darkcomet | e1f04c9b99e42c5bb10ccfd7c39143032f2e0bb2ece2059eb7ead0b463ff5f01

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250129-en
resource tags

arch:x64arch:x86image:win10v2004-20250129-enlocale:en-usos:windows10-2004-x64system
submitted
05/02/2025, 22:56

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General

Target

JaffaCakes118_a49559a200d60501832dfec97f359084.exe
Size

1.7MB
MD5

a49559a200d60501832dfec97f359084
SHA1

ca9e1cc0ab5bb028ab1563ff0bb50d775a001b3a
SHA256

e1f04c9b99e42c5bb10ccfd7c39143032f2e0bb2ece2059eb7ead0b463ff5f01
SHA512

aeda9ea95014ea2e53298d313cb970f65f6dc59d7fcc44fce1d496a132565f21a9a87cf89cb27c6c9acd340c83a1b3d607204fc4510572b07d3de07a5144cce1
SSDEEP

24576:6Un4Pm0DnaOKPdJ2if1iznaThZEvTOPm+qc9Tr2+jgc1:tg5aO3xGfRbe+V

Score

10^/10

darkcomet defense_evasion 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:\\Windows\\explorer.exe"	%tmp%.exe

Disables RegEdit via registry modification 1 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	explorer.exe

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	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	%tmp%.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-1-5-21-2089655958-977706906-1981639424-1000\Control Panel\International\Geo\Nation	JaffaCakes118_a49559a200d60501832dfec97f359084.exe

Executes dropped EXE 1 IoCs

pid	Process
2264	%tmp%.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\rundll32 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\rundll32 .exe"	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2089655958-977706906-1981639424-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Windows\\explorer.exe"	%tmp%.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2264 set thread context of 4248	2264	%tmp%.exe	89

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\	%tmp%.exe
File created	C:\Windows\explorer.exe	%tmp%.exe
File opened for modification	C:\Windows\explorer.exe	%tmp%.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 4 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	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	%tmp%.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ping.exe

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

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1912	ping.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	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	%tmp%.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	%tmp%.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	%tmp%.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	%tmp%.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	%tmp%.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1912	ping.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe
Token: SeIncreaseQuotaPrivilege	2264	%tmp%.exe
Token: SeSecurityPrivilege	2264	%tmp%.exe
Token: SeTakeOwnershipPrivilege	2264	%tmp%.exe
Token: SeLoadDriverPrivilege	2264	%tmp%.exe
Token: SeSystemProfilePrivilege	2264	%tmp%.exe
Token: SeSystemtimePrivilege	2264	%tmp%.exe
Token: SeProfSingleProcessPrivilege	2264	%tmp%.exe
Token: SeIncBasePriorityPrivilege	2264	%tmp%.exe
Token: SeCreatePagefilePrivilege	2264	%tmp%.exe
Token: SeBackupPrivilege	2264	%tmp%.exe
Token: SeRestorePrivilege	2264	%tmp%.exe
Token: SeShutdownPrivilege	2264	%tmp%.exe
Token: SeDebugPrivilege	2264	%tmp%.exe
Token: SeSystemEnvironmentPrivilege	2264	%tmp%.exe
Token: SeChangeNotifyPrivilege	2264	%tmp%.exe
Token: SeRemoteShutdownPrivilege	2264	%tmp%.exe
Token: SeUndockPrivilege	2264	%tmp%.exe
Token: SeManageVolumePrivilege	2264	%tmp%.exe
Token: SeImpersonatePrivilege	2264	%tmp%.exe
Token: SeCreateGlobalPrivilege	2264	%tmp%.exe
Token: 33	2264	%tmp%.exe
Token: 34	2264	%tmp%.exe
Token: 35	2264	%tmp%.exe
Token: 36	2264	%tmp%.exe
Token: SeIncreaseQuotaPrivilege	4248	explorer.exe
Token: SeSecurityPrivilege	4248	explorer.exe
Token: SeTakeOwnershipPrivilege	4248	explorer.exe
Token: SeLoadDriverPrivilege	4248	explorer.exe
Token: SeSystemProfilePrivilege	4248	explorer.exe
Token: SeSystemtimePrivilege	4248	explorer.exe
Token: SeProfSingleProcessPrivilege	4248	explorer.exe
Token: SeIncBasePriorityPrivilege	4248	explorer.exe
Token: SeCreatePagefilePrivilege	4248	explorer.exe
Token: SeBackupPrivilege	4248	explorer.exe
Token: SeRestorePrivilege	4248	explorer.exe
Token: SeShutdownPrivilege	4248	explorer.exe
Token: SeDebugPrivilege	4248	explorer.exe
Token: SeSystemEnvironmentPrivilege	4248	explorer.exe
Token: SeChangeNotifyPrivilege	4248	explorer.exe
Token: SeRemoteShutdownPrivilege	4248	explorer.exe
Token: SeUndockPrivilege	4248	explorer.exe
Token: SeManageVolumePrivilege	4248	explorer.exe
Token: SeImpersonatePrivilege	4248	explorer.exe
Token: SeCreateGlobalPrivilege	4248	explorer.exe
Token: 33	4248	explorer.exe
Token: 34	4248	explorer.exe
Token: 35	4248	explorer.exe
Token: 36	4248	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4248	explorer.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4300 wrote to memory of 2264	4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe	88
PID 4300 wrote to memory of 2264	4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe	88
PID 4300 wrote to memory of 2264	4300	JaffaCakes118_a49559a200d60501832dfec97f359084.exe	88
PID 2264 wrote to memory of 4248	2264	%tmp%.exe	89
PID 2264 wrote to memory of 4248	2264	%tmp%.exe	89
PID 2264 wrote to memory of 4248	2264	%tmp%.exe	89
PID 2264 wrote to memory of 4248	2264	%tmp%.exe	89
PID 2264 wrote to memory of 4248	2264	%tmp%.exe	89
PID 2264 wrote to memory of 1912	2264	%tmp%.exe	90
PID 2264 wrote to memory of 1912	2264	%tmp%.exe	90
PID 2264 wrote to memory of 1912	2264	%tmp%.exe	90

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a49559a200d60501832dfec97f359084.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_a49559a200d60501832dfec97f359084.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4300
- C:\Users\Admin\AppData\Local\Temp\%tmp%.exe
  "C:\Users\Admin\AppData\Local\Temp\%tmp%.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - 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:2264
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Disables RegEdit via registry modification
    - Checks BIOS information in registry
    - 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:4248
- - C:\Windows\SysWOW64\ping.exe
    ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\%tmp%.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1912

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

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\%tmp%.exe

Filesize
635KB

MD5
8ddae772b95541b0ba1c87d64303bb1b

SHA1
3bc9c2d2ee9cf85d5cd121f8441b0e8636d89e91

SHA256
77499158cdf249e9f8e31d1f78d202f042e6f68cd05b11c86f2c355c9f598699

SHA512
6a1fe5daf9972d79cf3b5f7e8cd8014b33b19b54048a34640546bcd15a74fdb187373432fe0056e0f4e431ff45450e735edcf0186fce08feb071eec4a6f6a92f

Download Submit
memory/2264-22-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/2264-18-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/4248-26-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-20-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-21-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-19-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-23-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-27-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-25-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-24-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4248-28-0x0000000000400000-0x00000000004B0000-memory.dmp

Filesize
704KB

Download
memory/4300-17-0x00000000748F0000-0x0000000074EA1000-memory.dmp

Filesize
5.7MB

Download
memory/4300-2-0x00000000748F0000-0x0000000074EA1000-memory.dmp

Filesize
5.7MB

Download
memory/4300-1-0x00000000748F0000-0x0000000074EA1000-memory.dmp

Filesize
5.7MB

Download
memory/4300-0-0x00000000748F2000-0x00000000748F3000-memory.dmp

Filesize
4KB

Download