darkcomet | fb29ae21d3f271f495910d64c472a441da768020c7899905a56480a0c1c5cf8d

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15-10-2024 02:32

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General

Target

4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Size

758KB
MD5

4564fe3b9e93dfb3ba38c197125dabda
SHA1

e8f3ac2006acc773dd4d66d2cd62bbee7389ac2d
SHA256

fb29ae21d3f271f495910d64c472a441da768020c7899905a56480a0c1c5cf8d
SHA512

3681a3090f5d73268462f27d97697bd9598216d1320616f7184219a6212ae7f071765ef374bfac039bcf69019712024acec96f69ad819804ba5ca0d8cc936af3
SSDEEP

12288:+XhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Up:gnAw2WWeFcfbP9VPSPMTSPL/rWvzq4J5

Score

10^/10

darkcomet hp discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

youngmomi.servemp3.com:1604

Mutex

DC_MUTEX-9G7UWDF

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
puTVGGfMmnsa
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:

4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe

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"	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

msdcsc.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exe

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

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
1996	attrib.exe
2924	attrib.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
3008	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe

pid	Process
2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exe

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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exemsdcsc.exe

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"	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
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"	msdcsc.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 6 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

Processes:

attrib.exemsdcsc.exe4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.execmd.execmd.exeattrib.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeSecurityPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeBackupPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeRestorePrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeShutdownPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeDebugPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeUndockPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: 33	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: 34	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: 35	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3008	msdcsc.exe
Token: SeSecurityPrivilege	3008	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3008	msdcsc.exe
Token: SeLoadDriverPrivilege	3008	msdcsc.exe
Token: SeSystemProfilePrivilege	3008	msdcsc.exe
Token: SeSystemtimePrivilege	3008	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3008	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3008	msdcsc.exe
Token: SeCreatePagefilePrivilege	3008	msdcsc.exe
Token: SeBackupPrivilege	3008	msdcsc.exe
Token: SeRestorePrivilege	3008	msdcsc.exe
Token: SeShutdownPrivilege	3008	msdcsc.exe
Token: SeDebugPrivilege	3008	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3008	msdcsc.exe
Token: SeChangeNotifyPrivilege	3008	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3008	msdcsc.exe
Token: SeUndockPrivilege	3008	msdcsc.exe
Token: SeManageVolumePrivilege	3008	msdcsc.exe
Token: SeImpersonatePrivilege	3008	msdcsc.exe
Token: SeCreateGlobalPrivilege	3008	msdcsc.exe
Token: 33	3008	msdcsc.exe
Token: 34	3008	msdcsc.exe
Token: 35	3008	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
3008	msdcsc.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.execmd.execmd.exe

description	pid	Process	procid_target
PID 2504 wrote to memory of 1728	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	31
PID 2504 wrote to memory of 1728	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	31
PID 2504 wrote to memory of 1728	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	31
PID 2504 wrote to memory of 1728	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	31
PID 2504 wrote to memory of 2348	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	33
PID 2504 wrote to memory of 2348	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	33
PID 2504 wrote to memory of 2348	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	33
PID 2504 wrote to memory of 2348	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	33
PID 1728 wrote to memory of 1996	1728	cmd.exe	35
PID 1728 wrote to memory of 1996	1728	cmd.exe	35
PID 1728 wrote to memory of 1996	1728	cmd.exe	35
PID 1728 wrote to memory of 1996	1728	cmd.exe	35
PID 2348 wrote to memory of 2924	2348	cmd.exe	36
PID 2348 wrote to memory of 2924	2348	cmd.exe	36
PID 2348 wrote to memory of 2924	2348	cmd.exe	36
PID 2348 wrote to memory of 2924	2348	cmd.exe	36
PID 2504 wrote to memory of 3008	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	37
PID 2504 wrote to memory of 3008	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	37
PID 2504 wrote to memory of 3008	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	37
PID 2504 wrote to memory of 3008	2504	4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe	37

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

Processes:

attrib.exeattrib.exe

pid	Process
1996	attrib.exe
2924	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.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:2504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1728
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\4564fe3b9e93dfb3ba38c197125dabda_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1996
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2924
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:3008

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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
758KB

MD5
4564fe3b9e93dfb3ba38c197125dabda

SHA1
e8f3ac2006acc773dd4d66d2cd62bbee7389ac2d

SHA256
fb29ae21d3f271f495910d64c472a441da768020c7899905a56480a0c1c5cf8d

SHA512
3681a3090f5d73268462f27d97697bd9598216d1320616f7184219a6212ae7f071765ef374bfac039bcf69019712024acec96f69ad819804ba5ca0d8cc936af3

Download Submit
memory/2504-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2504-12-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-18-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-20-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-15-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-17-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-13-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-19-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-14-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-21-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-22-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-23-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-24-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-25-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3008-26-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download