Analysis

  • max time kernel
    142s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    27-08-2023 20:01

General

  • Target

    f9391638fc3c6dec9b7319d1c8adeebb.exe

  • Size

    68KB

  • MD5

    f9391638fc3c6dec9b7319d1c8adeebb

  • SHA1

    84e442eee76140490409219f0419dd58d2ea4820

  • SHA256

    1a9ad5f2a8a4cc93a5244200d46288948daec3ae9387d5fc66799d52d77a587c

  • SHA512

    38419ba8ce831a63a831a6ca1c27028a5a1b432be61fae885e684d5affa436413145dd1c5f07eb2e66ee3d26d8228878ed8608551f1a05de3ccd89e97e0e4a4e

  • SSDEEP

    1536:fJWnX1QHsrLhSBjCeeiIVrGbbXw+39wG5/FpqKmY7:fJWnX1QHsrLqjbeXGbbX739J/+z

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

Botnet

Venom Clients

C2

138.197.66.62:22256

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    true

  • install_file

    Match-Ventures.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9391638fc3c6dec9b7319d1c8adeebb.exe
    "C:\Users\Admin\AppData\Local\Temp\f9391638fc3c6dec9b7319d1c8adeebb.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Match-Ventures" /tr '"C:\Users\Admin\AppData\Roaming\Match-Ventures.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1876
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Match-Ventures" /tr '"C:\Users\Admin\AppData\Roaming\Match-Ventures.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2352
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB145.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2420
      • C:\Users\Admin\AppData\Roaming\Match-Ventures.exe
        "C:\Users\Admin\AppData\Roaming\Match-Ventures.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpB145.tmp.bat

    Filesize

    158B

    MD5

    b539a4d72d54054c4406d48e212e6b62

    SHA1

    68f6a73369962fa622ea26170d0f67f0294225bf

    SHA256

    96fefda830a5f94173211bca9b5b1fc63918794db0dbcc4680f6e376553dd15e

    SHA512

    6a3a362c117f72b4745d62379767069f0290365ea4240827ed352628e8e758032b7d316a48d784b2620142d1129708b2f7a8fa754a4f7d60855898cc99ab9624

  • C:\Users\Admin\AppData\Local\Temp\tmpB145.tmp.bat

    Filesize

    158B

    MD5

    b539a4d72d54054c4406d48e212e6b62

    SHA1

    68f6a73369962fa622ea26170d0f67f0294225bf

    SHA256

    96fefda830a5f94173211bca9b5b1fc63918794db0dbcc4680f6e376553dd15e

    SHA512

    6a3a362c117f72b4745d62379767069f0290365ea4240827ed352628e8e758032b7d316a48d784b2620142d1129708b2f7a8fa754a4f7d60855898cc99ab9624

  • C:\Users\Admin\AppData\Roaming\Match-Ventures.exe

    Filesize

    68KB

    MD5

    f9391638fc3c6dec9b7319d1c8adeebb

    SHA1

    84e442eee76140490409219f0419dd58d2ea4820

    SHA256

    1a9ad5f2a8a4cc93a5244200d46288948daec3ae9387d5fc66799d52d77a587c

    SHA512

    38419ba8ce831a63a831a6ca1c27028a5a1b432be61fae885e684d5affa436413145dd1c5f07eb2e66ee3d26d8228878ed8608551f1a05de3ccd89e97e0e4a4e

  • C:\Users\Admin\AppData\Roaming\Match-Ventures.exe

    Filesize

    68KB

    MD5

    f9391638fc3c6dec9b7319d1c8adeebb

    SHA1

    84e442eee76140490409219f0419dd58d2ea4820

    SHA256

    1a9ad5f2a8a4cc93a5244200d46288948daec3ae9387d5fc66799d52d77a587c

    SHA512

    38419ba8ce831a63a831a6ca1c27028a5a1b432be61fae885e684d5affa436413145dd1c5f07eb2e66ee3d26d8228878ed8608551f1a05de3ccd89e97e0e4a4e

  • memory/2000-1-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

    Filesize

    9.9MB

  • memory/2000-2-0x000000001B190000-0x000000001B210000-memory.dmp

    Filesize

    512KB

  • memory/2000-13-0x000007FEF5C50000-0x000007FEF663C000-memory.dmp

    Filesize

    9.9MB

  • memory/2000-14-0x00000000775F0000-0x0000000077799000-memory.dmp

    Filesize

    1.7MB

  • memory/2000-0-0x0000000001360000-0x0000000001378000-memory.dmp

    Filesize

    96KB

  • memory/2000-3-0x00000000775F0000-0x0000000077799000-memory.dmp

    Filesize

    1.7MB

  • memory/2116-18-0x0000000000190000-0x00000000001A8000-memory.dmp

    Filesize

    96KB

  • memory/2116-19-0x000007FEF5260000-0x000007FEF5C4C000-memory.dmp

    Filesize

    9.9MB

  • memory/2116-20-0x00000000001E0000-0x0000000000260000-memory.dmp

    Filesize

    512KB

  • memory/2116-21-0x00000000775F0000-0x0000000077799000-memory.dmp

    Filesize

    1.7MB

  • memory/2116-22-0x000007FEF5260000-0x000007FEF5C4C000-memory.dmp

    Filesize

    9.9MB

  • memory/2116-23-0x00000000001E0000-0x0000000000260000-memory.dmp

    Filesize

    512KB

  • memory/2116-24-0x00000000775F0000-0x0000000077799000-memory.dmp

    Filesize

    1.7MB