Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_f3b471fd16e64f0e21fc167a33ae9d8c_virlock

  • Size

    112KB

  • Sample

    240525-x6zalsfd8v

  • MD5

    f3b471fd16e64f0e21fc167a33ae9d8c

  • SHA1

    af427469f45ec9b887415eee83021a7fe3dee871

  • SHA256

    7fdcffe8f5c99da3c74b117a261ed8ab15e024eae5463df1ee620e13c8953970

  • SHA512

    2c93fa364f05f7a48b8fa025d33a04150ea8daa8fc55dea0abe93f95a98525cce37ee9c9c5ec6e44ababaef1190e17415d1a2e0bb560f514066d80160aa16165

  • SSDEEP

    3072:gcvKSAlTQmsY9YT8k8sLchwI1hKAyqWcSkIkp:nehe8sLcKIisNIkp

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_f3b471fd16e64f0e21fc167a33ae9d8c_virlock

    • Size

      112KB

    • MD5

      f3b471fd16e64f0e21fc167a33ae9d8c

    • SHA1

      af427469f45ec9b887415eee83021a7fe3dee871

    • SHA256

      7fdcffe8f5c99da3c74b117a261ed8ab15e024eae5463df1ee620e13c8953970

    • SHA512

      2c93fa364f05f7a48b8fa025d33a04150ea8daa8fc55dea0abe93f95a98525cce37ee9c9c5ec6e44ababaef1190e17415d1a2e0bb560f514066d80160aa16165

    • SSDEEP

      3072:gcvKSAlTQmsY9YT8k8sLchwI1hKAyqWcSkIkp:nehe8sLcKIisNIkp

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (84) 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

    • 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