darkcomet | 4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41

Analysis

max time kernel
120s
max time network
16s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16-11-2024 23:03

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General

Target

4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe
Size

520KB
MD5

d4d59021825d613808c6d07794e1e2d5
SHA1

b570d4498144c6c028b4a87a28b8a64f7b698391
SHA256

4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41
SHA512

f518190fbfda39eee2d2c7825d353d7b86c73158cbfa7bf0026760488b6bdf4dc1432a8f79882a255cda11920a19ba4fea78e070d48e4208187964686cab59f2
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

Extracted

Family

darkcomet

Attributes

gencode
install
false
offline_keylogger
false
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
2256	winupd.exe
2204	winupd.exe
2452	winupd.exe

Loads dropped DLL 2 IoCs

pid	Process
2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe
2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.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-1-5-21-2872745919-2748461613-2989606286-1000\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 2384 set thread context of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2256 set thread context of 2204	2256	winupd.exe	32
PID 2256 set thread context of 2452	2256	winupd.exe	33

UPX packed file 26 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2452-63-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-71-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-70-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-59-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-57-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-75-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-74-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-80-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-81-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-82-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-83-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-84-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-85-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-86-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-87-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-88-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-89-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-90-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-91-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-92-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2452-93-0x0000000000400000-0x00000000004B7000-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	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.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	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.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
2784	ipconfig.exe

Modifies registry key 1 TTPs 1 IoCs

Modify Registry

T1112

pid	Process
3032	reg.exe

Suspicious use of AdjustPrivilegeToken 23 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2452	winupd.exe
Token: SeSecurityPrivilege	2452	winupd.exe
Token: SeTakeOwnershipPrivilege	2452	winupd.exe
Token: SeLoadDriverPrivilege	2452	winupd.exe
Token: SeSystemProfilePrivilege	2452	winupd.exe
Token: SeSystemtimePrivilege	2452	winupd.exe
Token: SeProfSingleProcessPrivilege	2452	winupd.exe
Token: SeIncBasePriorityPrivilege	2452	winupd.exe
Token: SeCreatePagefilePrivilege	2452	winupd.exe
Token: SeBackupPrivilege	2452	winupd.exe
Token: SeRestorePrivilege	2452	winupd.exe
Token: SeShutdownPrivilege	2452	winupd.exe
Token: SeDebugPrivilege	2452	winupd.exe
Token: SeSystemEnvironmentPrivilege	2452	winupd.exe
Token: SeChangeNotifyPrivilege	2452	winupd.exe
Token: SeRemoteShutdownPrivilege	2452	winupd.exe
Token: SeUndockPrivilege	2452	winupd.exe
Token: SeManageVolumePrivilege	2452	winupd.exe
Token: SeImpersonatePrivilege	2452	winupd.exe
Token: SeCreateGlobalPrivilege	2452	winupd.exe
Token: 33	2452	winupd.exe
Token: 34	2452	winupd.exe
Token: 35	2452	winupd.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe
2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe
2256	winupd.exe
2204	winupd.exe
2452	winupd.exe

Suspicious use of WriteProcessMemory 44 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2384 wrote to memory of 2072	2384	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	30
PID 2072 wrote to memory of 2256	2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	31
PID 2072 wrote to memory of 2256	2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	31
PID 2072 wrote to memory of 2256	2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	31
PID 2072 wrote to memory of 2256	2072	4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe	31
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2204	2256	winupd.exe	32
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2256 wrote to memory of 2452	2256	winupd.exe	33
PID 2204 wrote to memory of 2784	2204	winupd.exe	34
PID 2204 wrote to memory of 2784	2204	winupd.exe	34
PID 2204 wrote to memory of 2784	2204	winupd.exe	34
PID 2204 wrote to memory of 2784	2204	winupd.exe	34
PID 2204 wrote to memory of 2784	2204	winupd.exe	34
PID 2204 wrote to memory of 2784	2204	winupd.exe	34
PID 2784 wrote to memory of 2692	2784	ipconfig.exe	36
PID 2784 wrote to memory of 2692	2784	ipconfig.exe	36
PID 2784 wrote to memory of 2692	2784	ipconfig.exe	36
PID 2784 wrote to memory of 2692	2784	ipconfig.exe	36
PID 2692 wrote to memory of 3032	2692	cmd.exe	38
PID 2692 wrote to memory of 3032	2692	cmd.exe	38
PID 2692 wrote to memory of 3032	2692	cmd.exe	38
PID 2692 wrote to memory of 3032	2692	cmd.exe	38

C:\Users\Admin\AppData\Local\Temp\4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe
"C:\Users\Admin\AppData\Local\Temp\4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Users\Admin\AppData\Local\Temp\4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe
  "C:\Users\Admin\AppData\Local\Temp\4f6c3238851f570e902be85c53d9bcb4f589cb6fc2c652fd6ac5509ff26acc41.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2072
- - 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:2256
  - - 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:2204
    - - 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:2784
      - C:\Windows\SysWOW64\cmd.exe
        
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\HQIESXJK.bat" "
        6⤵
        System Location Discovery: System Language Discovery
        Suspicious use of WriteProcessMemory
        
        PID:2692
        
        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:3032
  - - 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:2452

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\HQIESXJK.bat

Filesize
151B

MD5
cac890d00365d07b9ca89def17cc3a36

SHA1
6fa99679ede791c16b5d3e6d243a98e8bbdb7eab

SHA256
4f98ddee89760080a5c8a93666d2f5c97be52b741265ef4d1ce9aaebf05f12da

SHA512
124dc0b18e13425bde43bcbbe2a99005928e398bffcb458d498aac9e754bc5b92b703270667800876c60b0801343f2de8c6b9a1eebafd80bb4f6d5dc295dd9f1

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

Filesize
520KB

MD5
ae82b9878b95be99a333180cd3dde385

SHA1
4fbf1409ac99670e2c505b76a66e2b38142559bc

SHA256
4287cc5c6db750dd08bcc47c305e7a57b90344487f3cc140765e1d4f3266ff84

SHA512
073af4e23350b68ae100e262ce9076548195ab4efc661488db252f1973ef87801cfd72911a12bc90ce0976e4b6187608f4cbce6a7b3d6880056a1fc949b6aa75

Download Submit
memory/2072-3-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2072-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2072-18-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2072-65-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2072-7-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2072-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2204-79-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/2256-61-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2256-34-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2256-46-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2384-19-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2384-11-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2384-17-0x0000000000400000-0x0000000000483000-memory.dmp

Filesize
524KB

Download
memory/2384-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2452-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-63-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-93-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-59-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-84-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-85-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-86-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-87-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-88-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-89-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-90-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-91-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2452-92-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2784-72-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads