darkcomet | 261f6096b399657d161ad0b03a7bb2468ef0973c95ef773d08f3b143de79723f

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
27/01/2024, 09:57

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General

Target

79f037b4ad9b668ed7825b681f26a32d.exe
Size

808KB
MD5

79f037b4ad9b668ed7825b681f26a32d
SHA1

89335227923a78eb089fdd1a7935220930b80587
SHA256

261f6096b399657d161ad0b03a7bb2468ef0973c95ef773d08f3b143de79723f
SHA512

792a7e82170e291e89210208f9b08de599013569a853c71685973b3fe36a65b8dd23c0e5f8689d7fddc80192a6490a2359a58aa371b9c8513e4844074d7f440c
SSDEEP

24576:5pbvPk+0gYUM1zRuC/WL56enKiuF4U3Jv/0:5GngYV1AC/AQGKisZv/0

Score

10^/10

darkcomet 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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Roaming\\GoogleUpdater\\GoogleUpdater.exe"	79f037b4ad9b668ed7825b681f26a32d.exe

Checks BIOS information in registry 2 TTPs 2 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	79f037b4ad9b668ed7825b681f26a32d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	GoogleUpdater.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	79f037b4ad9b668ed7825b681f26a32d.exe

Executes dropped EXE 2 IoCs

pid	Process
4832	GoogleUpdater.exe
1240	GoogleUpdater.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-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\GoogleUpdater.exe = "C:\\Users\\Admin\\AppData\\Roaming\\GoogleUpdater\\GoogleUpdater.exe"	79f037b4ad9b668ed7825b681f26a32d.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1988 set thread context of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 4832 set thread context of 1240	4832	GoogleUpdater.exe	98

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 8 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\VendorIdentifier	GoogleUpdater.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	79f037b4ad9b668ed7825b681f26a32d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	79f037b4ad9b668ed7825b681f26a32d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	79f037b4ad9b668ed7825b681f26a32d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	79f037b4ad9b668ed7825b681f26a32d.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	GoogleUpdater.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	GoogleUpdater.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	GoogleUpdater.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	79f037b4ad9b668ed7825b681f26a32d.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	GoogleUpdater.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	79f037b4ad9b668ed7825b681f26a32d.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4892	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1240	GoogleUpdater.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeSecurityPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeTakeOwnershipPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeLoadDriverPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeSystemProfilePrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeSystemtimePrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeProfSingleProcessPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeIncBasePriorityPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeCreatePagefilePrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeBackupPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeRestorePrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeShutdownPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeDebugPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeSystemEnvironmentPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeChangeNotifyPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeRemoteShutdownPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeUndockPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeManageVolumePrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeImpersonatePrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeCreateGlobalPrivilege	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: 33	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: 34	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: 35	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: 36	3952	79f037b4ad9b668ed7825b681f26a32d.exe
Token: SeIncreaseQuotaPrivilege	1240	GoogleUpdater.exe
Token: SeSecurityPrivilege	1240	GoogleUpdater.exe
Token: SeTakeOwnershipPrivilege	1240	GoogleUpdater.exe
Token: SeLoadDriverPrivilege	1240	GoogleUpdater.exe
Token: SeSystemProfilePrivilege	1240	GoogleUpdater.exe
Token: SeSystemtimePrivilege	1240	GoogleUpdater.exe
Token: SeProfSingleProcessPrivilege	1240	GoogleUpdater.exe
Token: SeIncBasePriorityPrivilege	1240	GoogleUpdater.exe
Token: SeCreatePagefilePrivilege	1240	GoogleUpdater.exe
Token: SeBackupPrivilege	1240	GoogleUpdater.exe
Token: SeRestorePrivilege	1240	GoogleUpdater.exe
Token: SeShutdownPrivilege	1240	GoogleUpdater.exe
Token: SeDebugPrivilege	1240	GoogleUpdater.exe
Token: SeSystemEnvironmentPrivilege	1240	GoogleUpdater.exe
Token: SeChangeNotifyPrivilege	1240	GoogleUpdater.exe
Token: SeRemoteShutdownPrivilege	1240	GoogleUpdater.exe
Token: SeUndockPrivilege	1240	GoogleUpdater.exe
Token: SeManageVolumePrivilege	1240	GoogleUpdater.exe
Token: SeImpersonatePrivilege	1240	GoogleUpdater.exe
Token: SeCreateGlobalPrivilege	1240	GoogleUpdater.exe
Token: 33	1240	GoogleUpdater.exe
Token: 34	1240	GoogleUpdater.exe
Token: 35	1240	GoogleUpdater.exe
Token: 36	1240	GoogleUpdater.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1240	GoogleUpdater.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 1988 wrote to memory of 3952	1988	79f037b4ad9b668ed7825b681f26a32d.exe	87
PID 3952 wrote to memory of 4832	3952	79f037b4ad9b668ed7825b681f26a32d.exe	94
PID 3952 wrote to memory of 4832	3952	79f037b4ad9b668ed7825b681f26a32d.exe	94
PID 3952 wrote to memory of 4832	3952	79f037b4ad9b668ed7825b681f26a32d.exe	94
PID 3952 wrote to memory of 4424	3952	79f037b4ad9b668ed7825b681f26a32d.exe	96
PID 3952 wrote to memory of 4424	3952	79f037b4ad9b668ed7825b681f26a32d.exe	96
PID 3952 wrote to memory of 4424	3952	79f037b4ad9b668ed7825b681f26a32d.exe	96
PID 4424 wrote to memory of 4892	4424	cmd.exe	97
PID 4424 wrote to memory of 4892	4424	cmd.exe	97
PID 4424 wrote to memory of 4892	4424	cmd.exe	97
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98
PID 4832 wrote to memory of 1240	4832	GoogleUpdater.exe	98

C:\Users\Admin\AppData\Local\Temp\79f037b4ad9b668ed7825b681f26a32d.exe
"C:\Users\Admin\AppData\Local\Temp\79f037b4ad9b668ed7825b681f26a32d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1988
- C:\Users\Admin\AppData\Local\Temp\79f037b4ad9b668ed7825b681f26a32d.exe
  C:\Users\Admin\AppData\Local\Temp\79f037b4ad9b668ed7825b681f26a32d.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Checks computer location settings
  - Adds Run key to start application
  - Checks processor information in registry
  - Enumerates system info in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3952
- - C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe
    "C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:4832
  - - C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe
      C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe
      4⤵
      Checks BIOS information in registry
      Executes dropped EXE
      Checks processor information in registry
      Enumerates system info in registry
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1240
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4424
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 2
      4⤵
      Runs ping.exe
      PID:4892

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

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\_dcsc_.bat

Filesize
105B

MD5
3639b7a23a11c05f0e2a103b63fd2953

SHA1
f1d84bfddeea02ec1abef99ae65b354712783bc3

SHA256
0fc839bfc2d7a480ea1b4e5f4a8ad38af0a60eced479ef8a04e63b57af22cdc6

SHA512
a58d0fb379e2104058446c0c96dd761cd0dbab64fcee6c00d7cb29a4959f4eed753f72901ceb2481b24ed2a6670569b6e2a07a14f48c29fca72fa08988444d59

Download Submit
C:\Users\Admin\AppData\Roaming\GoogleUpdater\GoogleUpdater.exe

Filesize
808KB

MD5
79f037b4ad9b668ed7825b681f26a32d

SHA1
89335227923a78eb089fdd1a7935220930b80587

SHA256
261f6096b399657d161ad0b03a7bb2468ef0973c95ef773d08f3b143de79723f

SHA512
792a7e82170e291e89210208f9b08de599013569a853c71685973b3fe36a65b8dd23c0e5f8689d7fddc80192a6490a2359a58aa371b9c8513e4844074d7f440c

Download Submit
memory/1240-65-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-56-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-73-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-72-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-71-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-54-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-70-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-69-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-68-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-55-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/1240-57-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-66-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-59-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-58-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-67-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-52-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-61-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-60-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-53-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-62-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-63-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1240-64-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/1988-2-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download
memory/3952-0-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3952-3-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3952-1-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3952-44-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3952-6-0x0000000002400000-0x0000000002401000-memory.dmp

Filesize
4KB

Download
memory/3952-5-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/3952-4-0x0000000000400000-0x00000000004C8000-memory.dmp

Filesize
800KB

Download
memory/4832-50-0x0000000000400000-0x00000000004D4000-memory.dmp

Filesize
848KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads