darkcomet | 273302cd9a562a7d510247c1fb5142320f807aaf302f9c2c85b2d1de50bd54ac

Analysis

max time kernel
149s
max time network
112s
platform
windows10-2004_x64
resource
win10v2004-20250410-en
resource tags

arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system
submitted
11/04/2025, 20:57

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General

Target

JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Size

811KB
MD5

afe42016a936e490b4ac1b6d97131fe7
SHA1

22b8ef5c7c6fb65b5bc8df1ad93fb498fc4c53fc
SHA256

273302cd9a562a7d510247c1fb5142320f807aaf302f9c2c85b2d1de50bd54ac
SHA512

91f5ea8490b675c3e4e1fc5d0c46eae685fa28eaaf3df26721b4035ccc6dff78f0cfb16906cc58f6468d8e11d84219f9dd889127d52227a8693511d77b60d5a7
SSDEEP

12288:baAchpWsuVTv7ItY8XljyypHP7cOLBev03hlULsmWZ++09ZcKDVsgdEFIIhII:uAEENIq8XwyVPQclDq/+WnpsS

Score

10^/10

darkcomet test discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Test

127.0.0.1:1604

Mutex

DC_MUTEX-UY731LJ

Attributes

InstallPath
Windupdt\winupd1ate.exe
gencode
Y=RvBUweF7Y4
install
true
offline_keylogger
true
password
1kn0w1t1
persistence
true
reg_key
winu1pdater

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:\\Windupdt\\winupd1ate.exe"	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe

Checks BIOS information in registry 2 TTPs 3 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	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winupd1ate.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-1-5-21-3078542121-369484597-920690335-1000\Control Panel\International\Geo\Nation	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe

Executes dropped EXE 2 IoCs

pid	Process
5580	winupd1ate.exe
5548	winupd1ate.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-1-5-21-3078542121-369484597-920690335-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winu1pdater = "C:\\Windupdt\\winupd1ate.exe"	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.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 3 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	winupd1ate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd1ate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe

Checks processor information in registry 2 TTPs 12 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	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupd1ate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winupd1ate.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupd1ate.exe

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupd1ate.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winupd1ate.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeSecurityPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeTakeOwnershipPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeLoadDriverPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeSystemProfilePrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeSystemtimePrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeProfSingleProcessPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeIncBasePriorityPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeCreatePagefilePrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeBackupPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeRestorePrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeShutdownPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeDebugPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeSystemEnvironmentPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeChangeNotifyPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeRemoteShutdownPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeUndockPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeManageVolumePrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeImpersonatePrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeCreateGlobalPrivilege	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: 33	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: 34	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: 35	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: 36	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
Token: SeIncreaseQuotaPrivilege	5580	winupd1ate.exe
Token: SeSecurityPrivilege	5580	winupd1ate.exe
Token: SeTakeOwnershipPrivilege	5580	winupd1ate.exe
Token: SeLoadDriverPrivilege	5580	winupd1ate.exe
Token: SeSystemProfilePrivilege	5580	winupd1ate.exe
Token: SeSystemtimePrivilege	5580	winupd1ate.exe
Token: SeProfSingleProcessPrivilege	5580	winupd1ate.exe
Token: SeIncBasePriorityPrivilege	5580	winupd1ate.exe
Token: SeCreatePagefilePrivilege	5580	winupd1ate.exe
Token: SeBackupPrivilege	5580	winupd1ate.exe
Token: SeRestorePrivilege	5580	winupd1ate.exe
Token: SeShutdownPrivilege	5580	winupd1ate.exe
Token: SeDebugPrivilege	5580	winupd1ate.exe
Token: SeSystemEnvironmentPrivilege	5580	winupd1ate.exe
Token: SeChangeNotifyPrivilege	5580	winupd1ate.exe
Token: SeRemoteShutdownPrivilege	5580	winupd1ate.exe
Token: SeUndockPrivilege	5580	winupd1ate.exe
Token: SeManageVolumePrivilege	5580	winupd1ate.exe
Token: SeImpersonatePrivilege	5580	winupd1ate.exe
Token: SeCreateGlobalPrivilege	5580	winupd1ate.exe
Token: 33	5580	winupd1ate.exe
Token: 34	5580	winupd1ate.exe
Token: 35	5580	winupd1ate.exe
Token: 36	5580	winupd1ate.exe
Token: SeIncreaseQuotaPrivilege	5548	winupd1ate.exe
Token: SeSecurityPrivilege	5548	winupd1ate.exe
Token: SeTakeOwnershipPrivilege	5548	winupd1ate.exe
Token: SeLoadDriverPrivilege	5548	winupd1ate.exe
Token: SeSystemProfilePrivilege	5548	winupd1ate.exe
Token: SeSystemtimePrivilege	5548	winupd1ate.exe
Token: SeProfSingleProcessPrivilege	5548	winupd1ate.exe
Token: SeIncBasePriorityPrivilege	5548	winupd1ate.exe
Token: SeCreatePagefilePrivilege	5548	winupd1ate.exe
Token: SeBackupPrivilege	5548	winupd1ate.exe
Token: SeRestorePrivilege	5548	winupd1ate.exe
Token: SeShutdownPrivilege	5548	winupd1ate.exe
Token: SeDebugPrivilege	5548	winupd1ate.exe
Token: SeSystemEnvironmentPrivilege	5548	winupd1ate.exe
Token: SeChangeNotifyPrivilege	5548	winupd1ate.exe
Token: SeRemoteShutdownPrivilege	5548	winupd1ate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5580	winupd1ate.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5764 wrote to memory of 5580	5764	cmd.exe	87
PID 5764 wrote to memory of 5580	5764	cmd.exe	87
PID 5764 wrote to memory of 5580	5764	cmd.exe	87
PID 1596 wrote to memory of 5548	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe	89
PID 1596 wrote to memory of 5548	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe	89
PID 1596 wrote to memory of 5548	1596	JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_afe42016a936e490b4ac1b6d97131fe7.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- 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:1596
- C:\Windupdt\winupd1ate.exe
  "C:\Windupdt\winupd1ate.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:5548

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Windupdt\winupd1ate.exe
1⤵
- Suspicious use of WriteProcessMemory
PID:5764
- C:\Windupdt\winupd1ate.exe
  C:\Windupdt\winupd1ate.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - 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:5580

Network

MITRE ATT&CK Enterprise v16

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

C:\Windupdt\winupd1ate.exe

Filesize
811KB

MD5
afe42016a936e490b4ac1b6d97131fe7

SHA1
22b8ef5c7c6fb65b5bc8df1ad93fb498fc4c53fc

SHA256
273302cd9a562a7d510247c1fb5142320f807aaf302f9c2c85b2d1de50bd54ac

SHA512
91f5ea8490b675c3e4e1fc5d0c46eae685fa28eaaf3df26721b4035ccc6dff78f0cfb16906cc58f6468d8e11d84219f9dd889127d52227a8693511d77b60d5a7

Download Submit
memory/1596-0-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/1596-13-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5548-14-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-18-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-21-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-16-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-17-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-11-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/5580-19-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-20-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-15-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-22-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-23-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-24-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-25-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-26-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-27-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/5580-28-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads