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Overview

overview

10

Static

static

3

2024-02-01...ck.exe

windows7-x64

10

2024-02-01...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-01_f93a8f4bc08f934f0e8675bbfd58645b_virlock

  • Size

    238KB

  • Sample

    240201-pnzjnafcgj

  • MD5

    f93a8f4bc08f934f0e8675bbfd58645b

  • SHA1

    3329ec7354e970f5d587d444e9ecebe097882733

  • SHA256

    c176a8bbc51f2017fd854d77d3030199af42c64e992947460eab70c1235e6a11

  • SHA512

    244abdb14c3fa00e6dfd87e11c036878eb219cb4c9850a13941b2535d02baec9fd1bb775b29cb1a2b7dc620f4d9ac8249b7ddc3b1a489b7ddcb88420f3e432ee

  • SSDEEP

    3072:+hkt5XFIwUkqh4u2UxZarhPHOx/PGEnLfuFil4x2feHF5TTsax8rLk+J52YOA2sK:+hkridkqhndxZaMr+iJfeDTr9a5iA2

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-01_f93a8f4bc08f934f0e8675bbfd58645b_virlock

    • Size

      238KB

    • MD5

      f93a8f4bc08f934f0e8675bbfd58645b

    • SHA1

      3329ec7354e970f5d587d444e9ecebe097882733

    • SHA256

      c176a8bbc51f2017fd854d77d3030199af42c64e992947460eab70c1235e6a11

    • SHA512

      244abdb14c3fa00e6dfd87e11c036878eb219cb4c9850a13941b2535d02baec9fd1bb775b29cb1a2b7dc620f4d9ac8249b7ddc3b1a489b7ddcb88420f3e432ee

    • SSDEEP

      3072:+hkt5XFIwUkqh4u2UxZarhPHOx/PGEnLfuFil4x2feHF5TTsax8rLk+J52YOA2sK:+hkridkqhndxZaMr+iJfeDTr9a5iA2

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (79) 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.

    • Deletes itself

    • 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

    • Checks whether UAC is enabled

      evasiontrojan

    • 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

5
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks