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Overview

overview

10

Static

static

3

2024-05-23...ck.exe

windows7-x64

10

2024-05-23...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-05-23_a94521cdb67266001bc7cb26a9f69a5f_virlock

  • Size

    196KB

  • Sample

    240523-msghjade47

  • MD5

    a94521cdb67266001bc7cb26a9f69a5f

  • SHA1

    1f43d1ed84c8364a636f247191b90e210d50e55c

  • SHA256

    93458ccffbf93e914273f07f982a2b35ca52c29eab962cdb4e4074fd9fee96c4

  • SHA512

    ac0fb81f63e232d7d3c41a681f912d385ea368aa20023639f284777525a9c0e711b62c92ad3b735756a63337ac7a633b1488954e00fd46dc85a8d2232040edf8

  • SSDEEP

    3072:RgiWNBtVui51S9sY3N6TmuxHlVaDbR08xft9/j6HTUvhRcK7:SNBtVuibS9syMxFVC08Zr6YD

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-23_a94521cdb67266001bc7cb26a9f69a5f_virlock

    • Size

      196KB

    • MD5

      a94521cdb67266001bc7cb26a9f69a5f

    • SHA1

      1f43d1ed84c8364a636f247191b90e210d50e55c

    • SHA256

      93458ccffbf93e914273f07f982a2b35ca52c29eab962cdb4e4074fd9fee96c4

    • SHA512

      ac0fb81f63e232d7d3c41a681f912d385ea368aa20023639f284777525a9c0e711b62c92ad3b735756a63337ac7a633b1488954e00fd46dc85a8d2232040edf8

    • SSDEEP

      3072:RgiWNBtVui51S9sY3N6TmuxHlVaDbR08xft9/j6HTUvhRcK7:SNBtVuibS9syMxFVC08Zr6YD

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) 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