darkcomet | bda554719d5b74cbf2cb72d941fba94e03dbdf3dbde789152b76bf83483565df

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-10-2024 16:14

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General

Target

7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Size

757KB
MD5

7fe4d1ff773a5b614a5ed5ce0e119988
SHA1

0bc04b4bdda7b4edfc3344780a43c8542ef4d438
SHA256

bda554719d5b74cbf2cb72d941fba94e03dbdf3dbde789152b76bf83483565df
SHA512

aed2470edaa03eed6b43c18e43bcb5e6d1faec1eed40090882155c72b428c3da7e096317a1215771d2205cc6900fb6e594ac6c6053f7da346f926057f02c2e15
SSDEEP

12288:z9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h9svv6:9Z1xuVVjfFoynPaVBUR8f+kN10EBMvv6

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

cruzbiz.mooo.com:1604

Mutex

DC_MUTEX-U1P570D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
APRSFUVaZcpB
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
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"	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4872	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\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 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	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4872	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeSecurityPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeSystemtimePrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeBackupPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeRestorePrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeShutdownPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeDebugPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeUndockPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeManageVolumePrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeImpersonatePrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: 33	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: 34	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: 35	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: 36	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4872	msdcsc.exe
Token: SeSecurityPrivilege	4872	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4872	msdcsc.exe
Token: SeLoadDriverPrivilege	4872	msdcsc.exe
Token: SeSystemProfilePrivilege	4872	msdcsc.exe
Token: SeSystemtimePrivilege	4872	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4872	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4872	msdcsc.exe
Token: SeCreatePagefilePrivilege	4872	msdcsc.exe
Token: SeBackupPrivilege	4872	msdcsc.exe
Token: SeRestorePrivilege	4872	msdcsc.exe
Token: SeShutdownPrivilege	4872	msdcsc.exe
Token: SeDebugPrivilege	4872	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4872	msdcsc.exe
Token: SeChangeNotifyPrivilege	4872	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4872	msdcsc.exe
Token: SeUndockPrivilege	4872	msdcsc.exe
Token: SeManageVolumePrivilege	4872	msdcsc.exe
Token: SeImpersonatePrivilege	4872	msdcsc.exe
Token: SeCreateGlobalPrivilege	4872	msdcsc.exe
Token: 33	4872	msdcsc.exe
Token: 34	4872	msdcsc.exe
Token: 35	4872	msdcsc.exe
Token: 36	4872	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4872	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3540 wrote to memory of 4872	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe	96
PID 3540 wrote to memory of 4872	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe	96
PID 3540 wrote to memory of 4872	3540	7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe	96

C:\Users\Admin\AppData\Local\Temp\7fe4d1ff773a5b614a5ed5ce0e119988_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7fe4d1ff773a5b614a5ed5ce0e119988_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:3540
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Disables RegEdit via registry modification
  - 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
  PID:4872

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

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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
757KB

MD5
7fe4d1ff773a5b614a5ed5ce0e119988

SHA1
0bc04b4bdda7b4edfc3344780a43c8542ef4d438

SHA256
bda554719d5b74cbf2cb72d941fba94e03dbdf3dbde789152b76bf83483565df

SHA512
aed2470edaa03eed6b43c18e43bcb5e6d1faec1eed40090882155c72b428c3da7e096317a1215771d2205cc6900fb6e594ac6c6053f7da346f926057f02c2e15

Download Submit
memory/3540-62-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/3540-0-0x00000000023D0000-0x00000000023D1000-memory.dmp

Filesize
4KB

Download
memory/4872-67-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-69-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-64-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/4872-65-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-66-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-61-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/4872-68-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-63-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-70-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-71-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-72-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-73-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-74-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-75-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-76-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/4872-77-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads