Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_315e6bb6743f98529ebafe99af443f1c_virlock

  • Size

    544KB

  • Sample

    240525-plr2ssag9w

  • MD5

    315e6bb6743f98529ebafe99af443f1c

  • SHA1

    d4679ede5efd4aeb452a27ecae5d06b046b0b80e

  • SHA256

    e3c3d776cd5661df54aa99337546237714e3be327e974680e0582d133dbf4595

  • SHA512

    8bd22573e9b4e4f25708e2e3012e5e65901190dd9b24aa2c706dc457e3d68dcc6edcbe7eca7d5c5cd5f935ab18e06b23364f5c279b8942c405cc655a2877d2ac

  • SSDEEP

    12288:FnQj9rQRbmAyXr0INLIfXzUHz+xodAirMmr3prYSz4k:FQj9ERXyXr0INLIfzUHhdAirVrYI4k

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_315e6bb6743f98529ebafe99af443f1c_virlock

    • Size

      544KB

    • MD5

      315e6bb6743f98529ebafe99af443f1c

    • SHA1

      d4679ede5efd4aeb452a27ecae5d06b046b0b80e

    • SHA256

      e3c3d776cd5661df54aa99337546237714e3be327e974680e0582d133dbf4595

    • SHA512

      8bd22573e9b4e4f25708e2e3012e5e65901190dd9b24aa2c706dc457e3d68dcc6edcbe7eca7d5c5cd5f935ab18e06b23364f5c279b8942c405cc655a2877d2ac

    • SSDEEP

      12288:FnQj9rQRbmAyXr0INLIfXzUHz+xodAirMmr3prYSz4k:FQj9ERXyXr0INLIfzUHhdAirVrYI4k

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (53) 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