Overview

overview

10

Static

static

3

b9df2b4fb3...78.exe

windows7-x64

10

b9df2b4fb3...78.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b9df2b4fb3a19d253f61a8b1e77c6ab38c51581b3242ea61b36dc10bd9b63b78

  • Size

    2.5MB

  • Sample

    250306-l2frxsvzcy

  • MD5

    61b3792cefd51120d73f8833c51c02bd

  • SHA1

    0079c0ec8d96690050db4696a6fedd5fbb4111bd

  • SHA256

    b9df2b4fb3a19d253f61a8b1e77c6ab38c51581b3242ea61b36dc10bd9b63b78

  • SHA512

    31b677e963efc3dcfb196b510c883ea198d96f81cb902591b851ec2f522fc73ccaad83723ee0cd3490bc034ef0d9c8bc4214d01c0b5f59f0c8fdc3be3b110eb0

  • SSDEEP

    12288:1/kY660JVaw0HBHOehl0oDL/eToo5Li2:lgdVaw0HBFhWof/0o8

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

      b9df2b4fb3a19d253f61a8b1e77c6ab38c51581b3242ea61b36dc10bd9b63b78

    • Size

      2.5MB

    • MD5

      61b3792cefd51120d73f8833c51c02bd

    • SHA1

      0079c0ec8d96690050db4696a6fedd5fbb4111bd

    • SHA256

      b9df2b4fb3a19d253f61a8b1e77c6ab38c51581b3242ea61b36dc10bd9b63b78

    • SHA512

      31b677e963efc3dcfb196b510c883ea198d96f81cb902591b851ec2f522fc73ccaad83723ee0cd3490bc034ef0d9c8bc4214d01c0b5f59f0c8fdc3be3b110eb0

    • SSDEEP

      12288:1/kY660JVaw0HBHOehl0oDL/eToo5Li2:lgdVaw0HBFhWof/0o8

    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