Overview

overview

10

Static

static

3

4b36c20d6d...9e.exe

windows7-x64

10

4b36c20d6d...9e.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4b36c20d6d4daf02412f42ae779a16650414d33d8d0e7807dfdc1e8cc096ad9e

  • Size

    512KB

  • Sample

    250306-ba58dstwhw

  • MD5

    a724a75d62231ea59ebafa4d6b316d7f

  • SHA1

    33fe1bdff742f5aa54419d5103126759b5fa1504

  • SHA256

    4b36c20d6d4daf02412f42ae779a16650414d33d8d0e7807dfdc1e8cc096ad9e

  • SHA512

    ef423508282df7070307bdaa1932f943f8ed303448685e855a3f3f1aecc2c29e71a9851fe65318a7039c13e6acfa1f3e4cb211ff30423ab04a9edaa3506ec66e

  • SSDEEP

    12288:VlbEOYkGyXu1jGG1ws5iETdqvZNemWrsiLk6mqgSg9:VloOYkGyXsGG1ws5ipr

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

      4b36c20d6d4daf02412f42ae779a16650414d33d8d0e7807dfdc1e8cc096ad9e

    • Size

      512KB

    • MD5

      a724a75d62231ea59ebafa4d6b316d7f

    • SHA1

      33fe1bdff742f5aa54419d5103126759b5fa1504

    • SHA256

      4b36c20d6d4daf02412f42ae779a16650414d33d8d0e7807dfdc1e8cc096ad9e

    • SHA512

      ef423508282df7070307bdaa1932f943f8ed303448685e855a3f3f1aecc2c29e71a9851fe65318a7039c13e6acfa1f3e4cb211ff30423ab04a9edaa3506ec66e

    • SSDEEP

      12288:VlbEOYkGyXu1jGG1ws5iETdqvZNemWrsiLk6mqgSg9:VloOYkGyXsGG1ws5ipr

    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