Overview

overview

10

Static

static

3

2024-02-12...ck.exe

windows7-x64

10

2024-02-12...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-12_8649f0822738456c7f9e33fa5287a993_virlock

  • Size

    254KB

  • Sample

    240212-w36d3sah7t

  • MD5

    8649f0822738456c7f9e33fa5287a993

  • SHA1

    e71ed54ee93ee969a904aaa4efa219ba772e697e

  • SHA256

    551c4664f1a8fe02a25248bb937cdb401be995ed70fe980fa436ea5cd612d294

  • SHA512

    7c39f90b01c06538da7c9ae3c64fdb872196fae3768992e2d720310096c2560e05d2da788c45231910f1a9e84684f0c317f3c962b7105701d3fe004c882c2e31

  • SSDEEP

    3072:oiWWKk+5/Do8tCTqyn62FQuhLWPsKK2oUcDnlTMNof:oiWWKk+5/D/CTqy6yQtPpcDlTMNof

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-12_8649f0822738456c7f9e33fa5287a993_virlock

    • Size

      254KB

    • MD5

      8649f0822738456c7f9e33fa5287a993

    • SHA1

      e71ed54ee93ee969a904aaa4efa219ba772e697e

    • SHA256

      551c4664f1a8fe02a25248bb937cdb401be995ed70fe980fa436ea5cd612d294

    • SHA512

      7c39f90b01c06538da7c9ae3c64fdb872196fae3768992e2d720310096c2560e05d2da788c45231910f1a9e84684f0c317f3c962b7105701d3fe004c882c2e31

    • SSDEEP

      3072:oiWWKk+5/Do8tCTqyn62FQuhLWPsKK2oUcDnlTMNof:oiWWKk+5/D/CTqy6yQtPpcDlTMNof

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (77) 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

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

Command and Control

Exfiltration

Impact

Tasks