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Overview

overview

10

Static

static

3

8ef9f03a8e...2N.exe

windows7-x64

10

8ef9f03a8e...2N.exe

windows10-2004-x64

10

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General

  • Target

    8ef9f03a8e6c178bd36e22bda0f21c15932663f7d7c4087d9319e2d8b409af72N.exe

  • Size

    80KB

  • Sample

    240925-vf2a6sweqm

  • MD5

    b794a428ba9296eb8e0910409ea955d0

  • SHA1

    a6b6514519220276b6439b430f73626c26e3acf7

  • SHA256

    8ef9f03a8e6c178bd36e22bda0f21c15932663f7d7c4087d9319e2d8b409af72

  • SHA512

    495ab7171430162f90dfb3a6def9102e207bed50a223fade59fe4e3cc93732b7aa2b9d328bcc243368e6030792862d35b9eab9d53b3199e915b514814298388e

  • SSDEEP

    1536:eje6/Qy0S7u0utTYsLky9n24CijM1211ryNvw3z2kFeJuqnhCN:ejf8SIx1LkCn2FL1W12NY3z2kFeJLCN

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

      8ef9f03a8e6c178bd36e22bda0f21c15932663f7d7c4087d9319e2d8b409af72N.exe

    • Size

      80KB

    • MD5

      b794a428ba9296eb8e0910409ea955d0

    • SHA1

      a6b6514519220276b6439b430f73626c26e3acf7

    • SHA256

      8ef9f03a8e6c178bd36e22bda0f21c15932663f7d7c4087d9319e2d8b409af72

    • SHA512

      495ab7171430162f90dfb3a6def9102e207bed50a223fade59fe4e3cc93732b7aa2b9d328bcc243368e6030792862d35b9eab9d53b3199e915b514814298388e

    • SSDEEP

      1536:eje6/Qy0S7u0utTYsLky9n24CijM1211ryNvw3z2kFeJuqnhCN:ejf8SIx1LkCn2FL1W12NY3z2kFeJLCN

    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