Overview

overview

8

Static

static

1

WinRAR.lnk

windows7-x64

3

WinRAR.lnk

windows10-2004-x64

Sharing

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General

  • Target

    WinRAR.lnk

  • Size

    997B

  • Sample

    240420-jc7g8scc71

  • MD5

    c844043c01d13a9130acf70fa6e21d9a

  • SHA1

    e93b3a6079c2801fcbacdc8d2f350c9b65b6d385

  • SHA256

    cc71fa084ffab78c7bfb9a86f0099fa2e91ec4268ba7b4865b7894b140b347bd

  • SHA512

    344d6dc7110cfc9c5c5e82388a09667240968e9c971c85e28090930ec3721724bc12d17413f5b0f17a331524399e36774e09025f7bcf16517ae50b0c1f1b89f2

Score
8/10
bootkitevasionpersistence

Malware Config

Targets

    • Target

      WinRAR.lnk

    • Size

      997B

    • MD5

      c844043c01d13a9130acf70fa6e21d9a

    • SHA1

      e93b3a6079c2801fcbacdc8d2f350c9b65b6d385

    • SHA256

      cc71fa084ffab78c7bfb9a86f0099fa2e91ec4268ba7b4865b7894b140b347bd

    • SHA512

      344d6dc7110cfc9c5c5e82388a09667240968e9c971c85e28090930ec3721724bc12d17413f5b0f17a331524399e36774e09025f7bcf16517ae50b0c1f1b89f2

    Score
    8/10
    bootkitevasionpersistence

    • Disables RegEdit via registry modification

      evasion

    • Disables Task Manager via registry modification

      evasion

    • Executes dropped EXE

    • Legitimate hosting services abused for malware hosting/C2

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

      bootkitpersistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

System Information Discovery

2
T1082

Query Registry

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks