darkcomet | 27c5ea836ffb52bf22df29e039b102a7f1a402ff3e0d7a6925a628999fe575a2

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
29/03/2025, 18:11

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General

Target

JaffaCakes118_9069fa248edbd51b9843512162454a21.exe
Size

1.8MB
MD5

9069fa248edbd51b9843512162454a21
SHA1

523ba0b8402e82e1686e38ba53f8c76fd77565e6
SHA256

27c5ea836ffb52bf22df29e039b102a7f1a402ff3e0d7a6925a628999fe575a2
SHA512

f6b3b9bc5b262d47f366763045d3f2fc166bd6a7140f70599c9cab94106643f4071784618d5f58c95490bc2fb60bcca0b61f859a415d7d19ce21347125537899
SSDEEP

12288:s64Kj0aD6XuBq9LZZwnIOGyU2FeAN6Ypbf1qAm0gW7SllD6WKFGv8X34G4OjcIps:36+cSFt5SWGycIjgH0HZsVQN6

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

servicedevice.no-ip.org:1232

Mutex

DC_MUTEX-2T9L5UJ

Attributes

InstallPath
MSoft\smss.exe
gencode
j6TrhCffXJTX
install
true
offline_keylogger
true
password
123456789
persistence
false
reg_key
Microsoft � Co- operation �

rc4.plain

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:\\Users\\Admin\\AppData\\Local\\Temp\\MSoft\\smss.exe"	720.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4600	attrib.exe
4712	attrib.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-1-5-21-3342763580-2723508992-2885672917-1000\Control Panel\International\Geo\Nation	720.exe

Executes dropped EXE 3 IoCs

pid	Process
3392	720.exe
4100	smss.exe
916	smss.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-1-5-21-3342763580-2723508992-2885672917-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft ® Co- operation © = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSoft\\smss.exe"	720.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 8 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	720.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smss.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	smss.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	720.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4100	smss.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3392	720.exe
Token: SeSecurityPrivilege	3392	720.exe
Token: SeTakeOwnershipPrivilege	3392	720.exe
Token: SeLoadDriverPrivilege	3392	720.exe
Token: SeSystemProfilePrivilege	3392	720.exe
Token: SeSystemtimePrivilege	3392	720.exe
Token: SeProfSingleProcessPrivilege	3392	720.exe
Token: SeIncBasePriorityPrivilege	3392	720.exe
Token: SeCreatePagefilePrivilege	3392	720.exe
Token: SeBackupPrivilege	3392	720.exe
Token: SeRestorePrivilege	3392	720.exe
Token: SeShutdownPrivilege	3392	720.exe
Token: SeDebugPrivilege	3392	720.exe
Token: SeSystemEnvironmentPrivilege	3392	720.exe
Token: SeChangeNotifyPrivilege	3392	720.exe
Token: SeRemoteShutdownPrivilege	3392	720.exe
Token: SeUndockPrivilege	3392	720.exe
Token: SeManageVolumePrivilege	3392	720.exe
Token: SeImpersonatePrivilege	3392	720.exe
Token: SeCreateGlobalPrivilege	3392	720.exe
Token: 33	3392	720.exe
Token: 34	3392	720.exe
Token: 35	3392	720.exe
Token: 36	3392	720.exe
Token: SeIncreaseQuotaPrivilege	4100	smss.exe
Token: SeSecurityPrivilege	4100	smss.exe
Token: SeTakeOwnershipPrivilege	4100	smss.exe
Token: SeLoadDriverPrivilege	4100	smss.exe
Token: SeSystemProfilePrivilege	4100	smss.exe
Token: SeSystemtimePrivilege	4100	smss.exe
Token: SeProfSingleProcessPrivilege	4100	smss.exe
Token: SeIncBasePriorityPrivilege	4100	smss.exe
Token: SeCreatePagefilePrivilege	4100	smss.exe
Token: SeBackupPrivilege	4100	smss.exe
Token: SeRestorePrivilege	4100	smss.exe
Token: SeShutdownPrivilege	4100	smss.exe
Token: SeDebugPrivilege	4100	smss.exe
Token: SeSystemEnvironmentPrivilege	4100	smss.exe
Token: SeChangeNotifyPrivilege	4100	smss.exe
Token: SeRemoteShutdownPrivilege	4100	smss.exe
Token: SeUndockPrivilege	4100	smss.exe
Token: SeManageVolumePrivilege	4100	smss.exe
Token: SeImpersonatePrivilege	4100	smss.exe
Token: SeCreateGlobalPrivilege	4100	smss.exe
Token: 33	4100	smss.exe
Token: 34	4100	smss.exe
Token: 35	4100	smss.exe
Token: 36	4100	smss.exe
Token: SeIncreaseQuotaPrivilege	916	smss.exe
Token: SeSecurityPrivilege	916	smss.exe
Token: SeTakeOwnershipPrivilege	916	smss.exe
Token: SeLoadDriverPrivilege	916	smss.exe
Token: SeSystemProfilePrivilege	916	smss.exe
Token: SeSystemtimePrivilege	916	smss.exe
Token: SeProfSingleProcessPrivilege	916	smss.exe
Token: SeIncBasePriorityPrivilege	916	smss.exe
Token: SeCreatePagefilePrivilege	916	smss.exe
Token: SeBackupPrivilege	916	smss.exe
Token: SeRestorePrivilege	916	smss.exe
Token: SeShutdownPrivilege	916	smss.exe
Token: SeDebugPrivilege	916	smss.exe
Token: SeSystemEnvironmentPrivilege	916	smss.exe
Token: SeChangeNotifyPrivilege	916	smss.exe
Token: SeRemoteShutdownPrivilege	916	smss.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4100	smss.exe

