Overview

overview

10

Static

static

3

2024-07-05...ck.exe

windows7-x64

10

2024-07-05...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-07-05_74b5f976f26f87845b17c1c114d3f4eb_virlock

  • Size

    143KB

  • Sample

    240705-nr9claxenq

  • MD5

    74b5f976f26f87845b17c1c114d3f4eb

  • SHA1

    3ee0bda7b78ec088f19d5362d1f158467a325429

  • SHA256

    a98ea9bae16277227060ef6d43cd0525e846a38c85e319f9129a28046c4c3bd3

  • SHA512

    93de0f12789866e6777eae30fee344fa9f9992f859b379d4456ce0c50dd197e5c44d3df65c056d324bbe42f59d72ae4d1ca66fe1fea0ff47b3b3bdf674ce9516

  • SSDEEP

    3072:o+q9PW2qthyUIBAPaC2QDHww2hQfkSDBOcIx:5Uu27H0aC2QDHUQfkOB4x

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-07-05_74b5f976f26f87845b17c1c114d3f4eb_virlock

    • Size

      143KB

    • MD5

      74b5f976f26f87845b17c1c114d3f4eb

    • SHA1

      3ee0bda7b78ec088f19d5362d1f158467a325429

    • SHA256

      a98ea9bae16277227060ef6d43cd0525e846a38c85e319f9129a28046c4c3bd3

    • SHA512

      93de0f12789866e6777eae30fee344fa9f9992f859b379d4456ce0c50dd197e5c44d3df65c056d324bbe42f59d72ae4d1ca66fe1fea0ff47b3b3bdf674ce9516

    • SSDEEP

      3072:o+q9PW2qthyUIBAPaC2QDHww2hQfkSDBOcIx:5Uu27H0aC2QDHUQfkOB4x

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (60) 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