Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_13537522c31f3687b06fae04ac668db1_virlock

  • Size

    254KB

  • Sample

    240425-p1jc7sag8x

  • MD5

    13537522c31f3687b06fae04ac668db1

  • SHA1

    f175672ed2d3257150e286d6c223b6e7690e6cfe

  • SHA256

    e864b28e32f9b39b8ca1252032e9d51e7dab3cdf70ef8166a8111edf5028a10d

  • SHA512

    e2e3686d48fb120bc522b2433bafaa17513d1e124b403c64a7d451952a83fd2d3e7ad678839b057c3c9c1513d57388b43d4e9b17cc194220f6b5fd157dcfe1c3

  • SSDEEP

    6144:qOUuVYTMQx2BQ9XnPP1T5qxbjNJ7smlao63SLcVZKXV:qw62BQhP1EjNJQmlao63SLcVZMV

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_13537522c31f3687b06fae04ac668db1_virlock

    • Size

      254KB

    • MD5

      13537522c31f3687b06fae04ac668db1

    • SHA1

      f175672ed2d3257150e286d6c223b6e7690e6cfe

    • SHA256

      e864b28e32f9b39b8ca1252032e9d51e7dab3cdf70ef8166a8111edf5028a10d

    • SHA512

      e2e3686d48fb120bc522b2433bafaa17513d1e124b403c64a7d451952a83fd2d3e7ad678839b057c3c9c1513d57388b43d4e9b17cc194220f6b5fd157dcfe1c3

    • SSDEEP

      6144:qOUuVYTMQx2BQ9XnPP1T5qxbjNJ7smlao63SLcVZKXV:qw62BQhP1EjNJQmlao63SLcVZMV

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (92) 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