darkcomet | 12d93bbc5039d986040c29dcc8182f80c5111493a6391363000862151da688c0

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-11-2024 10:51

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General

Target

b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Size

236KB
MD5

b0c4b11744ddae6907062f69c92f7953
SHA1

b5a6b08c8e33c0ad7d096116bd3eae14b0eccd15
SHA256

12d93bbc5039d986040c29dcc8182f80c5111493a6391363000862151da688c0
SHA512

f78c4f869c54288eb31bb7c2401c8b0b7c1995d5789420a85a6b34f4d823d86e2946c5126b41a6523f267b7b1dcd6fd1ab27b749fd78696c494d444dcb2f0994
SSDEEP

6144:JYuXoZ/4R9r4ruWtYUTHAhrWIIevWea217pFqel66D1O+:JYuXigRqjtYyHhsTa2BqelLD1X

Score

10^/10

darkcomet aspackv2 discovery 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:\\Windupdt\\winupdate.exe"	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x0007000000018741-6.dat	aspack_v212_v242

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2016	winupdate.exe

Loads dropped DLL 4 IoCs

pid	Process
1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
2016	winupdate.exe
2016	winupdate.exe
2016	winupdate.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe

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	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupdate.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupdate.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeSecurityPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeBackupPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeRestorePrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeShutdownPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeDebugPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeUndockPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: 33	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: 34	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: 35	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2016	winupdate.exe
Token: SeSecurityPrivilege	2016	winupdate.exe
Token: SeTakeOwnershipPrivilege	2016	winupdate.exe
Token: SeLoadDriverPrivilege	2016	winupdate.exe
Token: SeSystemProfilePrivilege	2016	winupdate.exe
Token: SeSystemtimePrivilege	2016	winupdate.exe
Token: SeProfSingleProcessPrivilege	2016	winupdate.exe
Token: SeIncBasePriorityPrivilege	2016	winupdate.exe
Token: SeCreatePagefilePrivilege	2016	winupdate.exe
Token: SeBackupPrivilege	2016	winupdate.exe
Token: SeRestorePrivilege	2016	winupdate.exe
Token: SeShutdownPrivilege	2016	winupdate.exe
Token: SeDebugPrivilege	2016	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2016	winupdate.exe
Token: SeChangeNotifyPrivilege	2016	winupdate.exe
Token: SeRemoteShutdownPrivilege	2016	winupdate.exe
Token: SeUndockPrivilege	2016	winupdate.exe
Token: SeManageVolumePrivilege	2016	winupdate.exe
Token: SeImpersonatePrivilege	2016	winupdate.exe
Token: SeCreateGlobalPrivilege	2016	winupdate.exe
Token: 33	2016	winupdate.exe
Token: 34	2016	winupdate.exe
Token: 35	2016	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2016	winupdate.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 2464	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	31
PID 1960 wrote to memory of 2464	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	31
PID 1960 wrote to memory of 2464	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	31
PID 1960 wrote to memory of 2464	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	31
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32
PID 1960 wrote to memory of 2016	1960	b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b0c4b11744ddae6907062f69c92f7953_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Checks BIOS information in registry
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  PID:2464
- C:\Windupdt\winupdate.exe
  "C:\Windupdt\winupdate.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2016

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

\Windupdt\winupdate.exe

Filesize
236KB

MD5
b0c4b11744ddae6907062f69c92f7953

SHA1
b5a6b08c8e33c0ad7d096116bd3eae14b0eccd15

SHA256
12d93bbc5039d986040c29dcc8182f80c5111493a6391363000862151da688c0

SHA512
f78c4f869c54288eb31bb7c2401c8b0b7c1995d5789420a85a6b34f4d823d86e2946c5126b41a6523f267b7b1dcd6fd1ab27b749fd78696c494d444dcb2f0994

Download Submit
memory/1960-0-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1960-1-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/1960-12-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/1960-9-0x0000000003680000-0x0000000003733000-memory.dmp

Filesize
716KB

Download
memory/2016-24-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-26-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-19-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2016-20-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-21-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-22-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-23-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-17-0x00000000004B0000-0x00000000004B1000-memory.dmp

Filesize
4KB

Download
memory/2016-25-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-18-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-27-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-28-0x0000000000300000-0x00000000003B3000-memory.dmp

Filesize
716KB

Download
memory/2016-29-0x0000000000300000-0x00000000003B3000-memory.dmp

Filesize
716KB

Download
memory/2016-30-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-31-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-32-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-33-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-34-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-35-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/2016-36-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads