darkcomet | 50eead865b8c7f1340eed849b3b4cedaa1285e1d2e398f88b79de416b94b5ddd

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
16-04-2024 11:08

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General

Target

f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Size

658KB
MD5

f35cec3eacc50d65da694d4a78915a23
SHA1

c9e64bf495a16056b9b4d84b13e7cf662580f0d2
SHA256

50eead865b8c7f1340eed849b3b4cedaa1285e1d2e398f88b79de416b94b5ddd
SHA512

a2bf10ac563130d2eaaf7f28b6b9d3ff4add702fe475fa2d54c66f64afd1d0dabe2b8c7522c28d4f1b1a34df46dd43b194bcefd2350fd244635761de889d20b5
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLd9Ek5C/hU:+Z1xuVVjfFoynPaVBUR8f+kN1PEBq

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

ersg2013.zapto.org:28

Mutex

DC_MUTEX-GY2H3ER

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
52QzXvZVaWLU
install
true
offline_keylogger
true
persistence
true
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:

f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\MSDCSC\\msdcsc.exe"	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
1856	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe

pid	Process
3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2248906074-2862704502-246302768-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeSecurityPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeBackupPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeRestorePrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeShutdownPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeDebugPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeUndockPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: 33	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: 34	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: 35	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1856	msdcsc.exe
Token: SeSecurityPrivilege	1856	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1856	msdcsc.exe
Token: SeLoadDriverPrivilege	1856	msdcsc.exe
Token: SeSystemProfilePrivilege	1856	msdcsc.exe
Token: SeSystemtimePrivilege	1856	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1856	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1856	msdcsc.exe
Token: SeCreatePagefilePrivilege	1856	msdcsc.exe
Token: SeBackupPrivilege	1856	msdcsc.exe
Token: SeRestorePrivilege	1856	msdcsc.exe
Token: SeShutdownPrivilege	1856	msdcsc.exe
Token: SeDebugPrivilege	1856	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1856	msdcsc.exe
Token: SeChangeNotifyPrivilege	1856	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1856	msdcsc.exe
Token: SeUndockPrivilege	1856	msdcsc.exe
Token: SeManageVolumePrivilege	1856	msdcsc.exe
Token: SeImpersonatePrivilege	1856	msdcsc.exe
Token: SeCreateGlobalPrivilege	1856	msdcsc.exe
Token: 33	1856	msdcsc.exe
Token: 34	1856	msdcsc.exe
Token: 35	1856	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
1856	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe

description	pid	Process	procid_target
PID 3028 wrote to memory of 1856	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe	28
PID 3028 wrote to memory of 1856	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe	28
PID 3028 wrote to memory of 1856	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe	28
PID 3028 wrote to memory of 1856	3028	f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe	28

C:\Users\Admin\AppData\Local\Temp\f35cec3eacc50d65da694d4a78915a23_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f35cec3eacc50d65da694d4a78915a23_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:3028
- C:\MSDCSC\msdcsc.exe
  "C:\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1856

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

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

\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
f35cec3eacc50d65da694d4a78915a23

SHA1
c9e64bf495a16056b9b4d84b13e7cf662580f0d2

SHA256
50eead865b8c7f1340eed849b3b4cedaa1285e1d2e398f88b79de416b94b5ddd

SHA512
a2bf10ac563130d2eaaf7f28b6b9d3ff4add702fe475fa2d54c66f64afd1d0dabe2b8c7522c28d4f1b1a34df46dd43b194bcefd2350fd244635761de889d20b5

Download Submit
memory/1856-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-17-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-21-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-11-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1856-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1856-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3028-0-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/3028-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download