darkcomet | 7bd506ab67b1e243bffc434eeb932fea1ac816ff8e6dc802a16f4ae9198084b3

Analysis

max time kernel
149s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
14/10/2026, 01:05

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General

Target
jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Size 940KB
Sample261014-bftfsadz21
SHA256 7bd506ab67b1e243bffc434eeb932fea1ac816ff8e6dc802a16f4ae9198084b3
MD5 2f6ed0040495b9bfb323cb173cfade32
SHA1 4189502b77866d27c6c68252d7a61737847ffa8d
SHA512 bd9984357c374ec6d6e2e277ea3766dcd4e12e9ab30f05f5efe6271cd8cc8b4ce393fe07aa040eb5e583a4433ac0634b5789e78423a2c2e5e0adb9e33ba4e777
SSDEEP 24576:Lk/aBSBEJMG7JwgD2NiG5n3vO3TrBm6F0uS:AA/ah
TLSH
T1F0259DD8EDB50AA5D5E9ED3447DC39D099601F25C0A7FF069836FA293D825C0ADF808E
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

hacker_naab discovery darkcomet persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

HAcker_Naab

obscurpuissance.myftp.org:1604

Mutex

DC_MUTEX-XDENNRC

Attributes

InstallPath
Windupdt\winupdate.exe
gencode
RbfMVWdKyk7L
install
true
offline_keylogger
true
password
pcod2650
persistence
true
reg_key
winupdater

rc4.plain

Signatures

Family: 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:\\Windupdt\\winupdate.exe"	winhost32.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	winhost32.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-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation	winhost32.exe

Executes dropped EXE 3 IoCs

pid	Process
968	winhost32.exe
2120	winupdate.exe
3184	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-1-5-21-939655444-3071939294-1401108526-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe"	winhost32.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1524 set thread context of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89

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	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winhost32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupdate.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winhost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	winhost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	winhost32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	winhost32.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	winhost32.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	winhost32.exe

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe
Token: SeIncreaseQuotaPrivilege	968	winhost32.exe
Token: SeSecurityPrivilege	968	winhost32.exe
Token: SeTakeOwnershipPrivilege	968	winhost32.exe
Token: SeLoadDriverPrivilege	968	winhost32.exe
Token: SeSystemProfilePrivilege	968	winhost32.exe
Token: SeSystemtimePrivilege	968	winhost32.exe
Token: SeProfSingleProcessPrivilege	968	winhost32.exe
Token: SeIncBasePriorityPrivilege	968	winhost32.exe
Token: SeCreatePagefilePrivilege	968	winhost32.exe
Token: SeBackupPrivilege	968	winhost32.exe
Token: SeRestorePrivilege	968	winhost32.exe
Token: SeShutdownPrivilege	968	winhost32.exe
Token: SeDebugPrivilege	968	winhost32.exe
Token: SeSystemEnvironmentPrivilege	968	winhost32.exe
Token: SeChangeNotifyPrivilege	968	winhost32.exe
Token: SeRemoteShutdownPrivilege	968	winhost32.exe
Token: SeUndockPrivilege	968	winhost32.exe
Token: SeManageVolumePrivilege	968	winhost32.exe
Token: SeImpersonatePrivilege	968	winhost32.exe
Token: SeCreateGlobalPrivilege	968	winhost32.exe
Token: 33	968	winhost32.exe
Token: 34	968	winhost32.exe
Token: 35	968	winhost32.exe
Token: 36	968	winhost32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 1524 wrote to memory of 968	1524	jaffacakes118_HEUR.Trojan.Win32.Generic.exe	89
PID 968 wrote to memory of 2116	968	winhost32.exe	90
PID 968 wrote to memory of 3184	968	winhost32.exe	94

C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe
"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_HEUR.Trojan.Win32.Generic.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1524
- C:\Users\Admin\AppData\Local\Temp\winhost32.exe
  C:\Users\Admin\AppData\Local\Temp\\winhost32.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:968
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:2116
- - C:\Windupdt\winupdate.exe
    "C:\Windupdt\winupdate.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3184

C:\Windupdt\winupdate.exe
C:\Windupdt\winupdate.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2120

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

winhost32.exe

Path C:\Users\Admin\AppData\Local\Temp\winhost32.exe
Size 5KB
SHA256 9236208e312b2f47a0ef40e59fc0f364fc8e401717e1e46555c26bec8ab3de1f
MD5 d2ed8fa3208e702b7d61728af768eed1
SHA1 54094aa272cb866a46c2ca5b56f4a094e0f48ffb
SHA512 42442dc0b98f2abaea0c6516602d80df8a2a680278ecdc2b96fe5ce44685f7442347fd4ad13d9d99e0330cf0be7c0e9bbf22bd78c0173066221e430203c76313
SSDEEP 48:yMzNTc1bXQkokdBXUXvAWY7EWKfeJYBcZ/BCKx9DDkVVlERU:p1aAkokdJUXlWEWwOQc5MK3Dw66
TLSH
T127C1344BAB99C8B0C9FD447D6E1B5F54FEA81C80175081BB0BA37AC9E9319C74E2479C
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/968-4-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/968-7-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/968-9-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/968-11-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/968-12-0x00000000022D0000-0x00000000022D1000-memory.dmp

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memory/968-13-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/968-14-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/968-46-0x0000000000400000-0x00000000004B8000-memory.dmp

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memory/1524-0-0x00000000014C0000-0x00000000014D0000-memory.dmp

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memory/1524-1-0x0000000074632000-0x0000000074634000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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