darkcomet | 2d5520b0909d39d9cf10dcba82faf447b690bbbba82fc03ecce6f232a634b571

General

Target

c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe
Size

1003KB
MD5

c55453a57b4f41620bb50d002f50e341
SHA1

25faa045341a77ebdc36b2f99589291dc20046f0
SHA256

2d5520b0909d39d9cf10dcba82faf447b690bbbba82fc03ecce6f232a634b571
SHA512

d9aad5d2ccfa983fab1b929e0329744bc7e135b38230bf47a870e05336fa72e81a2f905fb9ab522dbfb11fffe19433aa3394c7ba3eaaa99abd2d58ce53638ba7
SSDEEP

24576:mja0HWLwdVWFkFIfP926yG0RL0ZzK1xK0NY:mjaeWs+bd2IRK1xK0

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

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

Executes dropped EXE 1 IoCs

Processes:

vbc.exe

pid	Process
4688	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe"	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exevbc.exe

description	pid	Process	procid_target
PID 4948 set thread context of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4688 set thread context of 4588	4688	vbc.exe	86

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

Processes:

c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exevbc.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

vbc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4688	vbc.exe
Token: SeSecurityPrivilege	4688	vbc.exe
Token: SeTakeOwnershipPrivilege	4688	vbc.exe
Token: SeLoadDriverPrivilege	4688	vbc.exe
Token: SeSystemProfilePrivilege	4688	vbc.exe
Token: SeSystemtimePrivilege	4688	vbc.exe
Token: SeProfSingleProcessPrivilege	4688	vbc.exe
Token: SeIncBasePriorityPrivilege	4688	vbc.exe
Token: SeCreatePagefilePrivilege	4688	vbc.exe
Token: SeBackupPrivilege	4688	vbc.exe
Token: SeRestorePrivilege	4688	vbc.exe
Token: SeShutdownPrivilege	4688	vbc.exe
Token: SeDebugPrivilege	4688	vbc.exe
Token: SeSystemEnvironmentPrivilege	4688	vbc.exe
Token: SeChangeNotifyPrivilege	4688	vbc.exe
Token: SeRemoteShutdownPrivilege	4688	vbc.exe
Token: SeUndockPrivilege	4688	vbc.exe
Token: SeManageVolumePrivilege	4688	vbc.exe
Token: SeImpersonatePrivilege	4688	vbc.exe
Token: SeCreateGlobalPrivilege	4688	vbc.exe
Token: 33	4688	vbc.exe
Token: 34	4688	vbc.exe
Token: 35	4688	vbc.exe
Token: 36	4688	vbc.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exevbc.exe

description	pid	Process	procid_target
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4948 wrote to memory of 4688	4948	c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe	85
PID 4688 wrote to memory of 4588	4688	vbc.exe	86
PID 4688 wrote to memory of 4588	4688	vbc.exe	86
PID 4688 wrote to memory of 4588	4688	vbc.exe	86
PID 4688 wrote to memory of 4588	4688	vbc.exe	86
PID 4688 wrote to memory of 4588	4688	vbc.exe	86

C:\Users\Admin\AppData\Local\Temp\c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c55453a57b4f41620bb50d002f50e341_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4948
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4688
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:4588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

1

T1064

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
1.1MB

MD5
d881de17aa8f2e2c08cbb7b265f928f9

SHA1
08936aebc87decf0af6e8eada191062b5e65ac2a

SHA256
b3a37093609f9a20ad60b85a9fa9de2ba674cba9b5bd687729440c70ba619ca0

SHA512
5f23bfb1b8740247b36ed0ab741738c7d4c949736129e767213e321607d1ccd3e3a8428e4ba44bd28a275b5e3f6206285b1a522514b7ef7ea5e698d90a713d34

Download Submit
memory/4588-17-0x0000000000400000-0x000000000051F000-memory.dmp

Filesize
1.1MB

Download
memory/4688-7-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4688-10-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4688-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4688-16-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/4688-14-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4688-18-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/4948-0-0x0000000074EA2000-0x0000000074EA3000-memory.dmp

Filesize
4KB

Download
memory/4948-1-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4948-2-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download
memory/4948-15-0x0000000074EA0000-0x0000000075451000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads