Overview

overview

10

Static

static

3

2024-05-24...ck.exe

windows7-x64

10

2024-05-24...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-24_978f428348a12660ee885c1f6e34d926_virlock

  • Size

    199KB

  • Sample

    240524-w4zmxsef9y

  • MD5

    978f428348a12660ee885c1f6e34d926

  • SHA1

    dd994c28e1df0d4b77972c4c4d796f425e9c446b

  • SHA256

    1a5d387ff5859dc880c62a9bc50ee448c464ca998a986d8c1eb93b7c824ed374

  • SHA512

    763bcf72b4865e3b285ceacd2385de465a5616f1993aa52b6dd3d786b68a67cbdcb196e8956efe7f49118b8e385fcb14d42ee7dd960c6b5c8caae8eb2b568606

  • SSDEEP

    3072:2RTym7D6XCydNyPGfBAz5pttQ6hKztASqbQUbmYtrP/fFVQ1tH0j:2tL7QzfBa5ptJKRASqbQsmYe1tHI

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_978f428348a12660ee885c1f6e34d926_virlock

    • Size

      199KB

    • MD5

      978f428348a12660ee885c1f6e34d926

    • SHA1

      dd994c28e1df0d4b77972c4c4d796f425e9c446b

    • SHA256

      1a5d387ff5859dc880c62a9bc50ee448c464ca998a986d8c1eb93b7c824ed374

    • SHA512

      763bcf72b4865e3b285ceacd2385de465a5616f1993aa52b6dd3d786b68a67cbdcb196e8956efe7f49118b8e385fcb14d42ee7dd960c6b5c8caae8eb2b568606

    • SSDEEP

      3072:2RTym7D6XCydNyPGfBAz5pttQ6hKztASqbQUbmYtrP/fFVQ1tH0j:2tL7QzfBa5ptJKRASqbQsmYe1tHI

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (58) 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 Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks