darkcomet | 670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
08-01-2025 01:29

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General

Target

670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
Size

520KB
MD5

63353c063c4943c1def96374f9188e7e
SHA1

2bf2ace84b557953bbf29cddfa4a94bd4fb965c9
SHA256

670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66
SHA512

69ed8cc7aeca24a974a76b7c07a8f7295a8ccf4b2f7c752f1925f30f7e12201a623ea2b4753a4f8384d1ae15ee2c99ba1abc59576f784bd6fbe37f502aad16af
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMb9:f9fC3hh29Ya77A90aFtDfT5IMb9

Score

10^/10

darkcomet privateeye discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

PrivateEye

ratblackshades.no-ip.biz:1604

Mutex

DC_MUTEX-ACC1R98

Attributes

gencode
8GG5LVVGljSF
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Executes dropped EXE 3 IoCs

pid	Process
2868	winupd.exe
2780	winupd.exe
2192	winupd.exe

Loads dropped DLL 4 IoCs

pid	Process
2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
2868	winupd.exe
2868	winupd.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\WinUpdate = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\winupd.exe -notray"	reg.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2920 set thread context of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2868 set thread context of 2780	2868	winupd.exe	32
PID 2868 set thread context of 2192	2868	winupd.exe	33

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2192-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-73-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-58-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-72-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-79-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-78-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-94-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-95-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-96-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-97-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-98-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2192-99-0x0000000000400000-0x00000000004B7000-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 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	ipconfig.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1364	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2356	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2192	winupd.exe
Token: SeSecurityPrivilege	2192	winupd.exe
Token: SeTakeOwnershipPrivilege	2192	winupd.exe
Token: SeLoadDriverPrivilege	2192	winupd.exe
Token: SeSystemProfilePrivilege	2192	winupd.exe
Token: SeSystemtimePrivilege	2192	winupd.exe
Token: SeProfSingleProcessPrivilege	2192	winupd.exe
Token: SeIncBasePriorityPrivilege	2192	winupd.exe
Token: SeCreatePagefilePrivilege	2192	winupd.exe
Token: SeBackupPrivilege	2192	winupd.exe
Token: SeRestorePrivilege	2192	winupd.exe
Token: SeShutdownPrivilege	2192	winupd.exe
Token: SeDebugPrivilege	2192	winupd.exe
Token: SeSystemEnvironmentPrivilege	2192	winupd.exe
Token: SeChangeNotifyPrivilege	2192	winupd.exe
Token: SeRemoteShutdownPrivilege	2192	winupd.exe
Token: SeUndockPrivilege	2192	winupd.exe
Token: SeManageVolumePrivilege	2192	winupd.exe
Token: SeImpersonatePrivilege	2192	winupd.exe
Token: SeCreateGlobalPrivilege	2192	winupd.exe
Token: 33	2192	winupd.exe
Token: 34	2192	winupd.exe
Token: 35	2192	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
2868	winupd.exe
2780	winupd.exe
2192	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2920 wrote to memory of 2972	2920	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	30
PID 2972 wrote to memory of 2868	2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	31
PID 2972 wrote to memory of 2868	2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	31
PID 2972 wrote to memory of 2868	2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	31
PID 2972 wrote to memory of 2868	2972	670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe	31
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2780	2868	winupd.exe	32
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2868 wrote to memory of 2192	2868	winupd.exe	33
PID 2780 wrote to memory of 1364	2780	winupd.exe	34
PID 2780 wrote to memory of 1364	2780	winupd.exe	34
PID 2780 wrote to memory of 1364	2780	winupd.exe	34
PID 2780 wrote to memory of 1364	2780	winupd.exe	34
PID 2780 wrote to memory of 1364	2780	winupd.exe	34
PID 2780 wrote to memory of 1364	2780	winupd.exe	34
PID 1364 wrote to memory of 2268	1364	ipconfig.exe	36
PID 1364 wrote to memory of 2268	1364	ipconfig.exe	36
PID 1364 wrote to memory of 2268	1364	ipconfig.exe	36
PID 1364 wrote to memory of 2268	1364	ipconfig.exe	36
PID 2268 wrote to memory of 2356	2268	cmd.exe	38
PID 2268 wrote to memory of 2356	2268	cmd.exe	38
PID 2268 wrote to memory of 2356	2268	cmd.exe	38
PID 2268 wrote to memory of 2356	2268	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
"C:\Users\Admin\AppData\Local\Temp\670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2920
- C:\Users\Admin\AppData\Local\Temp\670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe
  "C:\Users\Admin\AppData\Local\Temp\670b4d88c1338b43deefa0ea8a43c01b34428f2116b114ef4730ae751356da66.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2972
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2868
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2780
    - - C:\Windows\SysWOW64\ipconfig.exe
        
        "C:\Windows\system32\ipconfig.exe"
        5⤵
        System Location Discovery: System Language Discovery
        Gathers network information
        Suspicious use of WriteProcessMemory
        
        PID:1364
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\KMYYCUTB.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2268
        
        C:\Windows\SysWOW64\reg.exe
        
        REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WinUpdate /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray" /f
        7⤵
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Modifies registry key
        
        PID:2356
  - - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2192

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\winupd.exe

Filesize
520KB

MD5
63e77b99c6f4275ce9e5c6c86f6b877b

SHA1
190d57e1df1109686dc399efba89766866423ce9

SHA256
252d28d6ae4df6ce11159e83a0e34ed85c35e4afb3135f6bc442a51e6887ff36

SHA512
1202667754d832503e54c7651232ebbe36f4ebcc426d4cdb2454b2dced283e7ba7ed83f37356197719792c1c35e59194e3b1dcc0c1b632a73cf52f8e3e408db9

Download Submit
memory/1364-69-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2192-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-99-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-98-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-97-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-96-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-95-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-58-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2192-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2780-83-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2780-67-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2868-36-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2868-66-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2868-37-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2920-15-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2920-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2920-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2920-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2920-16-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2972-77-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-20-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2972-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads