darkcomet | 5d92d079221cc27559e699db67b12bd0ecf9425c722340e1c8717644c5f1cf24

General

Target

JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe
Size

1003KB
MD5

9e503285b627ea4c741a091f08c9bd0a
SHA1

bc0580d85ecb1c1f164d61873f02c0b6806fae77
SHA256

5d92d079221cc27559e699db67b12bd0ecf9425c722340e1c8717644c5f1cf24
SHA512

164c8e3185d20a39335f8afaf47ef9955d57f46c856221096c185fd9cee3e18959c1e19057005b8b29675055167441d99142a108a707aa9d0351f8e7ff9f47c2
SSDEEP

24576:Fjo0HWLwdVWFkFIfP926yG0RL0ZzK1xdg6:FjoeWs+bd2IRK1xdg

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
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\drivers\\acpi.exe"	vbc.exe

Drops file in Drivers directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\drivers\acpi.exe	vbc.exe
File opened for modification	C:\Windows\SysWOW64\drivers\acpi.exe	vbc.exe
File opened for modification	C:\Windows\system32\drivers\etc\hosts	vbc.exe
File opened for modification	C:\Windows\SysWOW64\drivers\	vbc.exe

Executes dropped EXE 2 IoCs

pid	Process
2788	vbc.exe
1080	acpi.exe

Loads dropped DLL 2 IoCs

pid	Process
1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe
2788	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\GoogleUpdate = "C:\\Windows\\system32\\drivers\\acpi.exe"	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdtr = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdtr\\JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe"	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1876 set thread context of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30

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 6 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	DllHost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acpi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2980	cmd.exe
3008	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3008	PING.EXE

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2788	vbc.exe
Token: SeSecurityPrivilege	2788	vbc.exe
Token: SeTakeOwnershipPrivilege	2788	vbc.exe
Token: SeLoadDriverPrivilege	2788	vbc.exe
Token: SeSystemProfilePrivilege	2788	vbc.exe
Token: SeSystemtimePrivilege	2788	vbc.exe
Token: SeProfSingleProcessPrivilege	2788	vbc.exe
Token: SeIncBasePriorityPrivilege	2788	vbc.exe
Token: SeCreatePagefilePrivilege	2788	vbc.exe
Token: SeBackupPrivilege	2788	vbc.exe
Token: SeRestorePrivilege	2788	vbc.exe
Token: SeShutdownPrivilege	2788	vbc.exe
Token: SeDebugPrivilege	2788	vbc.exe
Token: SeSystemEnvironmentPrivilege	2788	vbc.exe
Token: SeChangeNotifyPrivilege	2788	vbc.exe
Token: SeRemoteShutdownPrivilege	2788	vbc.exe
Token: SeUndockPrivilege	2788	vbc.exe
Token: SeManageVolumePrivilege	2788	vbc.exe
Token: SeImpersonatePrivilege	2788	vbc.exe
Token: SeCreateGlobalPrivilege	2788	vbc.exe
Token: 33	2788	vbc.exe
Token: 34	2788	vbc.exe
Token: 35	2788	vbc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2588	DllHost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2588	DllHost.exe
2588	DllHost.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 1876 wrote to memory of 2788	1876	JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe	30
PID 2788 wrote to memory of 2980	2788	vbc.exe	32
PID 2788 wrote to memory of 2980	2788	vbc.exe	32
PID 2788 wrote to memory of 2980	2788	vbc.exe	32
PID 2788 wrote to memory of 2980	2788	vbc.exe	32
PID 2980 wrote to memory of 3008	2980	cmd.exe	34
PID 2980 wrote to memory of 3008	2980	cmd.exe	34
PID 2980 wrote to memory of 3008	2980	cmd.exe	34
PID 2980 wrote to memory of 3008	2980	cmd.exe	34
PID 2788 wrote to memory of 1080	2788	vbc.exe	35
PID 2788 wrote to memory of 1080	2788	vbc.exe	35
PID 2788 wrote to memory of 1080	2788	vbc.exe	35
PID 2788 wrote to memory of 1080	2788	vbc.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9e503285b627ea4c741a091f08c9bd0a.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1876
- C:\Users\Admin\AppData\Local\Temp\vbc.exe
  C:\Users\Admin\AppData\Local\Temp\vbc.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\vbc.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2980
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 4
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:3008
- - C:\Windows\SysWOW64\drivers\acpi.exe
    "C:\Windows\system32\drivers\acpi.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1080

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:2588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\VALENTINA.JPG

Filesize
72KB

MD5
61467cbd79232bf0c37bf346c5436365

SHA1
22a54a2caef559615f2d5c44d80eb0b832bceb03

SHA256
67b2a2e209c73204533275daa866c45553a7ed2eeffa5c28bc0df01dc5498150

SHA512
324d012decc7ae7610b701434cdc4098ec1eda2cdc9d5c681a0ab552684ec2f58a81f2b760770968c2e9f459f018ee19bd6eef32cfa10c1f561a81e5eced1ecf

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

Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1876-31-0x0000000074970000-0x0000000074F1B000-memory.dmp

Filesize
5.7MB

Download
memory/1876-1-0x0000000074970000-0x0000000074F1B000-memory.dmp

Filesize
5.7MB

Download
memory/1876-2-0x0000000074970000-0x0000000074F1B000-memory.dmp

Filesize
5.7MB

Download
memory/1876-0-0x0000000074971000-0x0000000074972000-memory.dmp

Filesize
4KB

Download
memory/2588-40-0x0000000000120000-0x0000000000122000-memory.dmp

Filesize
8KB

Download
memory/2788-29-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-30-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-19-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-15-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-13-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-9-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-21-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2788-32-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-33-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-11-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-39-0x0000000002550000-0x0000000002552000-memory.dmp

Filesize
8KB

Download
memory/2788-27-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-23-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/2788-49-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads