darkcomet | 7c5aa3941d777c085c3d936fe8a4a4644210b0ec48267fc62ba2a044ed4eeb21

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
16-04-2024 22:01

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General

Target

f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe
Size

834KB
MD5

f46c01edc415cb7eac960368a1f1e2f2
SHA1

afcb4f303a4cf5d70fbd4714abae58a5ebbea663
SHA256

7c5aa3941d777c085c3d936fe8a4a4644210b0ec48267fc62ba2a044ed4eeb21
SHA512

fc9aefb22563dd616626a0813b5d40ba3a8a1da7bc53e3bc6268280dd095f20bb194671520210fde55045012582cd7bf429f967a216d11441a8f9257fd9fe8f9
SSDEEP

24576:tMcKVmKIeOwO5U0/hV7kOp2x1XiQ+NzPwW56Zz4bd3c:ScKVmKIenqU0/v7kOp2x1XiQsjn6F4b

Score

10^/10

darkcomet windows persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Windows

darkcometlol.no-ip.org:1604

Mutex

DC_MUTEX-CD6BS17

Attributes

gencode
e4CigQQ2jcfd
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:

f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

Processes:

win.execvtres.exe

pid	Process
3352	win.exe
2956	cvtres.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

win.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows = "C:\\Users\\Admin\\AppData\\Local\\Temp\\win.exe"	win.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

win.exe

description	pid	Process	procid_target
PID 3352 set thread context of 2956	3352	win.exe	88

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

win.exe

pid	Process
3352	win.exe
3352	win.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exedw20.exewin.execvtres.exe

description	pid	Process
Token: SeDebugPrivilege	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe
Token: SeRestorePrivilege	5044	dw20.exe
Token: SeBackupPrivilege	5044	dw20.exe
Token: SeDebugPrivilege	3352	win.exe
Token: SeBackupPrivilege	5044	dw20.exe
Token: SeBackupPrivilege	5044	dw20.exe
Token: SeIncreaseQuotaPrivilege	2956	cvtres.exe
Token: SeSecurityPrivilege	2956	cvtres.exe
Token: SeTakeOwnershipPrivilege	2956	cvtres.exe
Token: SeLoadDriverPrivilege	2956	cvtres.exe
Token: SeSystemProfilePrivilege	2956	cvtres.exe
Token: SeSystemtimePrivilege	2956	cvtres.exe
Token: SeProfSingleProcessPrivilege	2956	cvtres.exe
Token: SeIncBasePriorityPrivilege	2956	cvtres.exe
Token: SeCreatePagefilePrivilege	2956	cvtres.exe
Token: SeBackupPrivilege	2956	cvtres.exe
Token: SeRestorePrivilege	2956	cvtres.exe
Token: SeShutdownPrivilege	2956	cvtres.exe
Token: SeDebugPrivilege	2956	cvtres.exe
Token: SeSystemEnvironmentPrivilege	2956	cvtres.exe
Token: SeChangeNotifyPrivilege	2956	cvtres.exe
Token: SeRemoteShutdownPrivilege	2956	cvtres.exe
Token: SeUndockPrivilege	2956	cvtres.exe
Token: SeManageVolumePrivilege	2956	cvtres.exe
Token: SeImpersonatePrivilege	2956	cvtres.exe
Token: SeCreateGlobalPrivilege	2956	cvtres.exe
Token: 33	2956	cvtres.exe
Token: 34	2956	cvtres.exe
Token: 35	2956	cvtres.exe
Token: 36	2956	cvtres.exe
Token: SeDebugPrivilege	3352	win.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

cvtres.exe

pid	Process
2956	cvtres.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exewin.execvtres.exe

description	pid	Process	procid_target
PID 3788 wrote to memory of 3352	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe	85
PID 3788 wrote to memory of 3352	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe	85
PID 3788 wrote to memory of 3352	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe	85
PID 3788 wrote to memory of 5044	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe	86
PID 3788 wrote to memory of 5044	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe	86
PID 3788 wrote to memory of 5044	3788	f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe	86
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 3352 wrote to memory of 2956	3352	win.exe	88
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89
PID 2956 wrote to memory of 2128	2956	cvtres.exe	89

C:\Users\Admin\AppData\Local\Temp\f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f46c01edc415cb7eac960368a1f1e2f2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3788
- C:\Users\Admin\AppData\Local\Temp\win.exe
  "C:\Users\Admin\AppData\Local\Temp\win.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Users\Admin\AppData\Local\Temp\cvtres.exe
    C:\Users\Admin\AppData\Local\Temp\\cvtres.exe
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2956
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      PID:2128
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
  dw20.exe -x -s 1588
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:5044

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\cvtres.exe

Filesize
34KB

MD5
e118330b4629b12368d91b9df6488be0

SHA1
ce90218c7e3b90df2a3409ec253048bb6472c2fd

SHA256
3a0f2936b8c45e8ba3458d69d7859a63844469e698652e15fb56639d32f40cc9

SHA512
ac91c04cb20223dbaaf594440cb778dff36e857921be427c8528ba4c6cdb3e8bf8e71e1ae8af7bde9c04ff5b97b379231625bc1a2b66aba2f98cd340cd8a94b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\win.exe

Filesize
461KB

MD5
21a0d20762a478993864b9752cfafa9e

SHA1
6506bf4e74f215d468e7b458e48587b03cd6c28e

SHA256
3177a9d1e90a26c6c01990b6fbddf8a796af6d49009993990517908f58e30024

SHA512
135f80acebcb2c74ee81996718df83b5a4306b3657b146e011d7b66c85b4970a61270aab590f444785dad5c723da0559ed82a28869c62230ff3e3e53cf80006c

Download Submit
memory/2128-29-0x0000000001240000-0x0000000001241000-memory.dmp

Filesize
4KB

Download
memory/2956-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-28-0x0000000002260000-0x0000000002261000-memory.dmp

Filesize
4KB

Download
memory/2956-49-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-48-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-47-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-46-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-43-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2956-44-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3352-14-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3352-15-0x0000000001730000-0x0000000001740000-memory.dmp

Filesize
64KB

Download
memory/3352-16-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3352-38-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3788-0-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3788-36-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3788-1-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/3788-2-0x0000000001420000-0x0000000001430000-memory.dmp

Filesize
64KB

Download