Suspicious use of WriteProcessMemory 48 IoCs

description	pid	Process	procid_target
PID 1764 wrote to memory of 3392	1764	JaffaCakes118_9069fa248edbd51b9843512162454a21.exe	87
PID 1764 wrote to memory of 3392	1764	JaffaCakes118_9069fa248edbd51b9843512162454a21.exe	87
PID 1764 wrote to memory of 3392	1764	JaffaCakes118_9069fa248edbd51b9843512162454a21.exe	87
PID 1364 wrote to memory of 4100	1364	cmd.exe	92
PID 1364 wrote to memory of 4100	1364	cmd.exe	92
PID 1364 wrote to memory of 4100	1364	cmd.exe	92
PID 3392 wrote to memory of 4532	3392	720.exe	93
PID 3392 wrote to memory of 4532	3392	720.exe	93
PID 3392 wrote to memory of 4532	3392	720.exe	93
PID 3392 wrote to memory of 1608	3392	720.exe	95
PID 3392 wrote to memory of 1608	3392	720.exe	95
PID 3392 wrote to memory of 1608	3392	720.exe	95
PID 4100 wrote to memory of 4576	4100	smss.exe	97
PID 4100 wrote to memory of 4576	4100	smss.exe	97
PID 4100 wrote to memory of 4576	4100	smss.exe	97
PID 4100 wrote to memory of 4648	4100	smss.exe	98
PID 4100 wrote to memory of 4648	4100	smss.exe	98
PID 4532 wrote to memory of 4600	4532	cmd.exe	100
PID 4532 wrote to memory of 4600	4532	cmd.exe	100
PID 4532 wrote to memory of 4600	4532	cmd.exe	100
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 4100 wrote to memory of 4644	4100	smss.exe	99
PID 1608 wrote to memory of 4712	1608	cmd.exe	101
PID 1608 wrote to memory of 4712	1608	cmd.exe	101
PID 1608 wrote to memory of 4712	1608	cmd.exe	101
PID 3392 wrote to memory of 916	3392	720.exe	103
PID 3392 wrote to memory of 916	3392	720.exe	103
PID 3392 wrote to memory of 916	3392	720.exe	103

Views/modifies file attributes 1 TTPs 2 IoCs

defense_evasion

Hidden Files and Directories

T1564.001

pid	Process
4600	attrib.exe
4712	attrib.exe

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9069fa248edbd51b9843512162454a21.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_9069fa248edbd51b9843512162454a21.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1764
- C:\Users\Admin\AppData\Local\Temp\720.exe
  C:\Users\Admin\AppData\Local\Temp\720.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3392
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\720.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4532
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\720.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4600
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1608
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:4712
- - C:\Users\Admin\AppData\Local\Temp\MSoft\smss.exe
    "C:\Users\Admin\AppData\Local\Temp\MSoft\smss.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:916

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\MSoft\smss.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Users\Admin\AppData\Local\Temp\MSoft\smss.exe
  C:\Users\Admin\AppData\Local\Temp\MSoft\smss.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:4576
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:4648
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4644

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

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

C:\Users\Admin\AppData\Local\Temp\720.exe

Filesize
690KB

MD5
b8ca3366ae8d8fcad042a9adc8849090

SHA1
8549b049837d20014c5835063e946eef0bba7366

SHA256
4135bf82080ae54c4187f155142824b544f707b927f7ea1667d273a8d0fb9a3c

SHA512
029ade93e6f92275f289103f3d863ed025c7a72685825b2340cd42080e4259eeec698bd5a7637804eea83b95bc493c3783a699eaed619e01456a2b99b3cc9770

Download Submit
memory/916-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1764-1-0x000000001B730000-0x000000001B7D6000-memory.dmp

Filesize
664KB

Download
memory/1764-2-0x00007FFEFE450000-0x00007FFEFEDF1000-memory.dmp

Filesize
9.6MB

Download
memory/1764-5-0x00007FFEFE450000-0x00007FFEFEDF1000-memory.dmp

Filesize
9.6MB

Download
memory/1764-10-0x00007FFEFE450000-0x00007FFEFEDF1000-memory.dmp

Filesize
9.6MB

Download
memory/1764-0-0x00007FFEFE705000-0x00007FFEFE706000-memory.dmp

Filesize
4KB

Download
memory/3392-8-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/3392-20-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-26-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-16-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

Filesize
4KB

Download
memory/4100-23-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-24-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-34-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-28-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-30-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-31-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-32-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-33-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4644-17-0x0000000000620000-0x0000000000621000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads