Overview

overview

10

Static

static

1

malware

windows11-21h2-x64

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General

  • Target

    malware

  • Size

    292KB

  • Sample

    240428-asfj1sbh85

  • MD5

    3a39d91741e5de0301da31e22db954e5

  • SHA1

    e4a068292ec2fef1634e1212aae81ef4699d9364

  • SHA256

    9a36b881c9de874aee880bbb2f990bd84c6dad5cc396c188251a185f8e4a9b4e

  • SHA512

    5dfa19e1a366fc2f9ddf72f5f22c07d254106f26b1fac252ccf79c96f7e05e220cf8ad18d16acb0511eda41e3e51946c07666d383f1c5ba9f9699236a57f5f1c

  • SSDEEP

    6144:rHQhR2n9ddKM2vkm0aWyRv3W9MvZJT3CqbMrhryfQNRPaCieMjAkvCJv1Vi0Zgt9:zQhR2n9ddKM2vkm0aWyRv3W9MvZJT3CU

Score
10/10
bootkitevasionpersistenceransomwaretrojanupx

Malware Config

Targets

    • Target

      malware

    • Size

      292KB

    • MD5

      3a39d91741e5de0301da31e22db954e5

    • SHA1

      e4a068292ec2fef1634e1212aae81ef4699d9364

    • SHA256

      9a36b881c9de874aee880bbb2f990bd84c6dad5cc396c188251a185f8e4a9b4e

    • SHA512

      5dfa19e1a366fc2f9ddf72f5f22c07d254106f26b1fac252ccf79c96f7e05e220cf8ad18d16acb0511eda41e3e51946c07666d383f1c5ba9f9699236a57f5f1c

    • SSDEEP

      6144:rHQhR2n9ddKM2vkm0aWyRv3W9MvZJT3CqbMrhryfQNRPaCieMjAkvCJv1Vi0Zgt9:zQhR2n9ddKM2vkm0aWyRv3W9MvZJT3CU

    Score
    10/10
    bootkitevasionpersistenceransomwaretrojanupx

    • UAC bypass

      evasiontrojan

    • Disables Task Manager via registry modification

      evasion

    • Downloads MZ/PE file

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • 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

    • Sets desktop wallpaper using registry

      ransomware
    behavioral1

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Command and Control

Web Service

1
T1102

Exfiltration

Impact

Defacement

1
T1491

Tasks