darkcomet | 44e1eb2997acbbd1e0bb53d9bf2a0aa7d63224b35d4a81552de758114fecfd8f

General

Target

JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Size

625KB
MD5

a3d475b69c46eca0d36fa40ab78d9779
SHA1

c1c9343fc8d1198e9d3b8995158d20992a1414cf
SHA256

44e1eb2997acbbd1e0bb53d9bf2a0aa7d63224b35d4a81552de758114fecfd8f
SHA512

075b9241f92e86e58782677a614f407ec824bd6c0f45948f808335094fc77fad9703f3048a5e0401e5f22d5fccf581dccece5bcb0ab58525593ed3685d7eece8
SSDEEP

12288:D6A84PaHhfD/tV9sj5NKR0pau9XGyu2qBVGLQyTPfhF:GAmBpVKHu0Mu9Xo20VGLVP5F

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\\explorer.exe"	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe

Deletes itself 1 IoCs

pid	Process
2832	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2740	explorer.exe

Loads dropped DLL 1 IoCs

pid	Process
2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\explorer.exe"	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\explorer.exe	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
File opened for modification	C:\Windows\SysWOW64\explorer.exe	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
File opened for modification	C:\Windows\SysWOW64\	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.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 4 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_a3d475b69c46eca0d36fa40ab78d9779.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
2832	cmd.exe
2796	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2796	PING.EXE

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeSecurityPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeTakeOwnershipPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeLoadDriverPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeSystemProfilePrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeSystemtimePrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeProfSingleProcessPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeIncBasePriorityPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeCreatePagefilePrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeBackupPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeRestorePrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeShutdownPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeDebugPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeSystemEnvironmentPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeChangeNotifyPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeRemoteShutdownPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeUndockPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeManageVolumePrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeImpersonatePrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: SeCreateGlobalPrivilege	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: 33	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: 34	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
Token: 35	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 2740	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	30
PID 2868 wrote to memory of 2740	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	30
PID 2868 wrote to memory of 2740	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	30
PID 2868 wrote to memory of 2740	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	30
PID 2868 wrote to memory of 2832	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	31
PID 2868 wrote to memory of 2832	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	31
PID 2868 wrote to memory of 2832	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	31
PID 2868 wrote to memory of 2832	2868	JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe	31
PID 2832 wrote to memory of 2796	2832	cmd.exe	33
PID 2832 wrote to memory of 2796	2832	cmd.exe	33
PID 2832 wrote to memory of 2796	2832	cmd.exe	33
PID 2832 wrote to memory of 2796	2832	cmd.exe	33

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\system32\explorer.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a3d475b69c46eca0d36fa40ab78d9779.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2832
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 5
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

\Windows\SysWOW64\explorer.exe

Filesize
2.5MB

MD5
40d777b7a95e00593eb1568c68514493

SHA1
89a175a12bc20104770d0ef83e553f8b0e06274b

SHA256
0a8ce026714e03e72c619307bd598add5f9b639cfd91437cb8d9c847bf9f6894

SHA512
d5719baef8bef791ef99b4c88d449d45f199638438bd929c1a3e7a74309931c72e03567633135a4fcf4c92e2b53e552f9526cba2e1d85383906d3c1aa21dd67f

Download Submit
memory/2868-0-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2868-1-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/2868-4-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads