darkcomet | 8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53

Analysis

max time kernel
150s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22/10/2024, 00:05

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General

Target

8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe
Size

520KB
MD5

818296cd80b27e4dc5b2b94b538e0252
SHA1

330cc71d4b9d915b84d15ff2beee0a12820d9962
SHA256

8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53
SHA512

56b160fd3f0819066ef61df5c20c769aa99993c03b3f73030d01e3e137f08ba0ecf9c9097a76d10bbd1de57de3f32d40bf41b03c6d860d89571aae0a56d6a1b6
SSDEEP

6144:f9GGo2CwtGg6eeihEfph2CMvvqqSaYwpncOeC66AOa0aFtVEQfTo1ozVqMbT:f9fC3hh29Ya77A90aFtDfT5IMbT

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

Executes dropped EXE 3 IoCs

pid	Process
2976	winupd.exe
2824	winupd.exe
2072	winupd.exe

Loads dropped DLL 2 IoCs

pid	Process
2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe
2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.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-1-5-21-2703099537-420551529-3771253338-1000\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 1464 set thread context of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 2976 set thread context of 2824	2976	winupd.exe	32
PID 2976 set thread context of 2072	2976	winupd.exe	33

UPX packed file 25 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2072-67-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-69-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-76-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-61-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-93-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2072-94-0x0000000000400000-0x00000000004B7000-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	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.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
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	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.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
2876	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
2476	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2072	winupd.exe
Token: SeSecurityPrivilege	2072	winupd.exe
Token: SeTakeOwnershipPrivilege	2072	winupd.exe
Token: SeLoadDriverPrivilege	2072	winupd.exe
Token: SeSystemProfilePrivilege	2072	winupd.exe
Token: SeSystemtimePrivilege	2072	winupd.exe
Token: SeProfSingleProcessPrivilege	2072	winupd.exe
Token: SeIncBasePriorityPrivilege	2072	winupd.exe
Token: SeCreatePagefilePrivilege	2072	winupd.exe
Token: SeBackupPrivilege	2072	winupd.exe
Token: SeRestorePrivilege	2072	winupd.exe
Token: SeShutdownPrivilege	2072	winupd.exe
Token: SeDebugPrivilege	2072	winupd.exe
Token: SeSystemEnvironmentPrivilege	2072	winupd.exe
Token: SeChangeNotifyPrivilege	2072	winupd.exe
Token: SeRemoteShutdownPrivilege	2072	winupd.exe
Token: SeUndockPrivilege	2072	winupd.exe
Token: SeManageVolumePrivilege	2072	winupd.exe
Token: SeImpersonatePrivilege	2072	winupd.exe
Token: SeCreateGlobalPrivilege	2072	winupd.exe
Token: 33	2072	winupd.exe
Token: 34	2072	winupd.exe
Token: 35	2072	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe
2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe
2976	winupd.exe
2824	winupd.exe
2072	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 1464 wrote to memory of 2536	1464	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	30
PID 2536 wrote to memory of 2976	2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	31
PID 2536 wrote to memory of 2976	2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	31
PID 2536 wrote to memory of 2976	2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	31
PID 2536 wrote to memory of 2976	2536	8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe	31
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2824	2976	winupd.exe	32
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2824 wrote to memory of 2876	2824	winupd.exe	34
PID 2824 wrote to memory of 2876	2824	winupd.exe	34
PID 2824 wrote to memory of 2876	2824	winupd.exe	34
PID 2824 wrote to memory of 2876	2824	winupd.exe	34
PID 2824 wrote to memory of 2876	2824	winupd.exe	34
PID 2824 wrote to memory of 2876	2824	winupd.exe	34
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2976 wrote to memory of 2072	2976	winupd.exe	33
PID 2876 wrote to memory of 2744	2876	ipconfig.exe	36
PID 2876 wrote to memory of 2744	2876	ipconfig.exe	36
PID 2876 wrote to memory of 2744	2876	ipconfig.exe	36
PID 2876 wrote to memory of 2744	2876	ipconfig.exe	36
PID 2744 wrote to memory of 2476	2744	cmd.exe	38
PID 2744 wrote to memory of 2476	2744	cmd.exe	38
PID 2744 wrote to memory of 2476	2744	cmd.exe	38
PID 2744 wrote to memory of 2476	2744	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe
"C:\Users\Admin\AppData\Local\Temp\8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1464
- C:\Users\Admin\AppData\Local\Temp\8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe
  "C:\Users\Admin\AppData\Local\Temp\8258b5e277641a60e091ac32e4ca7d8ddc8d4de565c61f4b4bd54d6472ebaa53.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\winupd.exe -notray
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2976
  - - 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:2824
    - - 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:2876
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\RKJRFFGB.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2744
        
        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:2476
  - - 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:2072

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

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Downloads

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

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
6a34919da159e33d074357af10cdde79

SHA1
ca5e4f2c84b85dbf27fda56ff97c2d8b4e655aa9

SHA256
4b34025b7ed013eead0b6cb28243c1d5eaa17b9addbe66c39671505375648976

SHA512
4442b83f7f3d4bb83832d3516a68f5b05f5595c582739eb3ce0224e8357edbe3ef7dce925758b627ee5c7b9aadef5d0296e495684006a1e325b8249de9a5ca8f

Download Submit
memory/1464-3-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1464-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1464-19-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1464-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1464-16-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/1464-15-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2072-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-94-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-67-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-69-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-61-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2072-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2536-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2536-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-21-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-74-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-8-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2536-6-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2824-78-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2876-56-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2976-70-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2976-35-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2976-49-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads