darkcomet | 57a1236800a5aed6cb19fdbacddf7690879e7089a3a4e53e69914a881deeee9d

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
10-12-2024 00:17

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe
Size

806KB
MD5

dc27eceaf210841183bb41d174d82703
SHA1

3168822dae81eec0db1717de9eaeb8b815342b39
SHA256

57a1236800a5aed6cb19fdbacddf7690879e7089a3a4e53e69914a881deeee9d
SHA512

42bfb70ce62522e95e9c3c1a6cd6e1488d7044a94a017ae4bd1ed6ba7e3858f987a4d48bb40f412501918639b83c14e9544a8acceb7fb7eda377e8a4d8b582a2
SSDEEP

12288:vYUAPSGPXu8BFlemZpYZ0RKYrb/FGLzj2Ev7CQGuXMgpTYnsqhAiuwW:mSSuO1MZ0B/F4muXbpE+tr

Score

10^/10

darkcomet discovery evasion persistence rat trojan

Malware Config

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"	Crypted.exe

Modifies firewall policy service 3 TTPs 6 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

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
1992	attrib.exe
764	attrib.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	Crypted.exe

Executes dropped EXE 2 IoCs

pid	Process
4744	Crypted.exe
5080	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Crypted.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5080 set thread context of 4472	5080	msdcsc.exe	94

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 9 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	Crypted.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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
3696	cmd.exe
3164	PING.EXE

Modifies registry class 1 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3164	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4472	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4744	Crypted.exe
Token: SeSecurityPrivilege	4744	Crypted.exe
Token: SeTakeOwnershipPrivilege	4744	Crypted.exe
Token: SeLoadDriverPrivilege	4744	Crypted.exe
Token: SeSystemProfilePrivilege	4744	Crypted.exe
Token: SeSystemtimePrivilege	4744	Crypted.exe
Token: SeProfSingleProcessPrivilege	4744	Crypted.exe
Token: SeIncBasePriorityPrivilege	4744	Crypted.exe
Token: SeCreatePagefilePrivilege	4744	Crypted.exe
Token: SeBackupPrivilege	4744	Crypted.exe
Token: SeRestorePrivilege	4744	Crypted.exe
Token: SeShutdownPrivilege	4744	Crypted.exe
Token: SeDebugPrivilege	4744	Crypted.exe
Token: SeSystemEnvironmentPrivilege	4744	Crypted.exe
Token: SeChangeNotifyPrivilege	4744	Crypted.exe
Token: SeRemoteShutdownPrivilege	4744	Crypted.exe
Token: SeUndockPrivilege	4744	Crypted.exe
Token: SeManageVolumePrivilege	4744	Crypted.exe
Token: SeImpersonatePrivilege	4744	Crypted.exe
Token: SeCreateGlobalPrivilege	4744	Crypted.exe
Token: 33	4744	Crypted.exe
Token: 34	4744	Crypted.exe
Token: 35	4744	Crypted.exe
Token: 36	4744	Crypted.exe
Token: SeIncreaseQuotaPrivilege	5080	msdcsc.exe
Token: SeSecurityPrivilege	5080	msdcsc.exe
Token: SeTakeOwnershipPrivilege	5080	msdcsc.exe
Token: SeLoadDriverPrivilege	5080	msdcsc.exe
Token: SeSystemProfilePrivilege	5080	msdcsc.exe
Token: SeSystemtimePrivilege	5080	msdcsc.exe
Token: SeProfSingleProcessPrivilege	5080	msdcsc.exe
Token: SeIncBasePriorityPrivilege	5080	msdcsc.exe
Token: SeCreatePagefilePrivilege	5080	msdcsc.exe
Token: SeBackupPrivilege	5080	msdcsc.exe
Token: SeRestorePrivilege	5080	msdcsc.exe
Token: SeShutdownPrivilege	5080	msdcsc.exe
Token: SeDebugPrivilege	5080	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	5080	msdcsc.exe
Token: SeChangeNotifyPrivilege	5080	msdcsc.exe
Token: SeRemoteShutdownPrivilege	5080	msdcsc.exe
Token: SeUndockPrivilege	5080	msdcsc.exe
Token: SeManageVolumePrivilege	5080	msdcsc.exe
Token: SeImpersonatePrivilege	5080	msdcsc.exe
Token: SeCreateGlobalPrivilege	5080	msdcsc.exe
Token: 33	5080	msdcsc.exe
Token: 34	5080	msdcsc.exe
Token: 35	5080	msdcsc.exe
Token: 36	5080	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4472	iexplore.exe
Token: SeSecurityPrivilege	4472	iexplore.exe
Token: SeTakeOwnershipPrivilege	4472	iexplore.exe
Token: SeLoadDriverPrivilege	4472	iexplore.exe
Token: SeSystemProfilePrivilege	4472	iexplore.exe
Token: SeSystemtimePrivilege	4472	iexplore.exe
Token: SeProfSingleProcessPrivilege	4472	iexplore.exe
Token: SeIncBasePriorityPrivilege	4472	iexplore.exe
Token: SeCreatePagefilePrivilege	4472	iexplore.exe
Token: SeBackupPrivilege	4472	iexplore.exe
Token: SeRestorePrivilege	4472	iexplore.exe
Token: SeShutdownPrivilege	4472	iexplore.exe
Token: SeDebugPrivilege	4472	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4472	iexplore.exe
Token: SeChangeNotifyPrivilege	4472	iexplore.exe
Token: SeRemoteShutdownPrivilege	4472	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4472	iexplore.exe

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 4932 wrote to memory of 4744	4932	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	83
PID 4932 wrote to memory of 4744	4932	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	83
PID 4932 wrote to memory of 4744	4932	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	83
PID 4744 wrote to memory of 4384	4744	Crypted.exe	84
PID 4744 wrote to memory of 4384	4744	Crypted.exe	84
PID 4744 wrote to memory of 4384	4744	Crypted.exe	84
PID 4744 wrote to memory of 372	4744	Crypted.exe	85
PID 4744 wrote to memory of 372	4744	Crypted.exe	85
PID 4744 wrote to memory of 372	4744	Crypted.exe	85
PID 4744 wrote to memory of 3696	4744	Crypted.exe	88
PID 4744 wrote to memory of 3696	4744	Crypted.exe	88
PID 4744 wrote to memory of 3696	4744	Crypted.exe	88
PID 372 wrote to memory of 1992	372	cmd.exe	90
PID 372 wrote to memory of 1992	372	cmd.exe	90
PID 372 wrote to memory of 1992	372	cmd.exe	90
PID 4384 wrote to memory of 764	4384	cmd.exe	91
PID 4384 wrote to memory of 764	4384	cmd.exe	91
PID 4384 wrote to memory of 764	4384	cmd.exe	91
PID 3696 wrote to memory of 3164	3696	cmd.exe	92
PID 3696 wrote to memory of 3164	3696	cmd.exe	92
PID 3696 wrote to memory of 3164	3696	cmd.exe	92
PID 4744 wrote to memory of 5080	4744	Crypted.exe	93
PID 4744 wrote to memory of 5080	4744	Crypted.exe	93
PID 4744 wrote to memory of 5080	4744	Crypted.exe	93
PID 5080 wrote to memory of 4472	5080	msdcsc.exe	94
PID 5080 wrote to memory of 4472	5080	msdcsc.exe	94
PID 5080 wrote to memory of 4472	5080	msdcsc.exe	94
PID 5080 wrote to memory of 4472	5080	msdcsc.exe	94
PID 5080 wrote to memory of 4472	5080	msdcsc.exe	94

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
1992	attrib.exe
764	attrib.exe

C:\Users\Admin\AppData\Local\Temp\dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4932
- C:\Users\Admin\AppData\Local\Temp\Crypted.exe
  "C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4384
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:764
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:372
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:1992
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:3696
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 4
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:3164
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:5080
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      Modifies firewall policy service
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4472

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 System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\Crypted.exe

Filesize
744KB

MD5
d6856a3c5fad61d5d8a11ea02db604b6

SHA1
1812768080f0a9e0dbf376f7c1b3beece18f5747

SHA256
ff5cc5d6ca35c5657bc6ac0167107e4490fa6abfe3bb830cdb85df0c7cb0c0c8

SHA512
81f110e574660648c77c02305a30a556dd4605a66afe621700cb0b05feb937243bf7c316cb2829fa5012a5374307bc0207859e545822c8d1ca19360ff79632e2

Download Submit
memory/4472-86-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/4744-85-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/4744-21-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/4932-8-0x00007FFA20DE0000-0x00007FFA21781000-memory.dmp

Filesize
9.6MB

Download
memory/4932-5-0x00007FFA20DE0000-0x00007FFA21781000-memory.dmp

Filesize
9.6MB

Download
memory/4932-6-0x0000000000E00000-0x0000000000E08000-memory.dmp

Filesize
32KB

Download
memory/4932-7-0x00000000012E0000-0x000000000132C000-memory.dmp

Filesize
304KB

Download
memory/4932-0-0x00007FFA21095000-0x00007FFA21096000-memory.dmp

Filesize
4KB

Download
memory/4932-9-0x00007FFA20DE0000-0x00007FFA21781000-memory.dmp

Filesize
9.6MB

Download
memory/4932-4-0x000000001C370000-0x000000001C40C000-memory.dmp

Filesize
624KB

Download
memory/4932-3-0x000000001BE00000-0x000000001C2CE000-memory.dmp

Filesize
4.8MB

Download
memory/4932-26-0x00007FFA20DE0000-0x00007FFA21781000-memory.dmp

Filesize
9.6MB

Download
memory/4932-1-0x00007FFA20DE0000-0x00007FFA21781000-memory.dmp

Filesize
9.6MB

Download
memory/4932-2-0x000000001B880000-0x000000001B926000-memory.dmp

Filesize
664KB

Download
memory/5080-87-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads