Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-22_9d6468cbd21eec41700b0a182c369f25_virlock

  • Size

    521KB

  • Sample

    240522-zy23msgg94

  • MD5

    9d6468cbd21eec41700b0a182c369f25

  • SHA1

    4fbf2a633bf2b4bfa32bca841b30b7bd4262dc18

  • SHA256

    2169e1a129fac1ed59bb8dbb62d684caaf63022313297804d3d9c859ecd59c7b

  • SHA512

    892329bb8f430a12845fae6401dfe4c67927b03892a8cf0e346983f1939cf4ea320fe0d4751120a53fdf5479718a15ce998de51681af1ed5ee47616acacc4910

  • SSDEEP

    12288:a7kwZQkRQrhlONfbw9tCdi8fcLoaow/K:a7k0QZhlq+tCdK

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_9d6468cbd21eec41700b0a182c369f25_virlock

    • Size

      521KB

    • MD5

      9d6468cbd21eec41700b0a182c369f25

    • SHA1

      4fbf2a633bf2b4bfa32bca841b30b7bd4262dc18

    • SHA256

      2169e1a129fac1ed59bb8dbb62d684caaf63022313297804d3d9c859ecd59c7b

    • SHA512

      892329bb8f430a12845fae6401dfe4c67927b03892a8cf0e346983f1939cf4ea320fe0d4751120a53fdf5479718a15ce998de51681af1ed5ee47616acacc4910

    • SSDEEP

      12288:a7kwZQkRQrhlONfbw9tCdi8fcLoaow/K:a7k0QZhlq+tCdK

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (65) 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