Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-28_38e74eec51a199732f6c945675934e66_virlock

  • Size

    196KB

  • Sample

    240428-pph83afg73

  • MD5

    38e74eec51a199732f6c945675934e66

  • SHA1

    c3909e82c3af1d14d479e51c53d01ce813019169

  • SHA256

    54b9a1eb70ff5cbe24232176571fc0f76b58091a6a11efc161a1705b298a4f36

  • SHA512

    9f94bd8361632dbf915fc375b46c7f82a2bf30affed27af8091ff290b79bc07e14694b4b6f6f7221b87689df0822aac334b66bf7d720f57c0364d7ea799bd81a

  • SSDEEP

    3072:TrfEcLvtDS4zMQTOeDmowHDU7nJgG3lZV9bxsesHUMQZAf6w:3fEcTGQi6m5jU7nxj9bxZjZZw

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_38e74eec51a199732f6c945675934e66_virlock

    • Size

      196KB

    • MD5

      38e74eec51a199732f6c945675934e66

    • SHA1

      c3909e82c3af1d14d479e51c53d01ce813019169

    • SHA256

      54b9a1eb70ff5cbe24232176571fc0f76b58091a6a11efc161a1705b298a4f36

    • SHA512

      9f94bd8361632dbf915fc375b46c7f82a2bf30affed27af8091ff290b79bc07e14694b4b6f6f7221b87689df0822aac334b66bf7d720f57c0364d7ea799bd81a

    • SSDEEP

      3072:TrfEcLvtDS4zMQTOeDmowHDU7nJgG3lZV9bxsesHUMQZAf6w:3fEcTGQi6m5jU7nxj9bxZjZZw

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (57) 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
    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