Overview

overview

10

Static

static

3

b33ec09d8d...0d.exe

windows7-x64

10

b33ec09d8d...0d.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b33ec09d8d934a9639e4f8767a36fd96c72e99d62a6bc60bc7181470f779700d.exe

  • Size

    71KB

  • Sample

    250111-hkg2waskcq

  • MD5

    4294dab6b4e86f5b9e54c6e0b5fcaf9b

  • SHA1

    204e0bbf0517afeda84313553f5a047ddd2bdf65

  • SHA256

    b33ec09d8d934a9639e4f8767a36fd96c72e99d62a6bc60bc7181470f779700d

  • SHA512

    85419ea0fee3b32627c585d428f7a963a113b5b84cf65ad072246dfd6f081b3ee0a8ed9b0ea2a19bf0f68d24c94077135546e1a83465ba9bd8f93e25882ab7db

  • SSDEEP

    1536:VLo8IS5Jxbi2d+nQDCQWjWjRQ8vDbEyRCRRRoR4RkG:FH1Rbi2dkuje+Ey032yaG

Score
10/10
berbewbackdoordiscoverypersistence

Malware Config

Extracted

Family

berbew

C2

http://viruslist.com/wcmd.txt

http://viruslist.com/ppslog.php

http://viruslist.com/piplog.php?%s:%i:%i:%s:%09u:%i:%02d:%02d:%02d

Targets

    • Target

      b33ec09d8d934a9639e4f8767a36fd96c72e99d62a6bc60bc7181470f779700d.exe

    • Size

      71KB

    • MD5

      4294dab6b4e86f5b9e54c6e0b5fcaf9b

    • SHA1

      204e0bbf0517afeda84313553f5a047ddd2bdf65

    • SHA256

      b33ec09d8d934a9639e4f8767a36fd96c72e99d62a6bc60bc7181470f779700d

    • SHA512

      85419ea0fee3b32627c585d428f7a963a113b5b84cf65ad072246dfd6f081b3ee0a8ed9b0ea2a19bf0f68d24c94077135546e1a83465ba9bd8f93e25882ab7db

    • SSDEEP

      1536:VLo8IS5Jxbi2d+nQDCQWjWjRQ8vDbEyRCRRRoR4RkG:FH1Rbi2dkuje+Ey032yaG

    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