeSystemEnvironmentPrivilege	2600	cvtres.exe
Token: SeChangeNotifyPrivilege	2600	cvtres.exe
Token: SeRemoteShutdownPrivilege	2600	cvtres.exe
Token: SeUndockPrivilege	2600	cvtres.exe
Token: SeManageVolumePrivilege	2600	cvtres.exe
Token: SeImpersonatePrivilege	2600	cvtres.exe
Token: SeCreateGlobalPrivilege	2600	cvtres.exe
Token: 33	2600	cvtres.exe
Token: 34	2600	cvtres.exe
Token: 35	2600	cvtres.exe
Token: 36	2600	cvtres.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cvtres.exe

pid process

2600 cvtres.exe

pid	process
2600	cvtres.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.execmd.exe

description	pid	process	target process
PID 1880 wrote to memory of 2860	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cmd.exe
PID 1880 wrote to memory of 2860	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cmd.exe
PID 1880 wrote to memory of 2860	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cmd.exe
PID 1880 wrote to memory of 3856	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cmd.exe
PID 1880 wrote to memory of 3856	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cmd.exe
PID 1880 wrote to memory of 3856	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cmd.exe
PID 2860 wrote to memory of 2004	2860	cmd.exe	reg.exe
PID 2860 wrote to memory of 2004	2860	cmd.exe	reg.exe
PID 2860 wrote to memory of 2004	2860	cmd.exe	reg.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe
PID 1880 wrote to memory of 2600	1880	5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe	cvtres.exe

C:\Users\Admin\AppData\Local\Temp\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe
"C:\Users\Admin\AppData\Local\Temp\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1880

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v WindowsDefender /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:2860

C:\Windows\SysWOW64\reg.exe
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v WindowsDefender /t REG_SZ /d C:\Users\Admin\AppData\Local\Temp\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe
3⤵
- Adds Run key to start application
- Modifies registry key
PID:2004

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c copy C:\Users\Admin\AppData\Local\Temp\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe C:\Users\Admin\AppData\Local\Temp\5ffd8b673b47b76d5e1f08008a1bd8b97e74b7660d7057c1ddbc37a47ef97349.exe /Y & exit
2⤵
PID:3856

C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2600

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

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

memory/1880-130-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/1880-138-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/2004-133-0x0000000000000000-mapping.dmp

Download
memory/2600-134-0x0000000000000000-mapping.dmp

Download
memory/2600-135-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2600-136-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2600-137-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2600-139-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2600-140-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2860-131-0x0000000000000000-mapping.dmp

Download
memory/3856-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads