darkcomet | 38b24b56e1667c0c223b7c4a86845808a8eeced169eb8d9de86a68c74a09c9de

General

Target

JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe
Size

1.2MB
MD5

354bebb6ca65b5a9ce3ca38cd550a6ad
SHA1

973e218f6781b8b11c70c12d8f0a5fbb746880de
SHA256

38b24b56e1667c0c223b7c4a86845808a8eeced169eb8d9de86a68c74a09c9de
SHA512

3960c074d3a0b304fabb793b2ca8921e7004fb841c71094f0faf9838c06728a3db7a8d47e01a1b97731852b16bbcf43c92bc41d7e68fea7aaa70ef1bb8390c2c
SSDEEP

24576:T5Xl0JEQeEouJIauCVtS2NE/obVox/zZQDQ1mB:H4lhJVucI8CGVGZQDemB

Score

10^/10

darkcomet discovery rat trojan

Malware Config

Extracted

Family

darkcomet

Mutex

DC_MUTEX-F54S21D

Attributes

gencode
install
false
offline_keylogger
true
persistence
false

rc4.plain

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
2336	vbc.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\	vbc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2244 set thread context of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31

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_354bebb6ca65b5a9ce3ca38cd550a6ad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2336	vbc.exe
Token: SeSecurityPrivilege	2336	vbc.exe
Token: SeTakeOwnershipPrivilege	2336	vbc.exe
Token: SeLoadDriverPrivilege	2336	vbc.exe
Token: SeSystemProfilePrivilege	2336	vbc.exe
Token: SeSystemtimePrivilege	2336	vbc.exe
Token: SeProfSingleProcessPrivilege	2336	vbc.exe
Token: SeIncBasePriorityPrivilege	2336	vbc.exe
Token: SeCreatePagefilePrivilege	2336	vbc.exe
Token: SeBackupPrivilege	2336	vbc.exe
Token: SeRestorePrivilege	2336	vbc.exe
Token: SeShutdownPrivilege	2336	vbc.exe
Token: SeDebugPrivilege	2336	vbc.exe
Token: SeSystemEnvironmentPrivilege	2336	vbc.exe
Token: SeChangeNotifyPrivilege	2336	vbc.exe
Token: SeRemoteShutdownPrivilege	2336	vbc.exe
Token: SeUndockPrivilege	2336	vbc.exe
Token: SeManageVolumePrivilege	2336	vbc.exe
Token: SeImpersonatePrivilege	2336	vbc.exe
Token: SeCreateGlobalPrivilege	2336	vbc.exe
Token: 33	2336	vbc.exe
Token: 34	2336	vbc.exe
Token: 35	2336	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2336	vbc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31
PID 2244 wrote to memory of 2336	2244	JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe	31

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_354bebb6ca65b5a9ce3ca38cd550a6ad.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Executes dropped EXE
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2336

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

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

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/2244-0-0x0000000074C01000-0x0000000074C02000-memory.dmp

Filesize
4KB

Download
memory/2244-1-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2244-2-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2244-25-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2336-13-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-11-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-20-0x0000000000010000-0x0000000000011000-memory.dmp

Filesize
4KB

Download
memory/2336-18-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2336-15-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-14-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-9-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-12-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-23-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-24-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-10-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-7-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-26-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2336-29-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-28-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-27-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-30-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download
memory/2336-40-0x0000000000400000-0x00000000004CC000-memory.dmp

Filesize
816KB

Download

Analysis

Sharing