darkcomet | 87aa2cf346fb9887859ebc03d78a666328d6b9bd770962b90b1f26d2dde6873e

General

Target

JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Size

1.9MB
MD5

21818bc6b6c98bacce21df10e72f4d0a
SHA1

5fac843dc5ce8b48262ca030ce01463d80824184
SHA256

87aa2cf346fb9887859ebc03d78a666328d6b9bd770962b90b1f26d2dde6873e
SHA512

de94439dff54d40799828544718be45ec39f26f1c3c2479700814c5fbba59db91b9ae22be9c96bfddb2221419347c9802f3951f6c0e391f5104f5f3056680b8d
SSDEEP

24576:T5xiSRahhgz/Wwo6rWXaNolQmISumq8guPKp/hvVsAz8kyGSdyyKZlujrJqsWCJT:T9WQWqNoEpVhpmLhrHLzdNu8V

Score

10^/10

darkcomet discovery rat trojan

Malware Config

Extracted

Family

darkcomet

Attributes

gencode
install
false
offline_keylogger
false
persistence
false

rc4.plain

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-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe

Executes dropped EXE 1 IoCs

pid	Process
2844	svchost.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4648 set thread context of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
File created	C:\Windows\assembly\Desktop.ini	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.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	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Token: 33	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Token: SeIncBasePriorityPrivilege	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Token: 33	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Token: SeIncBasePriorityPrivilege	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Token: 33	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
Token: SeIncBasePriorityPrivilege	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89
PID 4648 wrote to memory of 2844	4648	JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_21818bc6b6c98bacce21df10e72f4d0a.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\WoWEmuHacker5.exe

Filesize
264KB

MD5
5e656e0f55cb7072f3465a5e185d58e7

SHA1
e1f30138d16cb9e5cab87b4f5722cf555f76ec45

SHA256
9e72311e9c10ca39eb95a8de9d9d4186d825e3176521bbf52b940fdc8938f61a

SHA512
1172ddf5e96d6ea8e353ac556de7b5e695872b5a8a40fe29b50afa9b2ba710903312f3ffc416b6f40f1bb9a456870691b06eaa1ccb8ccddd27048dd2e9fac841

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

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/2844-8-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/2844-11-0x0000000000400000-0x00000000004A4000-memory.dmp

Filesize
656KB

Download
memory/2844-13-0x0000000000400000-0x00000000004A3F00-memory.dmp

Filesize
655KB

Download
memory/4648-0-0x0000000075562000-0x0000000075563000-memory.dmp

Filesize
4KB

Download
memory/4648-2-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/4648-1-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/4648-21-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/4648-22-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/4648-23-0x0000000075562000-0x0000000075563000-memory.dmp

Filesize
4KB

Download
memory/4648-24-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download
memory/4648-25-0x0000000075560000-0x0000000075B11000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing