General

  • Target

    loader.bat

  • Size

    314B

  • Sample

    240914-xxj5bs1blr

  • MD5

    8df113c0dab1608ab53df4d18e925ac7

  • SHA1

    f607ba1bc71d58c601dd08f26b9b35dde8322524

  • SHA256

    d99ad2ba440f2b8eb3ff86d4b7b6eddb76f97129673443e957c38a39b581941e

  • SHA512

    23e36824d2113a9ac334418211d33428fd37f335034b7ddc1e487164cf0aa950b82f9c45f5ea2d3fe8d5e12f62fad0cd1f792b580726975ba45c6472e3804ebc

Malware Config

Targets

    • Target

      loader.bat

    • Size

      314B

    • MD5

      8df113c0dab1608ab53df4d18e925ac7

    • SHA1

      f607ba1bc71d58c601dd08f26b9b35dde8322524

    • SHA256

      d99ad2ba440f2b8eb3ff86d4b7b6eddb76f97129673443e957c38a39b581941e

    • SHA512

      23e36824d2113a9ac334418211d33428fd37f335034b7ddc1e487164cf0aa950b82f9c45f5ea2d3fe8d5e12f62fad0cd1f792b580726975ba45c6472e3804ebc

    • BadRabbit

      Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.

    • CryptoLocker

      Ransomware family with multiple variants.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks