darkcomet | b64b9397f0213f879597e8b34ed2ea6eabac2a3b64a94546083762df9ad64446

Analysis

max time kernel
141s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11/10/2024, 14:34

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General

Target

354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe
Size

1.6MB
MD5

354d2ae7012225c00f1328c2c51576c2
SHA1

6b3612df62514f276976c1574434b6522ceb8937
SHA256

b64b9397f0213f879597e8b34ed2ea6eabac2a3b64a94546083762df9ad64446
SHA512

0dd01f25431a1a949a4812c5fd8a41da3f8a42b985f60b417b3b90562f7b6050ebd31e6db3059030a74144a789d2f47290855212299de60cd9d91366ee8e400c
SSDEEP

24576:qofkfE7+GSHqOqhpi29tHmAOZ0pw0buHLEdWRZGCxxAz1:Hfks7c8pi27HmAOYw0buHLjZHxU

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

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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
2648	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
780	vbc.exe
780	vbc.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	vbc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2888 set thread context of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2648 set thread context of 2800	2648	msdcsc.exe	33

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	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	780	vbc.exe
Token: SeSecurityPrivilege	780	vbc.exe
Token: SeTakeOwnershipPrivilege	780	vbc.exe
Token: SeLoadDriverPrivilege	780	vbc.exe
Token: SeSystemProfilePrivilege	780	vbc.exe
Token: SeSystemtimePrivilege	780	vbc.exe
Token: SeProfSingleProcessPrivilege	780	vbc.exe
Token: SeIncBasePriorityPrivilege	780	vbc.exe
Token: SeCreatePagefilePrivilege	780	vbc.exe
Token: SeBackupPrivilege	780	vbc.exe
Token: SeRestorePrivilege	780	vbc.exe
Token: SeShutdownPrivilege	780	vbc.exe
Token: SeDebugPrivilege	780	vbc.exe
Token: SeSystemEnvironmentPrivilege	780	vbc.exe
Token: SeChangeNotifyPrivilege	780	vbc.exe
Token: SeRemoteShutdownPrivilege	780	vbc.exe
Token: SeUndockPrivilege	780	vbc.exe
Token: SeManageVolumePrivilege	780	vbc.exe
Token: SeImpersonatePrivilege	780	vbc.exe
Token: SeCreateGlobalPrivilege	780	vbc.exe
Token: 33	780	vbc.exe
Token: 34	780	vbc.exe
Token: 35	780	vbc.exe
Token: SeIncreaseQuotaPrivilege	2800	vbc.exe
Token: SeSecurityPrivilege	2800	vbc.exe
Token: SeTakeOwnershipPrivilege	2800	vbc.exe
Token: SeLoadDriverPrivilege	2800	vbc.exe
Token: SeSystemProfilePrivilege	2800	vbc.exe
Token: SeSystemtimePrivilege	2800	vbc.exe
Token: SeProfSingleProcessPrivilege	2800	vbc.exe
Token: SeIncBasePriorityPrivilege	2800	vbc.exe
Token: SeCreatePagefilePrivilege	2800	vbc.exe
Token: SeBackupPrivilege	2800	vbc.exe
Token: SeRestorePrivilege	2800	vbc.exe
Token: SeShutdownPrivilege	2800	vbc.exe
Token: SeDebugPrivilege	2800	vbc.exe
Token: SeSystemEnvironmentPrivilege	2800	vbc.exe
Token: SeChangeNotifyPrivilege	2800	vbc.exe
Token: SeRemoteShutdownPrivilege	2800	vbc.exe
Token: SeUndockPrivilege	2800	vbc.exe
Token: SeManageVolumePrivilege	2800	vbc.exe
Token: SeImpersonatePrivilege	2800	vbc.exe
Token: SeCreateGlobalPrivilege	2800	vbc.exe
Token: 33	2800	vbc.exe
Token: 34	2800	vbc.exe
Token: 35	2800	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2800	vbc.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 2888 wrote to memory of 780	2888	354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe	31
PID 780 wrote to memory of 2648	780	vbc.exe	32
PID 780 wrote to memory of 2648	780	vbc.exe	32
PID 780 wrote to memory of 2648	780	vbc.exe	32
PID 780 wrote to memory of 2648	780	vbc.exe	32
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33
PID 2648 wrote to memory of 2800	2648	msdcsc.exe	33

C:\Users\Admin\AppData\Local\Temp\354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\354d2ae7012225c00f1328c2c51576c2_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2888
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:780
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2648
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2800

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
1.6MB

MD5
354d2ae7012225c00f1328c2c51576c2

SHA1
6b3612df62514f276976c1574434b6522ceb8937

SHA256
b64b9397f0213f879597e8b34ed2ea6eabac2a3b64a94546083762df9ad64446

SHA512
0dd01f25431a1a949a4812c5fd8a41da3f8a42b985f60b417b3b90562f7b6050ebd31e6db3059030a74144a789d2f47290855212299de60cd9d91366ee8e400c

Download Submit
memory/780-20-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-22-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-3-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-10-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-17-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/780-16-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-15-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/780-12-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-11-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-9-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-8-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-7-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-5-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-23-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/780-37-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2648-68-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download
memory/2648-39-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download
memory/2648-38-0x0000000074BB1000-0x0000000074BB2000-memory.dmp

Filesize
4KB

Download
memory/2648-40-0x0000000074BB0000-0x000000007515B000-memory.dmp

Filesize
5.7MB

Download
memory/2800-67-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2800-64-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2800-65-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2800-60-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2800-66-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2800-69-0x0000000000400000-0x00000000004AF000-memory.dmp

Filesize
700KB

Download
memory/2888-2-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-21-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2888-0-0x0000000074C01000-0x0000000074C02000-memory.dmp

Filesize
4KB

Download
memory/2888-1-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads