Overview

overview

10

Static

static

3

2024-04-11...ck.exe

windows7-x64

10

2024-04-11...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-11_d3ab46566b611cca7e28039d1cb82c4e_virlock

  • Size

    234KB

  • Sample

    240411-nxnm3sdh9x

  • MD5

    d3ab46566b611cca7e28039d1cb82c4e

  • SHA1

    1a9f7a791977122059bf81f7eea79845380a4d1f

  • SHA256

    c35f718d6149a1388bdc2a6ed535f10afd5f8cf2ae88f9380dbd45d07116decf

  • SHA512

    41856cd28703eb8e05ce2b1b7d5da876016504fb27e5151229c682e2b9e5a89ee18855a0289c5b22b4c187c47a7e24cc3e9579bdb812c69cb3b917384eb443f8

  • SSDEEP

    3072:/1OGpA0lyfj10YoA7DEvfvNlq1fK3F9/PIzIEJY2j76KE8Bf47qW:/4Gna10YD7DFKV93KXjWAWqW

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-11_d3ab46566b611cca7e28039d1cb82c4e_virlock

    • Size

      234KB

    • MD5

      d3ab46566b611cca7e28039d1cb82c4e

    • SHA1

      1a9f7a791977122059bf81f7eea79845380a4d1f

    • SHA256

      c35f718d6149a1388bdc2a6ed535f10afd5f8cf2ae88f9380dbd45d07116decf

    • SHA512

      41856cd28703eb8e05ce2b1b7d5da876016504fb27e5151229c682e2b9e5a89ee18855a0289c5b22b4c187c47a7e24cc3e9579bdb812c69cb3b917384eb443f8

    • SSDEEP

      3072:/1OGpA0lyfj10YoA7DEvfvNlq1fK3F9/PIzIEJY2j76KE8Bf47qW:/4Gna10YD7DFKV93KXjWAWqW

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (79) 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