darkcomet | 3f6e94af8a5d5a6690dc15e70fbb92b9c7799c9143d9ee1dac6a4cc0f3b1da7f

Analysis

max time kernel
151s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 22:11

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General

Target

f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Size

658KB
MD5

f6ae1759275f7ae83110cb1c907a7c8d
SHA1

8b5434e0250bd32da36c5a2b1b1d408fcee28b56
SHA256

3f6e94af8a5d5a6690dc15e70fbb92b9c7799c9143d9ee1dac6a4cc0f3b1da7f
SHA512

314248c64797f599cc29c2e554b2985360fbfdb910550b7eb10e818ef4c74aa5cc68657932a27a5c1266da55eb21f736e2faa3188e0b3b5313f6f2936c725d6c
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hL:KZ1xuVVjfFoynPaVBUR8f+kN10EBd

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-8RF1JQC

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Ci3Ce0taJNxs
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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

Processes:

f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2604	attrib.exe
2652	attrib.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2520	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe

pid	Process
2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2461186416-2307104501-1787948496-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\MSDCSC\\msdcsc.exe"	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
2520	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeSecurityPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeBackupPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeRestorePrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeShutdownPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeDebugPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeUndockPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: 33	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: 34	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: 35	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2520	msdcsc.exe
Token: SeSecurityPrivilege	2520	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2520	msdcsc.exe
Token: SeLoadDriverPrivilege	2520	msdcsc.exe
Token: SeSystemProfilePrivilege	2520	msdcsc.exe
Token: SeSystemtimePrivilege	2520	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2520	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2520	msdcsc.exe
Token: SeCreatePagefilePrivilege	2520	msdcsc.exe
Token: SeBackupPrivilege	2520	msdcsc.exe
Token: SeRestorePrivilege	2520	msdcsc.exe
Token: SeShutdownPrivilege	2520	msdcsc.exe
Token: SeDebugPrivilege	2520	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2520	msdcsc.exe
Token: SeChangeNotifyPrivilege	2520	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2520	msdcsc.exe
Token: SeUndockPrivilege	2520	msdcsc.exe
Token: SeManageVolumePrivilege	2520	msdcsc.exe
Token: SeImpersonatePrivilege	2520	msdcsc.exe
Token: SeCreateGlobalPrivilege	2520	msdcsc.exe
Token: 33	2520	msdcsc.exe
Token: 34	2520	msdcsc.exe
Token: 35	2520	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
2520	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.execmd.execmd.exemsdcsc.exe

description	pid	Process	procid_target
PID 2184 wrote to memory of 2572	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2572	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2572	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2572	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	28
PID 2184 wrote to memory of 2916	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	29
PID 2184 wrote to memory of 2916	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	29
PID 2184 wrote to memory of 2916	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	29
PID 2184 wrote to memory of 2916	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	29
PID 2184 wrote to memory of 2520	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	32
PID 2184 wrote to memory of 2520	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	32
PID 2184 wrote to memory of 2520	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	32
PID 2184 wrote to memory of 2520	2184	f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe	32
PID 2572 wrote to memory of 2604	2572	cmd.exe	33
PID 2572 wrote to memory of 2604	2572	cmd.exe	33
PID 2572 wrote to memory of 2604	2572	cmd.exe	33
PID 2572 wrote to memory of 2604	2572	cmd.exe	33
PID 2916 wrote to memory of 2652	2916	cmd.exe	34
PID 2916 wrote to memory of 2652	2916	cmd.exe	34
PID 2916 wrote to memory of 2652	2916	cmd.exe	34
PID 2916 wrote to memory of 2652	2916	cmd.exe	34
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35
PID 2520 wrote to memory of 2684	2520	msdcsc.exe	35

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
2604	attrib.exe
2652	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\f6ae1759275f7ae83110cb1c907a7c8d_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:2652
- C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe"
  2⤵
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2520
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:2684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\ProgramData\Microsoft\Windows\Start Menu\Programs\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
f6ae1759275f7ae83110cb1c907a7c8d

SHA1
8b5434e0250bd32da36c5a2b1b1d408fcee28b56

SHA256
3f6e94af8a5d5a6690dc15e70fbb92b9c7799c9143d9ee1dac6a4cc0f3b1da7f

SHA512
314248c64797f599cc29c2e554b2985360fbfdb910550b7eb10e818ef4c74aa5cc68657932a27a5c1266da55eb21f736e2faa3188e0b3b5313f6f2936c725d6c

Download Submit
memory/2184-42-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2184-0-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2520-49-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-47-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-55-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-43-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-44-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-45-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-46-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-53-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-48-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-11-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2520-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-51-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2520-52-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2684-41-0x00000000002C0000-0x00000000002C1000-memory.dmp

Filesize
4KB

Download
memory/2684-13-0x0000000000100000-0x0000000000101000-memory.dmp

Filesize
4KB

Download