Overview

overview

10

Static

static

10

8c4fc20850...4b.exe

windows7-x64

10

8c4fc20850...4b.exe

windows10-2004-x64

10

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General

  • Target

    8c4fc208502303d36f6fc09f3a2b6e404093f4c7fa1570116a1d20e014e92f4b

  • Size

    123KB

  • Sample

    241012-acd19awclm

  • MD5

    2655e549802c1bec59db1a942229e92e

  • SHA1

    b47ac91e74dc64a8d528d7c0a0208f1b24c0c358

  • SHA256

    8c4fc208502303d36f6fc09f3a2b6e404093f4c7fa1570116a1d20e014e92f4b

  • SHA512

    00317c7899287da68a5bf348c0eb59617dbea78613890c9f04b799c80a13e74250f6095246098ec38cd5b782872377db69ff57ca39163d367d343783076bca2e

  • SSDEEP

    1536:nmVOKFhWNxqyteJJne6JhYTwd/Qgs5/gjkY/IUB3mRYSw1mir8CAjXoiDEuGg0oO:gWOTF/QjcxpRmRYSa9rR85DEn5k7r8

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

      8c4fc208502303d36f6fc09f3a2b6e404093f4c7fa1570116a1d20e014e92f4b

    • Size

      123KB

    • MD5

      2655e549802c1bec59db1a942229e92e

    • SHA1

      b47ac91e74dc64a8d528d7c0a0208f1b24c0c358

    • SHA256

      8c4fc208502303d36f6fc09f3a2b6e404093f4c7fa1570116a1d20e014e92f4b

    • SHA512

      00317c7899287da68a5bf348c0eb59617dbea78613890c9f04b799c80a13e74250f6095246098ec38cd5b782872377db69ff57ca39163d367d343783076bca2e

    • SSDEEP

      1536:nmVOKFhWNxqyteJJne6JhYTwd/Qgs5/gjkY/IUB3mRYSw1mir8CAjXoiDEuGg0oO:gWOTF/QjcxpRmRYSa9rR85DEn5k7r8

    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