Overview

overview

10

Static

static

3

2025-02-18...ck.exe

windows7-x64

10

2025-02-18...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2025-02-18_e1b0e895123a10cde21436bbbe2de44d_virlock

  • Size

    319KB

  • Sample

    250218-jwpfrszpx4

  • MD5

    e1b0e895123a10cde21436bbbe2de44d

  • SHA1

    b124ebd9fb348752436fc0caaa32bc7704a568de

  • SHA256

    61f43c1c12dbf3ef739f754d8cad62aff85bd4ab664288c7e8332eabb56ecd67

  • SHA512

    22fca8e5ad966e0b9bbcd5c2d01eed4254d00974d0b6f565436fa0344a8f081d85ecce355290af88bbe45ec7b8119b1e901ab3a504738aba2c645d3150ab6a7e

  • SSDEEP

    6144:kXxkV4VYwm2FadD8Nf83myn1sSc9IbobptIDOUpxUjxigh7:kXxkV4V94dD8Nf81A9IbuI62O7

Score
10/10
defense_evasiondiscoverypersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2025-02-18_e1b0e895123a10cde21436bbbe2de44d_virlock

    • Size

      319KB

    • MD5

      e1b0e895123a10cde21436bbbe2de44d

    • SHA1

      b124ebd9fb348752436fc0caaa32bc7704a568de

    • SHA256

      61f43c1c12dbf3ef739f754d8cad62aff85bd4ab664288c7e8332eabb56ecd67

    • SHA512

      22fca8e5ad966e0b9bbcd5c2d01eed4254d00974d0b6f565436fa0344a8f081d85ecce355290af88bbe45ec7b8119b1e901ab3a504738aba2c645d3150ab6a7e

    • SSDEEP

      6144:kXxkV4VYwm2FadD8Nf83myn1sSc9IbobptIDOUpxUjxigh7:kXxkV4V94dD8Nf81A9IbuI62O7

    Score
    10/10
    defense_evasiondiscoverypersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      defense_evasion

    • UAC bypass

      defense_evasiontrojan

    • Renames multiple (83) 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.

    • Deletes itself

    • 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

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks