darkcomet | b51b1da5aae0484e7d1172feb0b843b9a843b32e9c42f64028bf7d674071a814

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
15/10/2024, 08:59

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General

Target

46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Size

1.0MB
MD5

46dfeb06c1695665042e4feddb480980
SHA1

d8a302e1aaca5c840821e04a9fe062cea19d1e49
SHA256

b51b1da5aae0484e7d1172feb0b843b9a843b32e9c42f64028bf7d674071a814
SHA512

9988843c4857ddb9d613d0cb8f7f9c2836cfdd7537de2a1563193d773b2af0150ac5fb1bbb0b819e7b1e7603b0b8eec9b044df2998b24cd24c9f3af3f18aa445
SSDEEP

24576:Se95EzGSCVEXETWODpuQrPrSvrGe352oBJmARW:Su5EzGSCyi5Edvl52kJq

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

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

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\\system\\winupdate.exe"	46dfeb06c1695665042e4feddb480980_JaffaCakes118.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	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2528	notepad.exe

Executes dropped EXE 2 IoCs

pid	Process
716	winupdate.exe
3588	winupdate.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Users\\Admin\\AppData\\Local\\Temp\\system\\winupdate.exe"	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Users\\Admin\\AppData\\Local\\Temp\\system\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1524 set thread context of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 716 set thread context of 3588	716	winupdate.exe	95

UPX packed file 10 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1284-3-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/1284-4-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/1284-5-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/1284-8-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/1284-9-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/1284-73-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/3588-79-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/3588-80-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/3588-82-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/3588-83-0x0000000013140000-0x00000000131FC000-memory.dmp	upx

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSecurityPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeBackupPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeRestorePrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeShutdownPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeDebugPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeUndockPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 33	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 34	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 35	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 36	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	3588	winupdate.exe
Token: SeSecurityPrivilege	3588	winupdate.exe
Token: SeTakeOwnershipPrivilege	3588	winupdate.exe
Token: SeLoadDriverPrivilege	3588	winupdate.exe
Token: SeSystemProfilePrivilege	3588	winupdate.exe
Token: SeSystemtimePrivilege	3588	winupdate.exe
Token: SeProfSingleProcessPrivilege	3588	winupdate.exe
Token: SeIncBasePriorityPrivilege	3588	winupdate.exe
Token: SeCreatePagefilePrivilege	3588	winupdate.exe
Token: SeBackupPrivilege	3588	winupdate.exe
Token: SeRestorePrivilege	3588	winupdate.exe
Token: SeShutdownPrivilege	3588	winupdate.exe
Token: SeDebugPrivilege	3588	winupdate.exe
Token: SeSystemEnvironmentPrivilege	3588	winupdate.exe
Token: SeChangeNotifyPrivilege	3588	winupdate.exe
Token: SeRemoteShutdownPrivilege	3588	winupdate.exe
Token: SeUndockPrivilege	3588	winupdate.exe
Token: SeManageVolumePrivilege	3588	winupdate.exe
Token: SeImpersonatePrivilege	3588	winupdate.exe
Token: SeCreateGlobalPrivilege	3588	winupdate.exe
Token: 33	3588	winupdate.exe
Token: 34	3588	winupdate.exe
Token: 35	3588	winupdate.exe
Token: 36	3588	winupdate.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
716	winupdate.exe

Suspicious use of WriteProcessMemory 59 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1524 wrote to memory of 1284	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	87
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 2644	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	88
PID 1284 wrote to memory of 716	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	91
PID 1284 wrote to memory of 716	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	91
PID 1284 wrote to memory of 716	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	91
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 1284 wrote to memory of 2528	1284	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	92
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95
PID 716 wrote to memory of 3588	716	winupdate.exe	95

C:\Users\Admin\AppData\Local\Temp\46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Users\Admin\AppData\Local\Temp\46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
  2⤵
  - 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:1284
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:2644
- - C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe
    "C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:716
  - - C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe
      C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:3588
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\SysWOW64\notepad.exe
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2528

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

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\system\winupdate.exe

Filesize
1.0MB

MD5
46dfeb06c1695665042e4feddb480980

SHA1
d8a302e1aaca5c840821e04a9fe062cea19d1e49

SHA256
b51b1da5aae0484e7d1172feb0b843b9a843b32e9c42f64028bf7d674071a814

SHA512
9988843c4857ddb9d613d0cb8f7f9c2836cfdd7537de2a1563193d773b2af0150ac5fb1bbb0b819e7b1e7603b0b8eec9b044df2998b24cd24c9f3af3f18aa445

Download Submit
memory/716-84-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1284-3-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1284-4-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1284-5-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1284-8-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1284-9-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1284-10-0x0000000002760000-0x0000000002761000-memory.dmp

Filesize
4KB

Download
memory/1284-73-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1524-7-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1524-0-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/2528-70-0x0000000000440000-0x0000000000441000-memory.dmp

Filesize
4KB

Download
memory/2644-12-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/3588-80-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3588-82-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3588-79-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/3588-83-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads