darkcomet | e42880ab33781f959c6415c45d51abd8dd67b9e1e54cd4d7d4efc582c1a4f309

Analysis

max time kernel
17s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
16-10-2024 22:45

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General

Target

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Size

503KB
MD5

4f6e01d46bfa16868c178274f72da90e
SHA1

56ddf25a051d5c376a01d1d5f15f0479e1c42c94
SHA256

e42880ab33781f959c6415c45d51abd8dd67b9e1e54cd4d7d4efc582c1a4f309
SHA512

f2a920ba353fd9a72a9716a73f36000787dea4b92beaef62f3ccfd4c6faa1578c71cb3444b30e45988f1d0cd2e33679e4501e1a56404bcdde991293f88e2bb63
SSDEEP

12288:UJUTcQdqZq+n1XJKFJM3iOFCUXW79tEgB2g75eItaFM/R:x7y1XIF6HFLXW79tB2uUW/R

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

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Windupdt\\winupdate.exe"	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

winupdate.exe

pid	Process
3020	winupdate.exe

Loads dropped DLL 4 IoCs

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exewinupdate.exe

pid	Process
1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
3020	winupdate.exe
3020	winupdate.exe
3020	winupdate.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Drops file in System32 directory 3 IoCs

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	ioc	Process
File created	C:\Windows\SysWOW64\Windupdt\winupdate.exe	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winupdate.exe	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	pid	Process	procid_target
PID 1456 set thread context of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1660 set thread context of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.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

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exewinupdate.exeexplorer.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 4 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

description	pid	Process
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: 33	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exeexplorer.exe

description	pid	Process	procid_target
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1456 wrote to memory of 1660	1456	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	29
PID 1660 wrote to memory of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	30
PID 1660 wrote to memory of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	30
PID 1660 wrote to memory of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	30
PID 1660 wrote to memory of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	30
PID 1660 wrote to memory of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	30
PID 1660 wrote to memory of 2816	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	30
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 1660 wrote to memory of 3020	1660	4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe	31
PID 2816 wrote to memory of 2784	2816	explorer.exe	32
PID 2816 wrote to memory of 2784	2816	explorer.exe	32
PID 2816 wrote to memory of 2784	2816	explorer.exe	32
PID 2816 wrote to memory of 2784	2816	explorer.exe	32

C:\Users\Admin\AppData\Local\Temp\4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Users\Admin\AppData\Local\Temp\4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\4f6e01d46bfa16868c178274f72da90e_JaffaCakes118.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of WriteProcessMemory
  PID:1660
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2816
  - - C:\Windows\SysWOW64\explorer.exe
      C:\Windows\SysWOW64\explorer.exe
      4⤵
      PID:2784
- - C:\Windows\SysWOW64\Windupdt\winupdate.exe
    "C:\Windows\system32\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:3020

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Windupdt\winupdate.exe

Filesize
503KB

MD5
4f6e01d46bfa16868c178274f72da90e

SHA1
56ddf25a051d5c376a01d1d5f15f0479e1c42c94

SHA256
e42880ab33781f959c6415c45d51abd8dd67b9e1e54cd4d7d4efc582c1a4f309

SHA512
f2a920ba353fd9a72a9716a73f36000787dea4b92beaef62f3ccfd4c6faa1578c71cb3444b30e45988f1d0cd2e33679e4501e1a56404bcdde991293f88e2bb63

Download Submit
memory/1456-23-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/1660-25-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-4-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-27-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-20-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1660-19-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-17-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-15-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-12-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-26-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-24-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-2-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-6-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-9-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-43-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1660-0-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/2816-32-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-38-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-37-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-35-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

Download
memory/2816-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2816-52-0x0000000000400000-0x0000000000482000-memory.dmp

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520KB

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memory/3020-51-0x0000000000400000-0x0000000000482000-memory.dmp

Filesize
520KB

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