Overview

overview

10

Static

static

3

2024-05-26...ck.exe

windows7-x64

10

2024-05-26...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-26_559b7f4484ba76d5b7ebe00ca8082bdf_virlock

  • Size

    523KB

  • Sample

    240526-d7z4rade5x

  • MD5

    559b7f4484ba76d5b7ebe00ca8082bdf

  • SHA1

    8e6b6026e678460892f3288d1267e1ed03b89c40

  • SHA256

    a46812dfc553142e758f64ebb3d8c442533583457fe987ffa015c95fbbc8b371

  • SHA512

    b27b0422d31fbfce73df827b49d42e31c6da776f11fcb4d8a45a3eb6989e5f0567d87a284d1a4cf18a62b62ca5c56147bbac368151c5c1470f02480043550936

  • SSDEEP

    6144:PUn2EcENuc4fY6/OCd+7AADmyVuLChDZOj2/PfHsekpURxdpnnLo37k1DlMd+w2:8nI6uznOCgDmOSyZ9/P/svUjT4R+w2

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-26_559b7f4484ba76d5b7ebe00ca8082bdf_virlock

    • Size

      523KB

    • MD5

      559b7f4484ba76d5b7ebe00ca8082bdf

    • SHA1

      8e6b6026e678460892f3288d1267e1ed03b89c40

    • SHA256

      a46812dfc553142e758f64ebb3d8c442533583457fe987ffa015c95fbbc8b371

    • SHA512

      b27b0422d31fbfce73df827b49d42e31c6da776f11fcb4d8a45a3eb6989e5f0567d87a284d1a4cf18a62b62ca5c56147bbac368151c5c1470f02480043550936

    • SSDEEP

      6144:PUn2EcENuc4fY6/OCd+7AADmyVuLChDZOj2/PfHsekpURxdpnnLo37k1DlMd+w2:8nI6uznOCgDmOSyZ9/P/svUjT4R+w2

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence
    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

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

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks