Analysis

  • max time kernel
    137s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    05-08-2024 01:30

General

  • Target

    7ce2d225442252064d744be1c38e9c1572dd355bbbaf7fa411ce79e41288dfca.exe

  • Size

    64KB

  • MD5

    919b43661894503a00d44ffd1174d613

  • SHA1

    c510009fb7bad735e35a10c0ebe925d730ca961f

  • SHA256

    7ce2d225442252064d744be1c38e9c1572dd355bbbaf7fa411ce79e41288dfca

  • SHA512

    5019e86e2c0585aa59d7c14b4a0b03c911440487b9bd843db0a6138861e46274f17d72deea09429b650c5976aa9bf03d7427d65b26cc4b65c0c0bd9f1b19997b

  • SSDEEP

    768:N9aGzWs/9PiPJ5eit9JSTLavfU4OnsD3q66T1+4SCv7mqb2nRpwH1oDjoUhPGnPP:vaW90TekUJyq6OqGbbUwDuGnPpqKmY7

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

5.0.5

C2

server.underground-cheat.xyz:4449

Mutex

Venom_RAT_HVNC_Mutex_Venom RAT_HVNC

Attributes
  • delay

    1

  • install

    true

  • install_file

    Host Process for Windows.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\7ce2d225442252064d744be1c38e9c1572dd355bbbaf7fa411ce79e41288dfca.exe
    "C:\Users\Admin\AppData\Local\Temp\7ce2d225442252064d744be1c38e9c1572dd355bbbaf7fa411ce79e41288dfca.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2324
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Host Process for Windows" /tr '"C:\Users\Admin\AppData\Roaming\Host Process for Windows.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "Host Process for Windows" /tr '"C:\Users\Admin\AppData\Roaming\Host Process for Windows.exe"'
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2756
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpF9F8.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2116
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:2776
      • C:\Users\Admin\AppData\Roaming\Host Process for Windows.exe
        "C:\Users\Admin\AppData\Roaming\Host Process for Windows.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF9F8.tmp.bat

    Filesize

    168B

    MD5

    2e26778bb455f7e55148966822d009ad

    SHA1

    a63488bdb9e69bf6e45936c83cb30e072df52155

    SHA256

    c398957fec970a93e86d439b53f504f64bef4e163fd4ce05811aa2ae9e8c68df

    SHA512

    83c61c108f31061dc2086b2b357d17ec76a78d8dd85db558201d5d47b5e58e7ef4b8100ec4508b1bbbd60ac844a3b663e42f2f516c8d00a8dc8778353fc07fe1

  • C:\Users\Admin\AppData\Roaming\Host Process for Windows.exe

    Filesize

    64KB

    MD5

    919b43661894503a00d44ffd1174d613

    SHA1

    c510009fb7bad735e35a10c0ebe925d730ca961f

    SHA256

    7ce2d225442252064d744be1c38e9c1572dd355bbbaf7fa411ce79e41288dfca

    SHA512

    5019e86e2c0585aa59d7c14b4a0b03c911440487b9bd843db0a6138861e46274f17d72deea09429b650c5976aa9bf03d7427d65b26cc4b65c0c0bd9f1b19997b

  • memory/2324-0-0x000007FEF5D03000-0x000007FEF5D04000-memory.dmp

    Filesize

    4KB

  • memory/2324-1-0x0000000000B50000-0x0000000000B66000-memory.dmp

    Filesize

    88KB

  • memory/2324-2-0x000007FEF5D00000-0x000007FEF66EC000-memory.dmp

    Filesize

    9.9MB

  • memory/2324-3-0x000007FEF5D00000-0x000007FEF66EC000-memory.dmp

    Filesize

    9.9MB

  • memory/2324-12-0x000007FEF5D00000-0x000007FEF66EC000-memory.dmp

    Filesize

    9.9MB

  • memory/2708-17-0x0000000001090000-0x00000000010A6000-memory.dmp

    Filesize

    88KB