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_75dcf54de99a24c5441e3261363bebfe_virlock

  • Size

    339KB

  • Sample

    240525-1tsh3sbh2v

  • MD5

    75dcf54de99a24c5441e3261363bebfe

  • SHA1

    ae5c44a57f0f0e3b7149ced69d32194f9b3fccd4

  • SHA256

    71e28382f1adbc9f48a9498c605d989b248b3ebfb81044d9346dcbaef4372c46

  • SHA512

    69ee1c3bc32e21a8e1c387b8a46042687d2d50fcb9d69aca5b79cf5421fefe70e49841d91df966109c185f622aa501d486a8d65ab9a5e7af17d2dcf996aef09e

  • SSDEEP

    6144:MzA/8C15rBffXfg7WmFCCO6CszbhgXQsuf9HezxiNE2lj91oOn:Mw15rRXf6CCrzbdsuf9+zgDu0

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_75dcf54de99a24c5441e3261363bebfe_virlock

    • Size

      339KB

    • MD5

      75dcf54de99a24c5441e3261363bebfe

    • SHA1

      ae5c44a57f0f0e3b7149ced69d32194f9b3fccd4

    • SHA256

      71e28382f1adbc9f48a9498c605d989b248b3ebfb81044d9346dcbaef4372c46

    • SHA512

      69ee1c3bc32e21a8e1c387b8a46042687d2d50fcb9d69aca5b79cf5421fefe70e49841d91df966109c185f622aa501d486a8d65ab9a5e7af17d2dcf996aef09e

    • SSDEEP

      6144:MzA/8C15rBffXfg7WmFCCO6CszbhgXQsuf9HezxiNE2lj91oOn:Mw15rRXf6CCrzbdsuf9+zgDu0

    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.

    • 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