Overview

overview

8

Static

static

3

2024-05-22...er.exe

windows7-x64

8

2024-05-22...er.exe

windows10-2004-x64

7

Sharing

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General

  • Target

    2024-05-22_ed3a87eafd5bc16bc86d46c5d0627b7b_avoslocker

  • Size

    4.3MB

  • Sample

    240522-c5y81ahg23

  • MD5

    ed3a87eafd5bc16bc86d46c5d0627b7b

  • SHA1

    64267d8958a84fa386ecd7c76776ea1426a0ae27

  • SHA256

    6e6b500282215f414c256b268d605d45129b183b3acfb3b386f6580979e5e388

  • SHA512

    40b9cef634df8e3819d517d915926a172da4809a587d3c5c974dfc66f89c01fe254eb20a4bc5e84d35ae800e02b8dce72c1d3eb8909c624cfdf210d4f9ac1adf

  • SSDEEP

    98304:fO/RG67kIN84klIci68xyDC2YmoieSoaSiHFnI6ts3/:i724kDi6s2YBieS96/

Score
8/10
bootkitevasionpersistencetrojan

Malware Config

Targets

    • Target

      2024-05-22_ed3a87eafd5bc16bc86d46c5d0627b7b_avoslocker

    • Size

      4.3MB

    • MD5

      ed3a87eafd5bc16bc86d46c5d0627b7b

    • SHA1

      64267d8958a84fa386ecd7c76776ea1426a0ae27

    • SHA256

      6e6b500282215f414c256b268d605d45129b183b3acfb3b386f6580979e5e388

    • SHA512

      40b9cef634df8e3819d517d915926a172da4809a587d3c5c974dfc66f89c01fe254eb20a4bc5e84d35ae800e02b8dce72c1d3eb8909c624cfdf210d4f9ac1adf

    • SSDEEP

      98304:fO/RG67kIN84klIci68xyDC2YmoieSoaSiHFnI6ts3/:i724kDi6s2YBieS96/

    Score
    8/10
    bootkitevasionpersistencetrojan

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

      evasiontrojan

    • 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

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks