Overview

overview

10

Static

static

3

2024-04-26...ck.exe

windows7-x64

10

2024-04-26...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-26_ad2677c23ab1b1073aca9ab23678424c_virlock

  • Size

    709KB

  • Sample

    240426-np8chsfd8y

  • MD5

    ad2677c23ab1b1073aca9ab23678424c

  • SHA1

    a8f7d241cc3a1731f84200f7c5cf2c7a4aaf7832

  • SHA256

    e9d9375584ce13943fe4390ef6688ee87a73644df9db357782e2aa9086015164

  • SHA512

    f3b49dd1ca90033b28723bbd193a4eac1359bb040df90bd38735b536d5b547757ee0dd1389e6d1557b847874ee3bedf11231c765f28ef6e60b77b8dc8c9a524f

  • SSDEEP

    12288:9/t/A7GJ8SMQrWXv+VTmJ3nLi6GN6zYjj9EtjCp8PrJ8bTS:3Y08SMQr0v+VTSn8jj9EtjCpoIT

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-26_ad2677c23ab1b1073aca9ab23678424c_virlock

    • Size

      709KB

    • MD5

      ad2677c23ab1b1073aca9ab23678424c

    • SHA1

      a8f7d241cc3a1731f84200f7c5cf2c7a4aaf7832

    • SHA256

      e9d9375584ce13943fe4390ef6688ee87a73644df9db357782e2aa9086015164

    • SHA512

      f3b49dd1ca90033b28723bbd193a4eac1359bb040df90bd38735b536d5b547757ee0dd1389e6d1557b847874ee3bedf11231c765f28ef6e60b77b8dc8c9a524f

    • SSDEEP

      12288:9/t/A7GJ8SMQrWXv+VTmJ3nLi6GN6zYjj9EtjCp8PrJ8bTS:3Y08SMQr0v+VTSn8jj9EtjCpoIT

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      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

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