darkcomet | 3e2c839c79e413ed87a779b09fa42276c0375972b8c6f8eafa7013e04126675e

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-01-2025 22:05

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General

Target

JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Size

756KB
MD5

25c89e1e3471b44531eb12561cc6f892
SHA1

d57b33f7f99ceb1c52d3da3f02ddf30ddaa60ffb
SHA256

3e2c839c79e413ed87a779b09fa42276c0375972b8c6f8eafa7013e04126675e
SHA512

04943bf114cb827b026f1915f04d6ff82104c127eb769903062e9c085eea61721bfc8f82f5a6780435bf0cbaebf692d0caf71025084a47d73b48bd1a46642980
SSDEEP

12288:I9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/heGq:8Z1xuVVjfFoynPaVBUR8f+kN10EB9q

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

pyrllo.no-ip.org:1604

Mutex

DC_MUTEX-PFPMD29

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
SwWeq014KJs6
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
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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Executes dropped EXE 1 IoCs

pid	Process
1984	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe

Windows security modification 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.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 2 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_25c89e1e3471b44531eb12561cc6f892.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1984	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeSecurityPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeTakeOwnershipPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeLoadDriverPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeSystemProfilePrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeSystemtimePrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeProfSingleProcessPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeIncBasePriorityPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeCreatePagefilePrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeBackupPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeRestorePrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeShutdownPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeDebugPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeSystemEnvironmentPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeChangeNotifyPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeRemoteShutdownPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeUndockPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeManageVolumePrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeImpersonatePrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeCreateGlobalPrivilege	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: 33	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: 34	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: 35	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
Token: SeIncreaseQuotaPrivilege	1984	msdcsc.exe
Token: SeSecurityPrivilege	1984	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1984	msdcsc.exe
Token: SeLoadDriverPrivilege	1984	msdcsc.exe
Token: SeSystemProfilePrivilege	1984	msdcsc.exe
Token: SeSystemtimePrivilege	1984	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1984	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1984	msdcsc.exe
Token: SeCreatePagefilePrivilege	1984	msdcsc.exe
Token: SeBackupPrivilege	1984	msdcsc.exe
Token: SeRestorePrivilege	1984	msdcsc.exe
Token: SeShutdownPrivilege	1984	msdcsc.exe
Token: SeDebugPrivilege	1984	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1984	msdcsc.exe
Token: SeChangeNotifyPrivilege	1984	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1984	msdcsc.exe
Token: SeUndockPrivilege	1984	msdcsc.exe
Token: SeManageVolumePrivilege	1984	msdcsc.exe
Token: SeImpersonatePrivilege	1984	msdcsc.exe
Token: SeCreateGlobalPrivilege	1984	msdcsc.exe
Token: 33	1984	msdcsc.exe
Token: 34	1984	msdcsc.exe
Token: 35	1984	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1984	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1992 wrote to memory of 1984	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe	30
PID 1992 wrote to memory of 1984	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe	30
PID 1992 wrote to memory of 1984	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe	30
PID 1992 wrote to memory of 1984	1992	JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_25c89e1e3471b44531eb12561cc6f892.exe"
1⤵
- 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:1992
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1984

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

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

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
756KB

MD5
25c89e1e3471b44531eb12561cc6f892

SHA1
d57b33f7f99ceb1c52d3da3f02ddf30ddaa60ffb

SHA256
3e2c839c79e413ed87a779b09fa42276c0375972b8c6f8eafa7013e04126675e

SHA512
04943bf114cb827b026f1915f04d6ff82104c127eb769903062e9c085eea61721bfc8f82f5a6780435bf0cbaebf692d0caf71025084a47d73b48bd1a46642980

Download Submit
memory/1984-19-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-18-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-14-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-15-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-20-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-17-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-27-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-26-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-16-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-21-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-22-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-23-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-24-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1984-25-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1992-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1992-13-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads