Overview

overview

10

Static

static

3

91cef1fc89...3d.exe

windows7-x64

10

91cef1fc89...3d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    91cef1fc89762a2c68fd4d0b588894db27c7ee6937b08cf69a2a7d744b6ea13d

  • Size

    128KB

  • Sample

    250306-htzy2ssm18

  • MD5

    5a0541a28eb8df7bb90cd926cb933d86

  • SHA1

    8a5c2e742b8bdb7745d0cdb41dca48b0b57d4fc6

  • SHA256

    91cef1fc89762a2c68fd4d0b588894db27c7ee6937b08cf69a2a7d744b6ea13d

  • SHA512

    4676d806839a7dce88210865550b156d97478adfe066c2fdb333e4cc158aae07d2501accf2e705235bb9282a8b1fdec38baefba1e823522fe1ca4c000762fb85

  • SSDEEP

    3072:3dwPR7n6gkM/fES1dzsYu15wKQnabwf1nFzwSAJB8Q:iPRTk08Adzhurk31n6xJmQ

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

      91cef1fc89762a2c68fd4d0b588894db27c7ee6937b08cf69a2a7d744b6ea13d

    • Size

      128KB

    • MD5

      5a0541a28eb8df7bb90cd926cb933d86

    • SHA1

      8a5c2e742b8bdb7745d0cdb41dca48b0b57d4fc6

    • SHA256

      91cef1fc89762a2c68fd4d0b588894db27c7ee6937b08cf69a2a7d744b6ea13d

    • SHA512

      4676d806839a7dce88210865550b156d97478adfe066c2fdb333e4cc158aae07d2501accf2e705235bb9282a8b1fdec38baefba1e823522fe1ca4c000762fb85

    • SSDEEP

      3072:3dwPR7n6gkM/fES1dzsYu15wKQnabwf1nFzwSAJB8Q:iPRTk08Adzhurk31n6xJmQ

    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