Overview

overview

10

Static

static

10

61c1c1ea4c...61.exe

windows7_x64

10

61c1c1ea4c...61.exe

windows10_x64

10

Analysis

  • max time kernel
    147s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    29/11/2021, 04:48

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General

  • Target
    61c1c1ea4c4ffb7fa6c1c707c8d41c61.exe
  • Size 65KB
  • Sample211129-fe5jwaeef5
  • SHA256 5d355666219db06acc93d01c0973c0c0a5db514b5af2c43dd7d97075d7b78914
  • MD5 SHA1 SHA512
Score
10/10
asyncratelizarat

Malware Config

Extracted

Family

  • asyncrat

Version

  • VenomRAT_HVNC 5.0.4

Botnet

  • Eliza

C2

  • 74.119.195.9:4821

Mutex

  • ElizaVenom

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    6

  • install

    true

  • install_file

    msvc.exe

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

    ratasyncrat
  • Async RAT payload 2 IoCs
    rat
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

    persistence
  • Delays execution with timeout.exe 1 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\61c1c1ea4c4ffb7fa6c1c707c8d41c61.exe
    "C:\Users\Admin\AppData\Local\Temp\61c1c1ea4c4ffb7fa6c1c707c8d41c61.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "msvc" /tr '"C:\Users\Admin\AppData\Roaming\msvc.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "msvc" /tr '"C:\Users\Admin\AppData\Roaming\msvc.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:680
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpDBEA.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2500
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1948
      • C:\Users\Admin\AppData\Roaming\msvc.exe
        "C:\Users\Admin\AppData\Roaming\msvc.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2664

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        memory/2664-128-0x000000001B500000-0x000000001B502000-memory.dmp
        Download

        memory/2716-115-0x00000000000E0000-0x00000000000E1000-memory.dmp
        Download

        memory/2716-117-0x000000001AC80000-0x000000001AC82000-memory.dmp
        Download