Overview

overview

10

Static

static

3

2024-05-27...ck.exe

windows7-x64

10

2024-05-27...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-27_d223292866df3dd58303e54cf7ba84db_virlock

  • Size

    652KB

  • Sample

    240527-hfhslscb68

  • MD5

    d223292866df3dd58303e54cf7ba84db

  • SHA1

    36a385acaed3d3229f76f8773debd417ceed6924

  • SHA256

    0a223fa389eea2e731b5f241d77c81a0fff46fd56384e13948d5c29bbce068ff

  • SHA512

    2566457973ffd9542b9f9e34018c58d92455a788717237c1556fe2caec8a9a5a563bb858380904ff6b96520d8960511d5a87c91f659161f1d44ab4b42210f77a

  • SSDEEP

    12288:PwDhF7M1v+4Quid251Of17027HO0muUKWd9vF8iIYfxPsPKni:PQTt44GO9o0HO0muUKWd9voYpPsPKni

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-27_d223292866df3dd58303e54cf7ba84db_virlock

    • Size

      652KB

    • MD5

      d223292866df3dd58303e54cf7ba84db

    • SHA1

      36a385acaed3d3229f76f8773debd417ceed6924

    • SHA256

      0a223fa389eea2e731b5f241d77c81a0fff46fd56384e13948d5c29bbce068ff

    • SHA512

      2566457973ffd9542b9f9e34018c58d92455a788717237c1556fe2caec8a9a5a563bb858380904ff6b96520d8960511d5a87c91f659161f1d44ab4b42210f77a

    • SSDEEP

      12288:PwDhF7M1v+4Quid251Of17027HO0muUKWd9vF8iIYfxPsPKni:PQTt44GO9o0HO0muUKWd9voYpPsPKni

    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.

    • 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