Overview

overview

10

Static

static

3

4fcfc2fbfb...1N.exe

windows7-x64

10

4fcfc2fbfb...1N.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4fcfc2fbfb3ccb29a90c0106d8f2b99ab54b3b3cc3acd6533c25018009fd26c1N.exe

  • Size

    74KB

  • Sample

    241208-bkj3xazkdr

  • MD5

    985a66d0c5b1fef4b0f3b30dc99dd490

  • SHA1

    88a198f5146ee5bed503c81fa4aa419ca087b9a5

  • SHA256

    4fcfc2fbfb3ccb29a90c0106d8f2b99ab54b3b3cc3acd6533c25018009fd26c1

  • SHA512

    f56a8ae1d2a0181c603f950144ff9eabf6fd5e8f8f240f3a51c7253a43b4f070d8f1caababa858c89ca448ffbb4bb98c25221eb67a8f9d57b0e26eb6df89995b

  • SSDEEP

    768:ho6aMMCDiWoMr+wEYo7quwLIySD9Kcy6qyJ8PliDhCPxINpH1BqGFv2goI7/+Vj4:+TMMCD78RdwEND1rXpLeVjc4u/H9x

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

      4fcfc2fbfb3ccb29a90c0106d8f2b99ab54b3b3cc3acd6533c25018009fd26c1N.exe

    • Size

      74KB

    • MD5

      985a66d0c5b1fef4b0f3b30dc99dd490

    • SHA1

      88a198f5146ee5bed503c81fa4aa419ca087b9a5

    • SHA256

      4fcfc2fbfb3ccb29a90c0106d8f2b99ab54b3b3cc3acd6533c25018009fd26c1

    • SHA512

      f56a8ae1d2a0181c603f950144ff9eabf6fd5e8f8f240f3a51c7253a43b4f070d8f1caababa858c89ca448ffbb4bb98c25221eb67a8f9d57b0e26eb6df89995b

    • SSDEEP

      768:ho6aMMCDiWoMr+wEYo7quwLIySD9Kcy6qyJ8PliDhCPxINpH1BqGFv2goI7/+Vj4:+TMMCD78RdwEND1rXpLeVjc4u/H9x

    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