darkcomet | f388fa32e08efa8d9e6225e525b8139f8310fae9bdc4d8bd7118d0cb6333ee60

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-12-2024 16:13

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General

Target

b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Size

658KB
MD5

b914850eafbba9504aaf7e67869db6b3
SHA1

ed69e6b955cdccf38969da227afa9a7f5e6eeb7c
SHA256

f388fa32e08efa8d9e6225e525b8139f8310fae9bdc4d8bd7118d0cb6333ee60
SHA512

76822f95bc109294d5a2dbe7bdb316623ea10a9ae41fc6530fe45e9f5d7067ed7b4202ab572a6905b383cd05612f954696115030640cc8430988d726ea1eed6d
SSDEEP

12288:e9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hK:qZ1xuVVjfFoynPaVBUR8f+kN10EBA

Score

10^/10

darkcomet dark discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

dark

mido55.no-ip.org:1178

Mutex

DC_MUTEX-KBTL6GG

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
CCArAs9RNT1c
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"	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.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
3136	attrib.exe
1652	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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3732	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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.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	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	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3732	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeSecurityPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeBackupPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeRestorePrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeShutdownPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeDebugPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeUndockPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: 33	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: 34	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: 35	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: 36	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3732	msdcsc.exe
Token: SeSecurityPrivilege	3732	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3732	msdcsc.exe
Token: SeLoadDriverPrivilege	3732	msdcsc.exe
Token: SeSystemProfilePrivilege	3732	msdcsc.exe
Token: SeSystemtimePrivilege	3732	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3732	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3732	msdcsc.exe
Token: SeCreatePagefilePrivilege	3732	msdcsc.exe
Token: SeBackupPrivilege	3732	msdcsc.exe
Token: SeRestorePrivilege	3732	msdcsc.exe
Token: SeShutdownPrivilege	3732	msdcsc.exe
Token: SeDebugPrivilege	3732	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3732	msdcsc.exe
Token: SeChangeNotifyPrivilege	3732	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3732	msdcsc.exe
Token: SeUndockPrivilege	3732	msdcsc.exe
Token: SeManageVolumePrivilege	3732	msdcsc.exe
Token: SeImpersonatePrivilege	3732	msdcsc.exe
Token: SeCreateGlobalPrivilege	3732	msdcsc.exe
Token: 33	3732	msdcsc.exe
Token: 34	3732	msdcsc.exe
Token: 35	3732	msdcsc.exe
Token: 36	3732	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3732	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

description	pid	Process	procid_target
PID 4544 wrote to memory of 960	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	83
PID 4544 wrote to memory of 960	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	83
PID 4544 wrote to memory of 960	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	83
PID 4544 wrote to memory of 3044	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	85
PID 4544 wrote to memory of 3044	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	85
PID 4544 wrote to memory of 3044	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	85
PID 3044 wrote to memory of 3136	3044	cmd.exe	87
PID 3044 wrote to memory of 3136	3044	cmd.exe	87
PID 3044 wrote to memory of 3136	3044	cmd.exe	87
PID 960 wrote to memory of 1652	960	cmd.exe	88
PID 960 wrote to memory of 1652	960	cmd.exe	88
PID 960 wrote to memory of 1652	960	cmd.exe	88
PID 4544 wrote to memory of 3732	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	89
PID 4544 wrote to memory of 3732	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	89
PID 4544 wrote to memory of 3732	4544	b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe	89
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90
PID 3732 wrote to memory of 1916	3732	msdcsc.exe	90

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3136	attrib.exe
1652	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.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:4544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:960
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\b914850eafbba9504aaf7e67869db6b3_JaffaCakes118.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:1652
- 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:3044
- - 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:3136
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3732
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1916

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\Documents\MSDCSC\msdcsc.exe

Filesize
658KB

MD5
b914850eafbba9504aaf7e67869db6b3

SHA1
ed69e6b955cdccf38969da227afa9a7f5e6eeb7c

SHA256
f388fa32e08efa8d9e6225e525b8139f8310fae9bdc4d8bd7118d0cb6333ee60

SHA512
76822f95bc109294d5a2dbe7bdb316623ea10a9ae41fc6530fe45e9f5d7067ed7b4202ab572a6905b383cd05612f954696115030640cc8430988d726ea1eed6d

Download Submit
memory/1916-62-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/3732-61-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/3732-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/4544-0-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/4544-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads