Overview

overview

10

Static

static

3

40d73355f1...db.exe

windows7-x64

10

40d73355f1...db.exe

windows10-2004-x64

10

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General

  • Target

    40d73355f1fc4bdf8688af2d5dfc455cc12d504069d3d84a2cd27d783c41cedb

  • Size

    90KB

  • Sample

    250307-ee7hsstry4

  • MD5

    7cfa7dbf2d15da0ef557b1c3414234df

  • SHA1

    67321577fa237cc38eb7c65cfd1ad06e744f5a87

  • SHA256

    40d73355f1fc4bdf8688af2d5dfc455cc12d504069d3d84a2cd27d783c41cedb

  • SHA512

    2f3c6b443232eefa31da65d503125f9cf98a39338d80787b5c0843a3a9d0d76391d98ed68528043d8b32b00dbe76e4f8551c7a1c4e72911baa5d1f6cd4c61dca

  • SSDEEP

    1536:7G5TVSyqWTqJHwoy6FHru2c8+KAssJXcqOxL8ZTzbcJ+7zNjSKOhYXYnLyVDMRNy:iPcJQZ2c8+KYsEXNjShi6enKNDVM

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

      40d73355f1fc4bdf8688af2d5dfc455cc12d504069d3d84a2cd27d783c41cedb

    • Size

      90KB

    • MD5

      7cfa7dbf2d15da0ef557b1c3414234df

    • SHA1

      67321577fa237cc38eb7c65cfd1ad06e744f5a87

    • SHA256

      40d73355f1fc4bdf8688af2d5dfc455cc12d504069d3d84a2cd27d783c41cedb

    • SHA512

      2f3c6b443232eefa31da65d503125f9cf98a39338d80787b5c0843a3a9d0d76391d98ed68528043d8b32b00dbe76e4f8551c7a1c4e72911baa5d1f6cd4c61dca

    • SSDEEP

      1536:7G5TVSyqWTqJHwoy6FHru2c8+KAssJXcqOxL8ZTzbcJ+7zNjSKOhYXYnLyVDMRNy:iPcJQZ2c8+KYsEXNjShi6enKNDVM

    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