Overview

overview

9

Static

static

1

sample.html

windows10-ltsc_2021-x64

9

sample.html

windows11-ltsc_2024-x64

3

Sharing

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General

  • Target
    sample
  • Size 33KB
  • Sample260816-vx2y2afk3v
  • SHA256 f91ba11d41921d28eea5bb406e17d0dcbb96a844753e0e703d5e84ed64b55a06
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
defense_evasiondiscoverypersistenceransomwarethemida

Malware Config

Targets

    • Target
      sample
    • Size 33KB
    • SHA256 f91ba11d41921d28eea5bb406e17d0dcbb96a844753e0e703d5e84ed64b55a06
    • MD5 SHA1 SHA512 SSDEEP TLSH
    Score
    9/10
    defense_evasiondiscoverypersistenceransomwarethemida

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

      defense_evasion

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

      themida

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Enterprise v16

Tasks