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Overview

overview

10

Static

static

3

2025-03-19...uk.exe

windows7-x64

10

2025-03-19...uk.exe

windows10-2004-x64

10

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General

  • Target

    2025-03-19_6f1f60d754943d430fc0972d80250baa_cova_ryuk

  • Size

    1.0MB

  • Sample

    250319-c2cwla1vby

  • MD5

    6f1f60d754943d430fc0972d80250baa

  • SHA1

    adf06a5a69d5baf86e78f43e239ad4e0e8f25315

  • SHA256

    768e033c269b8035a23a73c3b31be5d659daa626daa08c17a3b302cc07fe2348

  • SHA512

    bd4e2ce0cf5a86d538e815efce24062155b6026ffa2b03564a001f0eaccf39c02b2b17a6fe5676b338bb6ac8e73df160a9e9e2af80cdb6821aba72764386e522

  • SSDEEP

    24576:TR+cl7X1BRnI6hmebOe1gmx2Jg+DTcTugiIwsQhlRv9x/9K4CfFiEr0CJ:l+clb1BRntmeSKHStRv9xFK1gEr0E

Score
10/10
badrabbitmimikatzdefense_evasiondiscoveryransomware

Malware Config

Targets

    • Target

      2025-03-19_6f1f60d754943d430fc0972d80250baa_cova_ryuk

    • Size

      1.0MB

    • MD5

      6f1f60d754943d430fc0972d80250baa

    • SHA1

      adf06a5a69d5baf86e78f43e239ad4e0e8f25315

    • SHA256

      768e033c269b8035a23a73c3b31be5d659daa626daa08c17a3b302cc07fe2348

    • SHA512

      bd4e2ce0cf5a86d538e815efce24062155b6026ffa2b03564a001f0eaccf39c02b2b17a6fe5676b338bb6ac8e73df160a9e9e2af80cdb6821aba72764386e522

    • SSDEEP

      24576:TR+cl7X1BRnI6hmebOe1gmx2Jg+DTcTugiIwsQhlRv9x/9K4CfFiEr0CJ:l+clb1BRntmeSKHStRv9xFK1gEr0E

    Score
    10/10
    badrabbitmimikatzdefense_evasiondiscoveryransomware

    • BadRabbit

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

      ransomwarebadrabbit

    • Badrabbit family

      badrabbit

    • Mimikatz

      mimikatz is an open source tool to dump credentials on Windows.

      mimikatz

    • Mimikatz family

      mimikatz

    • mimikatz is an open source tool to dump credentials on Windows

    • Manipulates Digital Signatures

      Attackers can apply techniques such as changing the registry keys of authenticode & Cryptography to obtain their binary as valid.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Deobfuscate/Decode Files or Information

      Payload decoded via CertUtil.

      defense_evasion

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks