darkcomet | 6f94b4cbd37916ca679dbbac53afffc691c6dd5330245b593cdb8302b2a1c31b

Analysis

max time kernel
148s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
17-10-2024 00:17

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General

Target

4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Size

728KB
MD5

4fd155e00d4bc07b165c02bdcc4c3522
SHA1

519f3a5cf6e61a1a3dc372b2c8a865719440c463
SHA256

6f94b4cbd37916ca679dbbac53afffc691c6dd5330245b593cdb8302b2a1c31b
SHA512

eb09cb1a4c6b5ec5fe12c5d92a12c3f86a46434579d3d4750681a6cf8f626e196de71f8a4356392cd75ad3ce1009faaa694b9883c759d3ec2c1effec812f2279
SSDEEP

12288:5GhEc9biObcDEMUkuBjnauDJe0KIPbx2toHHzS0MS0misSORycGRV:5FcMObcDEYUreKPbxJe0MS0misS+ycGf

Score

10^/10

darkcomet discovery persistence rat trojan

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\\Roaming\\winupdate.exe"	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.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	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupdate.exe

Executes dropped EXE 2 IoCs

pid	Process
1808	winupdate.exe
2912	winupdate.exe

Loads dropped DLL 8 IoCs

pid	Process
2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
1808	winupdate.exe
1808	winupdate.exe
1808	winupdate.exe
1808	winupdate.exe
2912	winupdate.exe
2912	winupdate.exe
2912	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-1-5-21-1506706701-1246725540-2219210854-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\winupdate.exe"	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1532 set thread context of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1808 set thread context of 2912	1808	winupdate.exe	30

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	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	4fd155e00d4bc07b165c02bdcc4c3522_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
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.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	winupdate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeSecurityPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeBackupPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeRestorePrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeShutdownPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeDebugPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeUndockPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: 33	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: 34	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: 35	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2912	winupdate.exe
Token: SeSecurityPrivilege	2912	winupdate.exe
Token: SeTakeOwnershipPrivilege	2912	winupdate.exe
Token: SeLoadDriverPrivilege	2912	winupdate.exe
Token: SeSystemProfilePrivilege	2912	winupdate.exe
Token: SeSystemtimePrivilege	2912	winupdate.exe
Token: SeProfSingleProcessPrivilege	2912	winupdate.exe
Token: SeIncBasePriorityPrivilege	2912	winupdate.exe
Token: SeCreatePagefilePrivilege	2912	winupdate.exe
Token: SeBackupPrivilege	2912	winupdate.exe
Token: SeRestorePrivilege	2912	winupdate.exe
Token: SeShutdownPrivilege	2912	winupdate.exe
Token: SeDebugPrivilege	2912	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2912	winupdate.exe
Token: SeChangeNotifyPrivilege	2912	winupdate.exe
Token: SeRemoteShutdownPrivilege	2912	winupdate.exe
Token: SeUndockPrivilege	2912	winupdate.exe
Token: SeManageVolumePrivilege	2912	winupdate.exe
Token: SeImpersonatePrivilege	2912	winupdate.exe
Token: SeCreateGlobalPrivilege	2912	winupdate.exe
Token: 33	2912	winupdate.exe
Token: 34	2912	winupdate.exe
Token: 35	2912	winupdate.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 1532 wrote to memory of 2132	1532	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	28
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 2132 wrote to memory of 1808	2132	4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe	29
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30
PID 1808 wrote to memory of 2912	1808	winupdate.exe	30

C:\Users\Admin\AppData\Local\Temp\4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1532
- C:\Users\Admin\AppData\Local\Temp\4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\4fd155e00d4bc07b165c02bdcc4c3522_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - 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:2132
- - C:\Users\Admin\AppData\Roaming\winupdate.exe
    "C:\Users\Admin\AppData\Roaming\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1808
  - - C:\Users\Admin\AppData\Roaming\winupdate.exe
      C:\Users\Admin\AppData\Roaming\winupdate.exe
      4⤵
      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
      PID:2912

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

\Users\Admin\AppData\Roaming\winupdate.exe

Filesize
728KB

MD5
4fd155e00d4bc07b165c02bdcc4c3522

SHA1
519f3a5cf6e61a1a3dc372b2c8a865719440c463

SHA256
6f94b4cbd37916ca679dbbac53afffc691c6dd5330245b593cdb8302b2a1c31b

SHA512
eb09cb1a4c6b5ec5fe12c5d92a12c3f86a46434579d3d4750681a6cf8f626e196de71f8a4356392cd75ad3ce1009faaa694b9883c759d3ec2c1effec812f2279

Download Submit
memory/1532-0-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1532-18-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1808-40-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/1808-39-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/1808-65-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2132-5-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-9-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-17-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-16-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-13-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-11-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-7-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-15-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-3-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-1-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-19-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-20-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-21-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-22-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-33-0x0000000003870000-0x000000000392C000-memory.dmp

Filesize
752KB

Download
memory/2132-32-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2132-74-0x0000000003870000-0x000000000392C000-memory.dmp

Filesize
752KB

Download
memory/2912-73-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/2912-79-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-72-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/2912-71-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/2912-70-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-69-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-68-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-60-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-67-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-75-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-78-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/2912-77-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/2912-76-0x00000000004C0000-0x000000000057C000-memory.dmp

Filesize
752KB

Download
memory/2912-66-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-80-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-81-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-82-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-83-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-84-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-85-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-86-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-87-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-88-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-89-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-90-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-91-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download
memory/2912-92-0x0000000000400000-0x00000000004C0000-memory.dmp

Filesize
768KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads