Overview

overview

10

Static

static

3

e54b21fb00...ca.exe

windows7-x64

10

e54b21fb00...ca.exe

windows10-2004-x64

10

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General

  • Target

    e54b21fb0020301b5afdf7fb2eaae93d07cdeebaa4b65575df6f5bd3cc44e2ca

  • Size

    109KB

  • Sample

    241123-fbd8hsylfy

  • MD5

    632bd76b965d0372fa14131a78d94586

  • SHA1

    92796ae8e18dbde0e7a17ef2bec5f9f0c6eebfac

  • SHA256

    e54b21fb0020301b5afdf7fb2eaae93d07cdeebaa4b65575df6f5bd3cc44e2ca

  • SHA512

    395ea8491576447788f9fab2ea4372f7d0e50ca94ff4f8d06ec78435e346f53d0cdfd97be3f241d929de597ec03add0a2202acb31607f04ec012d4abeecc6717

  • SSDEEP

    3072:1csVh1zBpstNwXoMnTAVAssJUG8fo3PXl9Z7S/yCsKh2EzZA/z:1fBGuXXo1Ggo35e/yCthvUz

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

      e54b21fb0020301b5afdf7fb2eaae93d07cdeebaa4b65575df6f5bd3cc44e2ca

    • Size

      109KB

    • MD5

      632bd76b965d0372fa14131a78d94586

    • SHA1

      92796ae8e18dbde0e7a17ef2bec5f9f0c6eebfac

    • SHA256

      e54b21fb0020301b5afdf7fb2eaae93d07cdeebaa4b65575df6f5bd3cc44e2ca

    • SHA512

      395ea8491576447788f9fab2ea4372f7d0e50ca94ff4f8d06ec78435e346f53d0cdfd97be3f241d929de597ec03add0a2202acb31607f04ec012d4abeecc6717

    • SSDEEP

      3072:1csVh1zBpstNwXoMnTAVAssJUG8fo3PXl9Z7S/yCsKh2EzZA/z:1fBGuXXo1Ggo35e/yCthvUz

    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