darkcomet | b917d6ae160624d0a09bf2421302b8332d0564bc67fd7a23237f84387a3ed340

General

Target

digit_by_helkin86-d377w81/DiGiT/DiGiT/Instructions.exe
Size

880KB
MD5

ba480da41b6ec6f00fc0d7caf9f11cb3
SHA1

f924f6baa35057ea88154faed0213c154eadcfa0
SHA256

47256456d9897ef71eb4a944fbde08aa388aabb85645b5b79ba6dc0c9a106124
SHA512

adfa3b2c264d1bcfa82e2d94187a073905cfe55aa08690a1d9e79d9a6a8bc7fe523e49d8bcbd43beec5ab62e26c558e57e7ff72e46d1aa5973fd77d5a39a0b9f
SSDEEP

24576:9+6LCb7OdjFbdRGe9PiuImyEaNCXhgtNz5WhCdSjD4kbQsbq7480/uSUsQ6F:9pnCe9qIeNCqfb4j1bT

Score

10^/10

darkcomet discovery rat trojan

Malware Config

Signatures

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

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	crypted.exe

Executes dropped EXE 2 IoCs

pid	Process
2788	crypted.exe
12164	crypted.exe

Loads dropped DLL 1 IoCs

pid	Process
2788	crypted.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2788 set thread context of 12164	2788	crypted.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 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	crypted.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	crypted.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	crypted.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	crypted.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	crypted.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2708	NOTEPAD.EXE

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	12164	crypted.exe
Token: SeSecurityPrivilege	12164	crypted.exe
Token: SeTakeOwnershipPrivilege	12164	crypted.exe
Token: SeLoadDriverPrivilege	12164	crypted.exe
Token: SeSystemProfilePrivilege	12164	crypted.exe
Token: SeSystemtimePrivilege	12164	crypted.exe
Token: SeProfSingleProcessPrivilege	12164	crypted.exe
Token: SeIncBasePriorityPrivilege	12164	crypted.exe
Token: SeCreatePagefilePrivilege	12164	crypted.exe
Token: SeBackupPrivilege	12164	crypted.exe
Token: SeRestorePrivilege	12164	crypted.exe
Token: SeShutdownPrivilege	12164	crypted.exe
Token: SeDebugPrivilege	12164	crypted.exe
Token: SeSystemEnvironmentPrivilege	12164	crypted.exe
Token: SeChangeNotifyPrivilege	12164	crypted.exe
Token: SeRemoteShutdownPrivilege	12164	crypted.exe
Token: SeUndockPrivilege	12164	crypted.exe
Token: SeManageVolumePrivilege	12164	crypted.exe
Token: SeImpersonatePrivilege	12164	crypted.exe
Token: SeCreateGlobalPrivilege	12164	crypted.exe
Token: 33	12164	crypted.exe
Token: 34	12164	crypted.exe
Token: 35	12164	crypted.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 2788	1668	Instructions.exe	31
PID 1668 wrote to memory of 2788	1668	Instructions.exe	31
PID 1668 wrote to memory of 2788	1668	Instructions.exe	31
PID 1668 wrote to memory of 2788	1668	Instructions.exe	31
PID 1668 wrote to memory of 2708	1668	Instructions.exe	32
PID 1668 wrote to memory of 2708	1668	Instructions.exe	32
PID 1668 wrote to memory of 2708	1668	Instructions.exe	32
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33
PID 2788 wrote to memory of 12164	2788	crypted.exe	33

C:\Users\Admin\AppData\Local\Temp\digit_by_helkin86-d377w81\DiGiT\DiGiT\Instructions.exe
"C:\Users\Admin\AppData\Local\Temp\digit_by_helkin86-d377w81\DiGiT\DiGiT\Instructions.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Users\Admin\AppData\Local\Temp\crypted.exe
  "C:\Users\Admin\AppData\Local\Temp\crypted.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Users\Admin\AppData\Local\Temp\crypted.exe
    "C:\Users\Admin\AppData\Local\Temp\crypted.exe"
    3⤵
    - Checks BIOS information in registry
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:12164
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\Instructions.txt
  2⤵
  - Opens file in notepad (likely ransom note)
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Instructions.txt

Filesize
360B

MD5
036d4adeb724a007fb00011734b5a3e2

SHA1
1d0f70d7b442bee1741702394dcc917cb13c9064

SHA256
e1a0dcf6046381884d91d8e70b48b76548520f2f3fb87391d14b6af0d9609036

SHA512
5d02f692e8ff7927498ef750091da86ae2b85b4f73f7ee29721207b1fb4055c0b47f38333dc0e2eaf7b0bca6a50f0291d68826637d4b7d467965c19866979d2f

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

Filesize
645KB

MD5
d2612794fd2d21874ffb92b2bfef2407

SHA1
a74255beeb2a61ef598dd10fd50f8e1ba25a574b

SHA256
6eb607fa53c977d8fbd3ad8578f574dad83bebd5daf865a04df0a8afb9daee33

SHA512
e0c594217064ac12cc6e780aa4e0b171103d974fbb59113ad9f7763601e24c7f8a91a607dc43179b5e28bab27bf47ee7c16598b1f9569620fc6ef0f83f7accfd

Download Submit
memory/1668-12-0x000007FEF5E10000-0x000007FEF67AD000-memory.dmp

Filesize
9.6MB

Download
memory/1668-9-0x000007FEF5E10000-0x000007FEF67AD000-memory.dmp

Filesize
9.6MB

Download
memory/1668-10-0x000007FEF5E10000-0x000007FEF67AD000-memory.dmp

Filesize
9.6MB

Download
memory/1668-0-0x000007FEF60CE000-0x000007FEF60CF000-memory.dmp

Filesize
4KB

Download
memory/2788-18-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-32-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-14-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-34-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-20-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-30-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-16-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-28-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-38-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-36-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-68-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-72-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-74-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-76-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-70-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download
memory/2788-66-0x00000000005B0000-0x0000000000652000-memory.dmp

Filesize
648KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads