Overview

overview

10

Static

static

3

21f8893818...fd.exe

windows7-x64

10

21f8893818...fd.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    21f88938189a8af9abd79a9a0545fc038d46d692649a92fac036d001c9bc12fd

  • Size

    71KB

  • Sample

    240925-x75tsawhjg

  • MD5

    bd879a729b6d871c4039c15065891065

  • SHA1

    b5f2a322009a337f80877e74115272290a420ded

  • SHA256

    21f88938189a8af9abd79a9a0545fc038d46d692649a92fac036d001c9bc12fd

  • SHA512

    1fc13df95e1c7d398c9a85ee31a0ed3e80f778486f42a82410c8a31eaf1ea3b58e821521510abff1cc178d2b11ec49392b93d9833e7ac55035d032accc08a400

  • SSDEEP

    1536:/kFb6Ys2A2YqrPfZHJ3xST5IpiFCGDg2a0wmqj9P1RQgtDbEyRCRRRoR4Rk:/Ob6Ys2A2JrP55sUn0wJj9teoEy032ya

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

      21f88938189a8af9abd79a9a0545fc038d46d692649a92fac036d001c9bc12fd

    • Size

      71KB

    • MD5

      bd879a729b6d871c4039c15065891065

    • SHA1

      b5f2a322009a337f80877e74115272290a420ded

    • SHA256

      21f88938189a8af9abd79a9a0545fc038d46d692649a92fac036d001c9bc12fd

    • SHA512

      1fc13df95e1c7d398c9a85ee31a0ed3e80f778486f42a82410c8a31eaf1ea3b58e821521510abff1cc178d2b11ec49392b93d9833e7ac55035d032accc08a400

    • SSDEEP

      1536:/kFb6Ys2A2YqrPfZHJ3xST5IpiFCGDg2a0wmqj9P1RQgtDbEyRCRRRoR4Rk:/Ob6Ys2A2JrP55sUn0wJj9teoEy032ya

    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

    • Executes dropped EXE

    • Loads dropped DLL

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks