Overview

overview

10

Static

static

3

81e21b004d...bb.exe

windows7-x64

10

81e21b004d...bb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    81e21b004de069a064059fd7e7a341e8732eb7e1390ffeae2e6d54e5668facbb.exe

  • Size

    72KB

  • Sample

    241222-kl25js1ndz

  • MD5

    aea0126b407f4a2252e84bd116081a69

  • SHA1

    b95b9ac5812abe1abdb513d32b2ec5c311b2ed43

  • SHA256

    81e21b004de069a064059fd7e7a341e8732eb7e1390ffeae2e6d54e5668facbb

  • SHA512

    59fbbbef691985cf58e0f4d25acf3d813916f5abeee453578564a8e04dfa90bc4bb5da60593b0ece1d7973b4235f515a0a92f378d84b473da48d682806119292

  • SSDEEP

    1536:WaX9hA1uHLu2GYPCixadX6uZ4XnB4VAIIdAbhcAN/a:WpuHUixah6G2C+d8/a

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

      81e21b004de069a064059fd7e7a341e8732eb7e1390ffeae2e6d54e5668facbb.exe

    • Size

      72KB

    • MD5

      aea0126b407f4a2252e84bd116081a69

    • SHA1

      b95b9ac5812abe1abdb513d32b2ec5c311b2ed43

    • SHA256

      81e21b004de069a064059fd7e7a341e8732eb7e1390ffeae2e6d54e5668facbb

    • SHA512

      59fbbbef691985cf58e0f4d25acf3d813916f5abeee453578564a8e04dfa90bc4bb5da60593b0ece1d7973b4235f515a0a92f378d84b473da48d682806119292

    • SSDEEP

      1536:WaX9hA1uHLu2GYPCixadX6uZ4XnB4VAIIdAbhcAN/a:WpuHUixah6G2C+d8/a

    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