darkcomet | b51b1da5aae0484e7d1172feb0b843b9a843b32e9c42f64028bf7d674071a814

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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

Deletes itself 1 IoCs

pid	Process
2884	notepad.exe

Executes dropped EXE 2 IoCs

pid	Process
2856	winupdate.exe
2636	winupdate.exe

Loads dropped DLL 8 IoCs

pid	Process
1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
2856	winupdate.exe
2856	winupdate.exe
2856	winupdate.exe
2856	winupdate.exe
2636	winupdate.exe
2636	winupdate.exe
2636	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Users\\Admin\\AppData\\Local\\Temp\\system\\winupdate.exe"	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\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 2668 set thread context of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2856 set thread context of 2636	2856	winupdate.exe	34

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1524-3-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/1524-4-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/1524-8-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/1524-9-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/1524-10-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral1/memory/1524-83-0x0000000013140000-0x00000000131FC000-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	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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSecurityPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeBackupPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeRestorePrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeShutdownPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeDebugPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeUndockPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 33	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 34	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: 35	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2636	winupdate.exe
Token: SeSecurityPrivilege	2636	winupdate.exe
Token: SeTakeOwnershipPrivilege	2636	winupdate.exe
Token: SeLoadDriverPrivilege	2636	winupdate.exe
Token: SeSystemProfilePrivilege	2636	winupdate.exe
Token: SeSystemtimePrivilege	2636	winupdate.exe
Token: SeProfSingleProcessPrivilege	2636	winupdate.exe
Token: SeIncBasePriorityPrivilege	2636	winupdate.exe
Token: SeCreatePagefilePrivilege	2636	winupdate.exe
Token: SeBackupPrivilege	2636	winupdate.exe
Token: SeRestorePrivilege	2636	winupdate.exe
Token: SeShutdownPrivilege	2636	winupdate.exe
Token: SeDebugPrivilege	2636	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2636	winupdate.exe
Token: SeChangeNotifyPrivilege	2636	winupdate.exe
Token: SeRemoteShutdownPrivilege	2636	winupdate.exe
Token: SeUndockPrivilege	2636	winupdate.exe
Token: SeManageVolumePrivilege	2636	winupdate.exe
Token: SeImpersonatePrivilege	2636	winupdate.exe
Token: SeCreateGlobalPrivilege	2636	winupdate.exe
Token: 33	2636	winupdate.exe
Token: 34	2636	winupdate.exe
Token: 35	2636	winupdate.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
2856	winupdate.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 2668 wrote to memory of 1524	2668	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	30
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 1872	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	31
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2856	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	32
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 1524 wrote to memory of 2884	1524	46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe	33
PID 2856 wrote to memory of 2636	2856	winupdate.exe	34
PID 2856 wrote to memory of 2636	2856	winupdate.exe	34
PID 2856 wrote to memory of 2636	2856	winupdate.exe	34
PID 2856 wrote to memory of 2636	2856	winupdate.exe	34
PID 2856 wrote to memory of 2636	2856	winupdate.exe	34
PID 2856 wrote to memory of 2636	2856	winupdate.exe	34

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:2668
- C:\Users\Admin\AppData\Local\Temp\46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\46dfeb06c1695665042e4feddb480980_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1524
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    PID:1872
- - C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe
    "C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2856
  - - C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe
      C:\Users\Admin\AppData\Local\Temp\system\winupdate.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:2636
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\SysWOW64\notepad.exe
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:2884

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

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\system\winupdate.exe

Filesize
1.0MB

MD5
46dfeb06c1695665042e4feddb480980

SHA1
d8a302e1aaca5c840821e04a9fe062cea19d1e49

SHA256
b51b1da5aae0484e7d1172feb0b843b9a843b32e9c42f64028bf7d674071a814

SHA512
9988843c4857ddb9d613d0cb8f7f9c2836cfdd7537de2a1563193d773b2af0150ac5fb1bbb0b819e7b1e7603b0b8eec9b044df2998b24cd24c9f3af3f18aa445

Download Submit
memory/1524-3-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1524-4-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1524-80-0x0000000005830000-0x0000000005B81000-memory.dmp

Filesize
3.3MB

Download
memory/1524-5-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1524-8-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1524-9-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1524-10-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1524-11-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1524-83-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/1872-45-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1872-13-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/2636-108-0x0000000000D50000-0x00000000010A1000-memory.dmp

Filesize
3.3MB

Download
memory/2636-113-0x0000000000D50000-0x00000000010A1000-memory.dmp

Filesize
3.3MB

Download
memory/2636-112-0x0000000000D50000-0x00000000010A1000-memory.dmp

Filesize
3.3MB

Download
memory/2636-111-0x0000000000D50000-0x00000000010A1000-memory.dmp

Filesize
3.3MB

Download
memory/2636-106-0x0000000000D50000-0x00000000010A1000-memory.dmp

Filesize
3.3MB

Download
memory/2636-107-0x0000000000D50000-0x00000000010A1000-memory.dmp

Filesize
3.3MB

Download
memory/2668-1-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/2668-7-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/2856-84-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/2856-104-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/2856-98-0x0000000003F30000-0x0000000004281000-memory.dmp

Filesize
3.3MB

Download
memory/2856-87-0x0000000000E30000-0x0000000001181000-memory.dmp

Filesize
3.3MB

Download
memory/2856-89-0x0000000000E30000-0x0000000001181000-memory.dmp

Filesize
3.3MB

Download
memory/2856-92-0x0000000000E30000-0x0000000001181000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads