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Overview

overview

10

Static

static

3

b1a0b6db90...cN.exe

windows7-x64

10

b1a0b6db90...cN.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b1a0b6db9026daf6c620cdb3e0b1a760b727e9e76d0caf6d43a93697eea1c0acN.exe

  • Size

    295KB

  • Sample

    241225-ytfheavrdx

  • MD5

    e2aae482bff0fca09e4aefef3fb22a40

  • SHA1

    91cb5a560885ec83825ec46e2d71990860e69715

  • SHA256

    b1a0b6db9026daf6c620cdb3e0b1a760b727e9e76d0caf6d43a93697eea1c0ac

  • SHA512

    7f02620328ad40e0c148a46908f022d7c01e4acf056c5d5f0a83014aac1857dbc695e7399fd5178e6acd764d3ab16e1491f3ae7e37061fa8a7b20e7a3bae252f

  • SSDEEP

    3072:N+mbZZx+D16fPhQ1UkY1UkVHe1rUtst76UtoUtFVgtRQ2c+tlB5xpWJLM77OkeY:N+Gnei21PY1PRe19V+tbFOLM77OLY

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

      b1a0b6db9026daf6c620cdb3e0b1a760b727e9e76d0caf6d43a93697eea1c0acN.exe

    • Size

      295KB

    • MD5

      e2aae482bff0fca09e4aefef3fb22a40

    • SHA1

      91cb5a560885ec83825ec46e2d71990860e69715

    • SHA256

      b1a0b6db9026daf6c620cdb3e0b1a760b727e9e76d0caf6d43a93697eea1c0ac

    • SHA512

      7f02620328ad40e0c148a46908f022d7c01e4acf056c5d5f0a83014aac1857dbc695e7399fd5178e6acd764d3ab16e1491f3ae7e37061fa8a7b20e7a3bae252f

    • SSDEEP

      3072:N+mbZZx+D16fPhQ1UkY1UkVHe1rUtst76UtoUtFVgtRQ2c+tlB5xpWJLM77OkeY:N+Gnei21PY1PRe19V+tbFOLM77OLY

    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

    • Berbew family

      berbew

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks