darkcomet | 8163050543404775d0ce0d5c669329132858e826a525ced20ff69f09cb373815

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 01:35

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General

Target

ANTI.exe
Size

649KB
MD5

2228a7c38b50114e7bec2d943f06acde
SHA1

15c6b33fe6a0ca328c2036b9017cd6d3a4a4397e
SHA256

49c0b1d294cca6b6c0d78b16f2b0efb081cd49bfe586653ea533b07328761aa6
SHA512

8c19ec40e2599613f7a8e4ba4544a1080f49db1740939c4fce4fcb8a0e9e111c4548a5aab6a0246b335858b6bf258ed7f2faa84c8d3d157e093fd5803ba5f488
SSDEEP

12288:bk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+X:Q0QRWoJEfg0oChGdJQbjPbNW5tYeP+Ge

Score

10^/10

darkcomet guest16_min discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

BAHROZPOOL.ZAPTO.ORG:1604

Mutex

DCMIN_MUTEX-FQK5TTL

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
brdwfMVFo8ev
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
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\\Documents\\DCSCMIN\\IMDCSC.exe"	ANTI.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ANTI.exe

Executes dropped EXE 1 IoCs

pid	Process
4552	IMDCSC.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	ANTI.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ANTI.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IMDCSC.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1764	ANTI.exe
Token: SeSecurityPrivilege	1764	ANTI.exe
Token: SeTakeOwnershipPrivilege	1764	ANTI.exe
Token: SeLoadDriverPrivilege	1764	ANTI.exe
Token: SeSystemProfilePrivilege	1764	ANTI.exe
Token: SeSystemtimePrivilege	1764	ANTI.exe
Token: SeProfSingleProcessPrivilege	1764	ANTI.exe
Token: SeIncBasePriorityPrivilege	1764	ANTI.exe
Token: SeCreatePagefilePrivilege	1764	ANTI.exe
Token: SeBackupPrivilege	1764	ANTI.exe
Token: SeRestorePrivilege	1764	ANTI.exe
Token: SeShutdownPrivilege	1764	ANTI.exe
Token: SeDebugPrivilege	1764	ANTI.exe
Token: SeSystemEnvironmentPrivilege	1764	ANTI.exe
Token: SeChangeNotifyPrivilege	1764	ANTI.exe
Token: SeRemoteShutdownPrivilege	1764	ANTI.exe
Token: SeUndockPrivilege	1764	ANTI.exe
Token: SeManageVolumePrivilege	1764	ANTI.exe
Token: SeImpersonatePrivilege	1764	ANTI.exe
Token: SeCreateGlobalPrivilege	1764	ANTI.exe
Token: 33	1764	ANTI.exe
Token: 34	1764	ANTI.exe
Token: 35	1764	ANTI.exe
Token: 36	1764	ANTI.exe
Token: SeIncreaseQuotaPrivilege	4552	IMDCSC.exe
Token: SeSecurityPrivilege	4552	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	4552	IMDCSC.exe
Token: SeLoadDriverPrivilege	4552	IMDCSC.exe
Token: SeSystemProfilePrivilege	4552	IMDCSC.exe
Token: SeSystemtimePrivilege	4552	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	4552	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	4552	IMDCSC.exe
Token: SeCreatePagefilePrivilege	4552	IMDCSC.exe
Token: SeBackupPrivilege	4552	IMDCSC.exe
Token: SeRestorePrivilege	4552	IMDCSC.exe
Token: SeShutdownPrivilege	4552	IMDCSC.exe
Token: SeDebugPrivilege	4552	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	4552	IMDCSC.exe
Token: SeChangeNotifyPrivilege	4552	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	4552	IMDCSC.exe
Token: SeUndockPrivilege	4552	IMDCSC.exe
Token: SeManageVolumePrivilege	4552	IMDCSC.exe
Token: SeImpersonatePrivilege	4552	IMDCSC.exe
Token: SeCreateGlobalPrivilege	4552	IMDCSC.exe
Token: 33	4552	IMDCSC.exe
Token: 34	4552	IMDCSC.exe
Token: 35	4552	IMDCSC.exe
Token: 36	4552	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4552	IMDCSC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 4552	1764	ANTI.exe	82
PID 1764 wrote to memory of 4552	1764	ANTI.exe	82
PID 1764 wrote to memory of 4552	1764	ANTI.exe	82

C:\Users\Admin\AppData\Local\Temp\ANTI.exe
"C:\Users\Admin\AppData\Local\Temp\ANTI.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
  "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4552

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
649KB

MD5
2228a7c38b50114e7bec2d943f06acde

SHA1
15c6b33fe6a0ca328c2036b9017cd6d3a4a4397e

SHA256
49c0b1d294cca6b6c0d78b16f2b0efb081cd49bfe586653ea533b07328761aa6

SHA512
8c19ec40e2599613f7a8e4ba4544a1080f49db1740939c4fce4fcb8a0e9e111c4548a5aab6a0246b335858b6bf258ed7f2faa84c8d3d157e093fd5803ba5f488

Download Submit
memory/1764-0-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/1764-11-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-18-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-20-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-15-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-16-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-17-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-13-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/4552-19-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-14-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-21-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-22-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-23-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-24-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-26-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4552-27-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads