darkcomet | 9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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

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
1028	MXNRGD.exe
2564	nginx.exe
2704	nginx.exe

Loads dropped DLL 4 IoCs

pid	Process
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
2564	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-1-5-21-2039016743-699959520-214465309-1000\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 2564 set thread context of 2704	2564	nginx.exe	33

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	MXNRGD.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nginx.exe
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

NTFS ADS 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
2564	nginx.exe
2564	nginx.exe
2564	nginx.exe
2564	nginx.exe
2564	nginx.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2704	nginx.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2564	nginx.exe
2564	nginx.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2704	nginx.exe
Token: SeSecurityPrivilege	2704	nginx.exe
Token: SeTakeOwnershipPrivilege	2704	nginx.exe
Token: SeLoadDriverPrivilege	2704	nginx.exe
Token: SeSystemProfilePrivilege	2704	nginx.exe
Token: SeSystemtimePrivilege	2704	nginx.exe
Token: SeProfSingleProcessPrivilege	2704	nginx.exe
Token: SeIncBasePriorityPrivilege	2704	nginx.exe
Token: SeCreatePagefilePrivilege	2704	nginx.exe
Token: SeBackupPrivilege	2704	nginx.exe
Token: SeRestorePrivilege	2704	nginx.exe
Token: SeShutdownPrivilege	2704	nginx.exe
Token: SeDebugPrivilege	2704	nginx.exe
Token: SeSystemEnvironmentPrivilege	2704	nginx.exe
Token: SeChangeNotifyPrivilege	2704	nginx.exe
Token: SeRemoteShutdownPrivilege	2704	nginx.exe
Token: SeUndockPrivilege	2704	nginx.exe
Token: SeManageVolumePrivilege	2704	nginx.exe
Token: SeImpersonatePrivilege	2704	nginx.exe
Token: SeCreateGlobalPrivilege	2704	nginx.exe
Token: 33	2704	nginx.exe
Token: 34	2704	nginx.exe
Token: 35	2704	nginx.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2704	nginx.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 1028	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	31
PID 1668 wrote to memory of 1028	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	31
PID 1668 wrote to memory of 1028	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	31
PID 1668 wrote to memory of 1028	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	31
PID 1668 wrote to memory of 2564	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	32
PID 1668 wrote to memory of 2564	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	32
PID 1668 wrote to memory of 2564	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	32
PID 1668 wrote to memory of 2564	1668	9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe	32
PID 2564 wrote to memory of 2704	2564	nginx.exe	33
PID 2564 wrote to memory of 2704	2564	nginx.exe	33
PID 2564 wrote to memory of 2704	2564	nginx.exe	33
PID 2564 wrote to memory of 2704	2564	nginx.exe	33
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34
PID 2704 wrote to memory of 2764	2704	nginx.exe	34

C:\Users\Admin\AppData\Local\Temp\9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe
"C:\Users\Admin\AppData\Local\Temp\9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1668
- 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:1028
- C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe
  "C:\Users\Admin\AppData\Roaming\WIN32\nginx.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2564
- - 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:2704
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2764

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\MXNRGD.exe

Filesize
126KB

MD5
0af9a07c51deb2c2caa4ee642d7cebf4

SHA1
ef0edbad0416053a777f829ca50172871a9a93b7

SHA256
48219151ee425b54be4301f9fa57adc708c5aa66bd82e00356fa421a5a621fad

SHA512
6c4ad23814b9498cac7c289d76b7f00d3c0381203e4e7729bf18ad3763be2fc7d4423f0f1a8c88d4b8df20f3dda99fdc513f57c0f9dea5534fa912194b375505

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

Filesize
1.8MB

MD5
7634e21993a82b8bf1906df9c83dcfb6

SHA1
3bff833bf7d77465194ed7759c455861d5e9ee75

SHA256
9054fd07eff52349a740bc6202cc6957496d1a70cbe5cb006b40d72db0ba847a

SHA512
b86a09b32aac425e601783fe38c45df2afe2c2564683e5bffbe3d051374260de675b6ac38ede9b469de511cc19b7e08425ebd7571c4a43ce400f058fb1663e89

Download Submit
memory/1668-16-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/1668-0-0x00000000003C0000-0x00000000003C1000-memory.dmp

Filesize
4KB

Download
memory/2564-24-0x0000000000400000-0x00000000005D0000-memory.dmp

Filesize
1.8MB

Download
memory/2564-17-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/2704-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-79-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-84-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-83-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-80-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-81-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2704-82-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2764-29-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2764-67-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download