Overview

overview

10

Static

static

3

2024-05-09...ck.exe

windows7-x64

10

2024-05-09...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-09_6b3c93ee527a9050cb4fdea1a26415f4_virlock

  • Size

    564KB

  • Sample

    240509-a9bx6abf72

  • MD5

    6b3c93ee527a9050cb4fdea1a26415f4

  • SHA1

    071711d0ace17c5b95e664b6edaa236e00e257b8

  • SHA256

    2d8605c4fab6f0938c2975342b1cccf1a1f031e3cd09ea91e43411c215eb3d99

  • SHA512

    97a2fda24261cb6001e15864a62e09f3cbb6502ae4305b5a2d273174a6ab61a798004d4d4ccb61f6f475a0c187b469803e8b1075c2ae1dd3c18b735d04014876

  • SSDEEP

    12288:/6xgRW42X5Q8ERNmwZw1JC805FozQhxSoPs5cv0lSrcwnNI6KguTv/Bcohlo:cgB21JC805uQhxSn

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-09_6b3c93ee527a9050cb4fdea1a26415f4_virlock

    • Size

      564KB

    • MD5

      6b3c93ee527a9050cb4fdea1a26415f4

    • SHA1

      071711d0ace17c5b95e664b6edaa236e00e257b8

    • SHA256

      2d8605c4fab6f0938c2975342b1cccf1a1f031e3cd09ea91e43411c215eb3d99

    • SHA512

      97a2fda24261cb6001e15864a62e09f3cbb6502ae4305b5a2d273174a6ab61a798004d4d4ccb61f6f475a0c187b469803e8b1075c2ae1dd3c18b735d04014876

    • SSDEEP

      12288:/6xgRW42X5Q8ERNmwZw1JC805FozQhxSoPs5cv0lSrcwnNI6KguTv/Bcohlo:cgB21JC805uQhxSn

    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