Overview

overview

10

Static

static

10

ServerCrasher.exe

windows10-2004-x64

9

Sharing

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General

  • Target

    ServerCrasher.exe

  • Size

    78.6MB

  • Sample

    240124-x4rgzsgdgr

  • MD5

    4b59ef558144ac37e90c90202baa2630

  • SHA1

    390bc03debe2d14dffa0f3820452df3b74d72f08

  • SHA256

    ba3abb8bfea8e19b1a1bd17ac0800250c04e4783b2a7f7c55c53a74e701a276c

  • SHA512

    8f608f7d5e22128a8f571e36fcc1992f46531778ec3cbe498409ebebd28d9a12888f3d69713b331d28b2c3dbce4dd818b13cfe800dbe68de28ed36f8259482ce

  • SSDEEP

    1572864:WvlQ3j0DISk8IpG7V+VPhqcLE7YhjC0WlsnghowmaOllpWL9OMyWBqX:Wvl+tSkB05awcvhujsghfxOllpW9OvWo

Score
10/10
pysilondiscoveryevasionpersistencepyinstallerupx

Malware Config

Targets

    • Target

      ServerCrasher.exe

    • Size

      78.6MB

    • MD5

      4b59ef558144ac37e90c90202baa2630

    • SHA1

      390bc03debe2d14dffa0f3820452df3b74d72f08

    • SHA256

      ba3abb8bfea8e19b1a1bd17ac0800250c04e4783b2a7f7c55c53a74e701a276c

    • SHA512

      8f608f7d5e22128a8f571e36fcc1992f46531778ec3cbe498409ebebd28d9a12888f3d69713b331d28b2c3dbce4dd818b13cfe800dbe68de28ed36f8259482ce

    • SSDEEP

      1572864:WvlQ3j0DISk8IpG7V+VPhqcLE7YhjC0WlsnghowmaOllpWL9OMyWBqX:Wvl+tSkB05awcvhujsghfxOllpW9OvWo

    Score
    9/10
    discoveryevasionpersistenceupx

    • Enumerates VirtualBox DLL files

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

      evasion

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Legitimate hosting services abused for malware hosting/C2

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks