Overview

overview

10

Static

static

3

2b20beff8d...8a.exe

windows7-x64

10

2b20beff8d...8a.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2b20beff8db11cc60a3e9e822dc4864a4b8faf84b2b62e1d3249bfb95b0f2f8a

  • Size

    108KB

  • Sample

    241207-zs89rsyndk

  • MD5

    fff902f9cd43e1b6253339ae6eed214a

  • SHA1

    84ca3d9383055c5c1a4e8b61e4af1e2c6baf3d51

  • SHA256

    2b20beff8db11cc60a3e9e822dc4864a4b8faf84b2b62e1d3249bfb95b0f2f8a

  • SHA512

    6687bfa87e6e2cfe207dacd6c34b937d2e8fa24fd6d1ac6224c3144d2ff92600db1ed300bdf36ab1b7c8318e67d40fad825b21f322952dffc9a8ac651131e09d

  • SSDEEP

    1536:dcqRm3Vx+Ys4eRg7Uv8qmD4ZDVCjDHG3Rk1Se6DFcFmKcUsvKwF:d9EH+Ys4eR+luxKD6eSFcFmKcUsvKwF

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

      2b20beff8db11cc60a3e9e822dc4864a4b8faf84b2b62e1d3249bfb95b0f2f8a

    • Size

      108KB

    • MD5

      fff902f9cd43e1b6253339ae6eed214a

    • SHA1

      84ca3d9383055c5c1a4e8b61e4af1e2c6baf3d51

    • SHA256

      2b20beff8db11cc60a3e9e822dc4864a4b8faf84b2b62e1d3249bfb95b0f2f8a

    • SHA512

      6687bfa87e6e2cfe207dacd6c34b937d2e8fa24fd6d1ac6224c3144d2ff92600db1ed300bdf36ab1b7c8318e67d40fad825b21f322952dffc9a8ac651131e09d

    • SSDEEP

      1536:dcqRm3Vx+Ys4eRg7Uv8qmD4ZDVCjDHG3Rk1Se6DFcFmKcUsvKwF:d9EH+Ys4eR+luxKD6eSFcFmKcUsvKwF

    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