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_6d874e41449792478345cbc917bfbb5d_virlock

  • Size

    189KB

  • Sample

    240525-yl3yqsgf75

  • MD5

    6d874e41449792478345cbc917bfbb5d

  • SHA1

    3a8888f4cb9cf6490afc04e80177dd37b445ada2

  • SHA256

    a751a60b06499e204d9abfaf588df1954c2d0b33226bc426473907256147a389

  • SHA512

    ba3242860f70f46a39351ca4c51534cfafc6d3126817ada92a7200d1b8a5938d8a5c2760ada050d455ed08f03aa8c309e4696e3d3f1a1ea15856fd78ec7e4c0d

  • SSDEEP

    3072:2ieAr74wFkOLyIwxUwwwW2NMwowwS46mMFRwqgLYbXzooHj1WcL6+20+7XHpksii:3KaM46mMFRwqgLYbXzooHj1Wy6xDXJkq

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_6d874e41449792478345cbc917bfbb5d_virlock

    • Size

      189KB

    • MD5

      6d874e41449792478345cbc917bfbb5d

    • SHA1

      3a8888f4cb9cf6490afc04e80177dd37b445ada2

    • SHA256

      a751a60b06499e204d9abfaf588df1954c2d0b33226bc426473907256147a389

    • SHA512

      ba3242860f70f46a39351ca4c51534cfafc6d3126817ada92a7200d1b8a5938d8a5c2760ada050d455ed08f03aa8c309e4696e3d3f1a1ea15856fd78ec7e4c0d

    • SSDEEP

      3072:2ieAr74wFkOLyIwxUwwwW2NMwowwS46mMFRwqgLYbXzooHj1WcL6+20+7XHpksii:3KaM46mMFRwqgLYbXzooHj1Wy6xDXJkq

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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