darkcomet | c423e6def21e1bbbdb02f85359690453ee7d60ec733b2ff86279f011f01ae3d8

Analysis

max time kernel
150s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-01-2025 05:04

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General

Target

JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Size

756KB
MD5

77c98cc6b0100e96c636bb129b36de80
SHA1

5a3fba86de000a36e00c7d3b94e5dfa0af839760
SHA256

c423e6def21e1bbbdb02f85359690453ee7d60ec733b2ff86279f011f01ae3d8
SHA512

8b90146cc3d9559977a5d7e31794b40655cdb45b99bc6ed230560483ced7636eac50077d60da7babb8434af61ccbd350564d3a4f430277364a36fba523653076
SSDEEP

12288:C9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hrbE:uZ1xuVVjfFoynPaVBUR8f+kN10EBNQ

Score

10^/10

darkcomet darkcomet discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

DarkComet

darkkomet.no-ip.biz:200

Mutex

DC_MUTEX-AFDRAE6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
lxCEbWcfiw3g
install
true
offline_keylogger
true
persistence
true
reg_key
rundll32

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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.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

pid	Process
3112	attrib.exe
3056	attrib.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe

Executes dropped EXE 1 IoCs

pid	Process
4508	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\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 7 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4508	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeSecurityPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeTakeOwnershipPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeLoadDriverPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeSystemProfilePrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeSystemtimePrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeProfSingleProcessPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeIncBasePriorityPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeCreatePagefilePrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeBackupPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeRestorePrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeShutdownPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeDebugPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeSystemEnvironmentPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeChangeNotifyPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeRemoteShutdownPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeUndockPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeManageVolumePrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeImpersonatePrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeCreateGlobalPrivilege	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: 33	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: 34	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: 35	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: 36	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
Token: SeIncreaseQuotaPrivilege	4508	msdcsc.exe
Token: SeSecurityPrivilege	4508	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4508	msdcsc.exe
Token: SeLoadDriverPrivilege	4508	msdcsc.exe
Token: SeSystemProfilePrivilege	4508	msdcsc.exe
Token: SeSystemtimePrivilege	4508	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4508	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4508	msdcsc.exe
Token: SeCreatePagefilePrivilege	4508	msdcsc.exe
Token: SeBackupPrivilege	4508	msdcsc.exe
Token: SeRestorePrivilege	4508	msdcsc.exe
Token: SeShutdownPrivilege	4508	msdcsc.exe
Token: SeDebugPrivilege	4508	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4508	msdcsc.exe
Token: SeChangeNotifyPrivilege	4508	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4508	msdcsc.exe
Token: SeUndockPrivilege	4508	msdcsc.exe
Token: SeManageVolumePrivilege	4508	msdcsc.exe
Token: SeImpersonatePrivilege	4508	msdcsc.exe
Token: SeCreateGlobalPrivilege	4508	msdcsc.exe
Token: 33	4508	msdcsc.exe
Token: 34	4508	msdcsc.exe
Token: 35	4508	msdcsc.exe
Token: 36	4508	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4508	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 2400	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	82
PID 2872 wrote to memory of 2400	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	82
PID 2872 wrote to memory of 2400	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	82
PID 2872 wrote to memory of 4796	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	84
PID 2872 wrote to memory of 4796	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	84
PID 2872 wrote to memory of 4796	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	84
PID 2400 wrote to memory of 3112	2400	cmd.exe	86
PID 2400 wrote to memory of 3112	2400	cmd.exe	86
PID 2400 wrote to memory of 3112	2400	cmd.exe	86
PID 4796 wrote to memory of 3056	4796	cmd.exe	87
PID 4796 wrote to memory of 3056	4796	cmd.exe	87
PID 4796 wrote to memory of 3056	4796	cmd.exe	87
PID 2872 wrote to memory of 4508	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	88
PID 2872 wrote to memory of 4508	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	88
PID 2872 wrote to memory of 4508	2872	JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe	88
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89
PID 4508 wrote to memory of 3896	4508	msdcsc.exe	89

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3112	attrib.exe
3056	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2400
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_77c98cc6b0100e96c636bb129b36de80.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:3112
- 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:4796
- - 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:3056
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4508
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3896

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

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
756KB

MD5
77c98cc6b0100e96c636bb129b36de80

SHA1
5a3fba86de000a36e00c7d3b94e5dfa0af839760

SHA256
c423e6def21e1bbbdb02f85359690453ee7d60ec733b2ff86279f011f01ae3d8

SHA512
8b90146cc3d9559977a5d7e31794b40655cdb45b99bc6ed230560483ced7636eac50077d60da7babb8434af61ccbd350564d3a4f430277364a36fba523653076

Download Submit
memory/2872-63-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/2872-0-0x0000000002820000-0x0000000002821000-memory.dmp

Filesize
4KB

Download
memory/3896-62-0x0000000000A80000-0x0000000000A81000-memory.dmp

Filesize
4KB

Download
memory/4508-69-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-70-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-65-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-66-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-67-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-68-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-61-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/4508-64-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/4508-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-72-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-73-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-74-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-75-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-76-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-77-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4508-78-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads