Analysis

  • max time kernel
    146s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2025 11:38

General

  • Target

    aertyhfd.exe

  • Size

    74KB

  • MD5

    b8ffca27af2dd7eaf924544d9f4dc080

  • SHA1

    9cb5945789c67912ac20ab478bc0596b10db28a8

  • SHA256

    3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c

  • SHA512

    a9f3f7bbce8d658c5a6a8489ddb4d694865074f29499ee8856cff3bdd87758761d03466ccd509c24c7f68c14907f70c866ee1bbaad9ed22e51e4d500b8a58a43

  • SSDEEP

    1536:eUYNwcxKHXwzCtmPMV3JSaGLm43XHIls1bP/7jnQzcyLVclN:eUYicxK8WmPMV3wDn4s1bPTbQjBY

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:9999

Mutex

ytgjjhywchk

Attributes
  • delay

    1

  • install

    true

  • install_file

    RealtekHighDefinitionAudio.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • VenomRAT 3 IoCs

    Detects VenomRAT.

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

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

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\aertyhfd.exe
    "C:\Users\Admin\AppData\Local\Temp\aertyhfd.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RealtekHighDefinitionAudio" /tr '"C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1756
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "RealtekHighDefinitionAudio" /tr '"C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2964
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD7F7.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2092
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2152
      • C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe
        "C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2884

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpD7F7.tmp.bat

    Filesize

    170B

    MD5

    75403e1ed50ddbc5c3ac0591f58793bc

    SHA1

    a6f4fc80bdb0f4b60aba4f07e11470ebed1fa3e1

    SHA256

    a7a3a4f7cd42135f5b97eb17ec2a48a640fc720b2745c352237f8e37a8e5d0e7

    SHA512

    c5300cb8b0e476625d35f7454d55133f76423a503bb9960db89bfb7d8c063e636ebd36bca425064c4dae4d7d4bec101a8dda0a6905b22002fd8102b7b9106bf6

  • C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

    Filesize

    8B

    MD5

    cf759e4c5f14fe3eec41b87ed756cea8

    SHA1

    c27c796bb3c2fac929359563676f4ba1ffada1f5

    SHA256

    c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

    SHA512

    c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

  • C:\Users\Admin\AppData\Roaming\RealtekHighDefinitionAudio.exe

    Filesize

    74KB

    MD5

    b8ffca27af2dd7eaf924544d9f4dc080

    SHA1

    9cb5945789c67912ac20ab478bc0596b10db28a8

    SHA256

    3ea64a857060b493866007e05f14c9d55f33dfca30bf4b5e7082e2270d25ed9c

    SHA512

    a9f3f7bbce8d658c5a6a8489ddb4d694865074f29499ee8856cff3bdd87758761d03466ccd509c24c7f68c14907f70c866ee1bbaad9ed22e51e4d500b8a58a43

  • memory/2188-0-0x000007FEF5DD3000-0x000007FEF5DD4000-memory.dmp

    Filesize

    4KB

  • memory/2188-1-0x0000000001380000-0x0000000001398000-memory.dmp

    Filesize

    96KB

  • memory/2188-3-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2188-12-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2188-14-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2884-18-0x0000000000C80000-0x0000000000C98000-memory.dmp

    Filesize

    96KB