Overview

overview

10

Static

static

10

4fd6531cef...fN.exe

windows7-x64

10

4fd6531cef...fN.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4fd6531ceff8c197abaa98879ccbb437c235a5bf8cf5d0d61910bcffc945bd8fN

  • Size

    256KB

  • Sample

    241013-kfyvya1gpm

  • MD5

    4cb35aa0f638fa942184aef10679be60

  • SHA1

    1d79663b4bcc34d5fd55a23e59e7208c746cf13c

  • SHA256

    4fd6531ceff8c197abaa98879ccbb437c235a5bf8cf5d0d61910bcffc945bd8f

  • SHA512

    f4b11bbf78f1b91e2522d670bf98571544662890b834447f54cf8fb80272bee8125c0929544c0fdbec9479e68b8468dec83c434084b256ee2ba0f040960fbcc3

  • SSDEEP

    6144:jvDwJGz8YvhV+tbFOLM77OLnFe3HCqxNRmJ4PavntV:jvDWT1tsNePmjvtV

Score
10/10
berbewbackdoordiscoverypersistence

Malware Config

Extracted

Family

berbew

C2

http://f/wcmd.htm

http://f/ppslog.php

http://f/piplog.php?%s:%i:%i:%s:%09u:%i:%02d:%02d:%02d

Targets

    • Target

      4fd6531ceff8c197abaa98879ccbb437c235a5bf8cf5d0d61910bcffc945bd8fN

    • Size

      256KB

    • MD5

      4cb35aa0f638fa942184aef10679be60

    • SHA1

      1d79663b4bcc34d5fd55a23e59e7208c746cf13c

    • SHA256

      4fd6531ceff8c197abaa98879ccbb437c235a5bf8cf5d0d61910bcffc945bd8f

    • SHA512

      f4b11bbf78f1b91e2522d670bf98571544662890b834447f54cf8fb80272bee8125c0929544c0fdbec9479e68b8468dec83c434084b256ee2ba0f040960fbcc3

    • SSDEEP

      6144:jvDwJGz8YvhV+tbFOLM77OLnFe3HCqxNRmJ4PavntV:jvDWT1tsNePmjvtV

    Score
    10/10
    berbewbackdoordiscoverypersistence

    • Adds autorun key to be loaded by Explorer.exe on startup

      persistence

    • Berbew

      Berbew is a backdoor written in C++.

      backdoorberbew

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks