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Overview

overview

10

Static

static

3

2024-03-07...ck.exe

windows7-x64

10

2024-03-07...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-03-07_acaf26d2334dbf7259efd779bdf30e1f_virlock

  • Size

    138KB

  • Sample

    240307-l2s29ahg81

  • MD5

    acaf26d2334dbf7259efd779bdf30e1f

  • SHA1

    3fdaa42bb7dbe032af8224117bbaeb590b4ad899

  • SHA256

    4374061c926032283457d48dfd7b8c7a5c3233e987cf80e20e4fde21c712ceaf

  • SHA512

    e5b8b7bd8c58a26b0015003801b358e3f01de46af8b53126c864b4fb3107257d6c70e7f8c21a138efa67cc9f2ac48bae1a1b401e1fd2d52a53c63073a5f0d101

  • SSDEEP

    3072:1Z7UJsFlOH/oxF3PIeva9D+XjflD+/Crt8DLPgqOQ8Rt+qC+A9RZa7Y98yr43qp7:PJlOH/oTrcgi8RtBw9Rr8khx

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-07_acaf26d2334dbf7259efd779bdf30e1f_virlock

    • Size

      138KB

    • MD5

      acaf26d2334dbf7259efd779bdf30e1f

    • SHA1

      3fdaa42bb7dbe032af8224117bbaeb590b4ad899

    • SHA256

      4374061c926032283457d48dfd7b8c7a5c3233e987cf80e20e4fde21c712ceaf

    • SHA512

      e5b8b7bd8c58a26b0015003801b358e3f01de46af8b53126c864b4fb3107257d6c70e7f8c21a138efa67cc9f2ac48bae1a1b401e1fd2d52a53c63073a5f0d101

    • SSDEEP

      3072:1Z7UJsFlOH/oxF3PIeva9D+XjflD+/Crt8DLPgqOQ8Rt+qC+A9RZa7Y98yr43qp7:PJlOH/oTrcgi8RtBw9Rr8khx

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (81) 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