darkcomet | 39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1

Analysis

max time kernel
120s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 11:46

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General

Target

39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Size

349KB
MD5

79bd6985c18f9e447e559d65ab3a41b0
SHA1

5c87ee39398ed5eaf0f528f0e7772fab911f5615
SHA256

39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1
SHA512

cbfaf8e4c4e77fc9183ec03dc20a281f71e23f54f904bdf2858d5cdb7dd2bd926726e8726cf0d1887aab80d0bf52180be14db07e36dc2981b423ad403dbf3f1a
SSDEEP

6144:acNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL374nCINuzp:acW7KEZlPzCy37CCJz

Score

10^/10

darkcomet kurban discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Kurban

nidas.zapto.org:1604

Mutex

DC_MUTEX-WAZJRK7

Attributes

InstallPath
System\svchost.exe
gencode
YWCvHBvF4q4s
install
true
offline_keylogger
true
persistence
true
reg_key
System32

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:\\Windows\\system32\\System\\svchost.exe"	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe

Deletes itself 1 IoCs

pid	Process
3716	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
1632	svchost.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System32 = "C:\\Windows\\system32\\System\\svchost.exe"	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System32 = "C:\\Windows\\system32\\System\\svchost.exe"	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\System\svchost.exe	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
File opened for modification	C:\Windows\SysWOW64\System\svchost.exe	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
File opened for modification	C:\Windows\SysWOW64\System\	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe

UPX packed file 15 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2328-0-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/files/0x000d000000023a68-7.dat	upx
behavioral2/memory/2328-64-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-68-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-69-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-70-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-71-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-72-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-73-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-74-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-75-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-76-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-77-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-78-0x0000000000400000-0x00000000004E8000-memory.dmp	upx
behavioral2/memory/1632-79-0x0000000000400000-0x00000000004E8000-memory.dmp	upx

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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeSecurityPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeTakeOwnershipPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeLoadDriverPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeSystemProfilePrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeSystemtimePrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeProfSingleProcessPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeIncBasePriorityPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeCreatePagefilePrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeBackupPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeRestorePrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeShutdownPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeDebugPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeSystemEnvironmentPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeChangeNotifyPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeRemoteShutdownPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeUndockPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeManageVolumePrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeImpersonatePrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeCreateGlobalPrivilege	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: 33	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: 34	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: 35	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: 36	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
Token: SeIncreaseQuotaPrivilege	1632	svchost.exe
Token: SeSecurityPrivilege	1632	svchost.exe
Token: SeTakeOwnershipPrivilege	1632	svchost.exe
Token: SeLoadDriverPrivilege	1632	svchost.exe
Token: SeSystemProfilePrivilege	1632	svchost.exe
Token: SeSystemtimePrivilege	1632	svchost.exe
Token: SeProfSingleProcessPrivilege	1632	svchost.exe
Token: SeIncBasePriorityPrivilege	1632	svchost.exe
Token: SeCreatePagefilePrivilege	1632	svchost.exe
Token: SeBackupPrivilege	1632	svchost.exe
Token: SeRestorePrivilege	1632	svchost.exe
Token: SeShutdownPrivilege	1632	svchost.exe
Token: SeDebugPrivilege	1632	svchost.exe
Token: SeSystemEnvironmentPrivilege	1632	svchost.exe
Token: SeChangeNotifyPrivilege	1632	svchost.exe
Token: SeRemoteShutdownPrivilege	1632	svchost.exe
Token: SeUndockPrivilege	1632	svchost.exe
Token: SeManageVolumePrivilege	1632	svchost.exe
Token: SeImpersonatePrivilege	1632	svchost.exe
Token: SeCreateGlobalPrivilege	1632	svchost.exe
Token: 33	1632	svchost.exe
Token: 34	1632	svchost.exe
Token: 35	1632	svchost.exe
Token: 36	1632	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1632	svchost.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 3716	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	84
PID 2328 wrote to memory of 1632	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	85
PID 2328 wrote to memory of 1632	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	85
PID 2328 wrote to memory of 1632	2328	39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe	85

C:\Users\Admin\AppData\Local\Temp\39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe
"C:\Users\Admin\AppData\Local\Temp\39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1N.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:3716
- C:\Windows\SysWOW64\System\svchost.exe
  "C:\Windows\system32\System\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1632

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

C:\Windows\SysWOW64\System\svchost.exe

Filesize
349KB

MD5
79bd6985c18f9e447e559d65ab3a41b0

SHA1
5c87ee39398ed5eaf0f528f0e7772fab911f5615

SHA256
39057fa2fb023de558129e93ba0992ac046a3d3901a69117d43e3977bce503a1

SHA512
cbfaf8e4c4e77fc9183ec03dc20a281f71e23f54f904bdf2858d5cdb7dd2bd926726e8726cf0d1887aab80d0bf52180be14db07e36dc2981b423ad403dbf3f1a

Download Submit
memory/1632-70-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-76-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-71-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-65-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/1632-72-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-68-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-69-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-73-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-79-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-78-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-77-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-74-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/1632-75-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2328-0-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2328-64-0x0000000000400000-0x00000000004E8000-memory.dmp

Filesize
928KB

Download
memory/2328-1-0x0000000000B50000-0x0000000000B51000-memory.dmp

Filesize
4KB

Download
memory/3716-5-0x0000000000760000-0x0000000000761000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads