Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-25_221cbf823fc3aae0a52d012dbefbbdb1_virlock

  • Size

    569KB

  • Sample

    240425-g52fksge6t

  • MD5

    221cbf823fc3aae0a52d012dbefbbdb1

  • SHA1

    89996159993a2c0fa6492dc7f05a695905dd0e8d

  • SHA256

    cbe5d46273e439f18496ce85fb04448eedc89b5fed4aedd82573466088ea0c68

  • SHA512

    2612ccf798fe5e98f1d747efd7e5bd59682a2220c23d72b1190fe705abeed54fd5aa300d078cd6c286ad968ef509c34b4d6e7924deb17ef9d20747798e14725d

  • SSDEEP

    12288:xp6B9l0agWMwiceBqp83HfboSmWS/dQxIaMK9Dr7:f+CwFm3fboSKd8VMuj

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_221cbf823fc3aae0a52d012dbefbbdb1_virlock

    • Size

      569KB

    • MD5

      221cbf823fc3aae0a52d012dbefbbdb1

    • SHA1

      89996159993a2c0fa6492dc7f05a695905dd0e8d

    • SHA256

      cbe5d46273e439f18496ce85fb04448eedc89b5fed4aedd82573466088ea0c68

    • SHA512

      2612ccf798fe5e98f1d747efd7e5bd59682a2220c23d72b1190fe705abeed54fd5aa300d078cd6c286ad968ef509c34b4d6e7924deb17ef9d20747798e14725d

    • SSDEEP

      12288:xp6B9l0agWMwiceBqp83HfboSmWS/dQxIaMK9Dr7:f+CwFm3fboSKd8VMuj

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (77) 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 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