darkcomet | 9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-12-2024 00:08

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General

Target

9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
Size

1.8MB
MD5

7634e21993a82b8bf1906df9c83dcfb6
SHA1

3bff833bf7d77465194ed7759c455861d5e9ee75
SHA256

9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a
SHA512

b86a09b32aac425e601783fe38c45df2afe2c2564683e5bffbe3d051374260de675b6ac38ede9b469de511cc19b7e08425ebd7571c4a43ce400f058fb1663e89
SSDEEP

24576:ZPuNKEpMtcGnPblbg2CMumABe1vUmeuVF4pNq2cXsuzE6yRpxdOe0siOEC:FE9GzWk8epJeOFu01jyLDOediOx

Score

10^/10

darkcomet bmx discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

BMX

criticaljack.no-ip.org:1614

Mutex

DC_MUTEX-ZU6CR1Y

Attributes

InstallPath
WIN32\nginx.exe
gencode
pNqRHoH8DwAw
install
true
offline_keylogger
true
password
zimbaouais24
persistence
true
reg_key
Java Platform SE Auto Updater

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java Platform SE Auto Updater.vbs	nginx.exe

Executes dropped EXE 3 IoCs

pid	Process
3940	MXNRGD.exe
1704	nginx.exe
1492	nginx.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Java Platform SE Auto Updater = "C:\\Users\\Admin\\AppData\\Roaming\\WIN32\\nginx.exe"	nginx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 1492	1704	nginx.exe	87

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 5 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	nginx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MXNRGD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nginx.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe:ZoneIdentifier	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe
1704	nginx.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1492	nginx.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
1704	nginx.exe
1704	nginx.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1492	nginx.exe
Token: SeSecurityPrivilege	1492	nginx.exe
Token: SeTakeOwnershipPrivilege	1492	nginx.exe
Token: SeLoadDriverPrivilege	1492	nginx.exe
Token: SeSystemProfilePrivilege	1492	nginx.exe
Token: SeSystemtimePrivilege	1492	nginx.exe
Token: SeProfSingleProcessPrivilege	1492	nginx.exe
Token: SeIncBasePriorityPrivilege	1492	nginx.exe
Token: SeCreatePagefilePrivilege	1492	nginx.exe
Token: SeBackupPrivilege	1492	nginx.exe
Token: SeRestorePrivilege	1492	nginx.exe
Token: SeShutdownPrivilege	1492	nginx.exe
Token: SeDebugPrivilege	1492	nginx.exe
Token: SeSystemEnvironmentPrivilege	1492	nginx.exe
Token: SeChangeNotifyPrivilege	1492	nginx.exe
Token: SeRemoteShutdownPrivilege	1492	nginx.exe
Token: SeUndockPrivilege	1492	nginx.exe
Token: SeManageVolumePrivilege	1492	nginx.exe
Token: SeImpersonatePrivilege	1492	nginx.exe
Token: SeCreateGlobalPrivilege	1492	nginx.exe
Token: 33	1492	nginx.exe
Token: 34	1492	nginx.exe
Token: 35	1492	nginx.exe
Token: 36	1492	nginx.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1492	nginx.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 4980 wrote to memory of 3940	4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	85
PID 4980 wrote to memory of 3940	4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	85
PID 4980 wrote to memory of 3940	4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	85
PID 4980 wrote to memory of 1704	4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	86
PID 4980 wrote to memory of 1704	4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	86
PID 4980 wrote to memory of 1704	4980	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	86
PID 1704 wrote to memory of 1492	1704	nginx.exe	87
PID 1704 wrote to memory of 1492	1704	nginx.exe	87
PID 1704 wrote to memory of 1492	1704	nginx.exe	87
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88
PID 1492 wrote to memory of 3388	1492	nginx.exe	88

C:\Users\Admin\AppData\Local\Temp\9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
"C:\Users\Admin\AppData\Local\Temp\9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4980
- C:\Users\Admin\AppData\Local\Temp\MXNRGD.exe
  "C:\Users\Admin\AppData\Local\Temp\MXNRGD.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3940
- C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe
  "C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1704
- - C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe
    "C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1492
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3388

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

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\AppData\Local\Temp\MXNRGD.exe

Filesize
126KB

MD5
0af9a07c51deb2c2caa4ee642d7cebf4

SHA1
ef0edbad0416053a777f829ca50172871a9a93b7

SHA256
48219151ee425b54be4301f9fa57adc708c5aa66bd82e00356fa421a5a621fad

SHA512
6c4ad23814b9498cac7c289d76b7f00d3c0381203e4e7729bf18ad3763be2fc7d4423f0f1a8c88d4b8df20f3dda99fdc513f57c0f9dea5534fa912194b375505

Download Submit
C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe

Filesize
1.8MB

MD5
7634e21993a82b8bf1906df9c83dcfb6

SHA1
3bff833bf7d77465194ed7759c455861d5e9ee75

SHA256
9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a

SHA512
b86a09b32aac425e601783fe38c45df2afe2c2564683e5bffbe3d051374260de675b6ac38ede9b469de511cc19b7e08425ebd7571c4a43ce400f058fb1663e89

Download Submit
memory/1492-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-37-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-31-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-35-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1492-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1704-20-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/1704-15-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/3388-25-0x0000000000740000-0x0000000000741000-memory.dmp

Filesize
4KB

Download
memory/4980-0-0x0000000002710000-0x0000000002711000-memory.dmp

Filesize
4KB

Download
memory/4980-14-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download