Overview

overview

10

Static

static

3

b41439532d...6a.exe

windows7-x64

10

b41439532d...6a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b41439532d1a03089d42e358f8dc8156a592e34b4eaafe2faeb7c47f0b6bf56a.exe

  • Size

    136KB

  • Sample

    241225-st87tswrhl

  • MD5

    2119da5ef646ff882acb3d28f0c1b376

  • SHA1

    2d2267616fe7d26a2de0834309caad5a1a83eca6

  • SHA256

    b41439532d1a03089d42e358f8dc8156a592e34b4eaafe2faeb7c47f0b6bf56a

  • SHA512

    a2bd2e6d75fa11c9324fce44d8ce466f8f0b8d3a4233f3541689fe392a0dd056176277878f32adb595ee87917338a67e959107d9708a001df88fe85822825561

  • SSDEEP

    1536:w4PjVwNhvTsIsfwBhDsBedJVi5lNnwiexvPXyDZfnbFjz0cZ44mjD9r823FQ75/v:w4PjVwN6qfwNwFVPXyDZjai/mjRrz3Or

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

      b41439532d1a03089d42e358f8dc8156a592e34b4eaafe2faeb7c47f0b6bf56a.exe

    • Size

      136KB

    • MD5

      2119da5ef646ff882acb3d28f0c1b376

    • SHA1

      2d2267616fe7d26a2de0834309caad5a1a83eca6

    • SHA256

      b41439532d1a03089d42e358f8dc8156a592e34b4eaafe2faeb7c47f0b6bf56a

    • SHA512

      a2bd2e6d75fa11c9324fce44d8ce466f8f0b8d3a4233f3541689fe392a0dd056176277878f32adb595ee87917338a67e959107d9708a001df88fe85822825561

    • SSDEEP

      1536:w4PjVwNhvTsIsfwBhDsBedJVi5lNnwiexvPXyDZfnbFjz0cZ44mjD9r823FQ75/v:w4PjVwN6qfwNwFVPXyDZjai/mjRrz3Or

    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