Overview

overview

10

Static

static

3

efae8b3f39...41.exe

windows7-x64

10

efae8b3f39...41.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    efae8b3f390f41fd4d4b3b302d7722ff34d744f38441e40fd3d5d8e280051a41

  • Size

    72KB

  • Sample

    241121-nfwbla1drd

  • MD5

    ac7e5d53c5517483bf391b51619293b1

  • SHA1

    0b90fe1042ca7e2a32ef7ee7cda6510efd5c8942

  • SHA256

    efae8b3f390f41fd4d4b3b302d7722ff34d744f38441e40fd3d5d8e280051a41

  • SHA512

    18e68c8c9f16798ab14600c368c65f4056f49a8c57192f3cfe7abeed485012622b895627cab24d04c877bb90bb72c8a28ea4204b72d122cdc1f4badcfbc52d79

  • SSDEEP

    1536:xS7ny75v54FcB66j6zX3hJTbvgOkOlPoytM1nxb4L2Ral:xSKaIA3fuRxUl

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

      efae8b3f390f41fd4d4b3b302d7722ff34d744f38441e40fd3d5d8e280051a41

    • Size

      72KB

    • MD5

      ac7e5d53c5517483bf391b51619293b1

    • SHA1

      0b90fe1042ca7e2a32ef7ee7cda6510efd5c8942

    • SHA256

      efae8b3f390f41fd4d4b3b302d7722ff34d744f38441e40fd3d5d8e280051a41

    • SHA512

      18e68c8c9f16798ab14600c368c65f4056f49a8c57192f3cfe7abeed485012622b895627cab24d04c877bb90bb72c8a28ea4204b72d122cdc1f4badcfbc52d79

    • SSDEEP

      1536:xS7ny75v54FcB66j6zX3hJTbvgOkOlPoytM1nxb4L2Ral:xSKaIA3fuRxUl

    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