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Overview

overview

10

Static

static

3

2024-04-15...ck.exe

windows7-x64

10

2024-04-15...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-15_748f42470b3dfdf0272bf821ee3c59c7_virlock

  • Size

    138KB

  • Sample

    240415-kcd2csac78

  • MD5

    748f42470b3dfdf0272bf821ee3c59c7

  • SHA1

    11e1bf1b8d7c8bc0f7f1f4cd96096ec163119cae

  • SHA256

    df61cc0d6f815725dd58ef09c617ed92a5dd94ad4d7614d1b4bfd8cd63f171fe

  • SHA512

    683ab227a50bd7bfeb395bfdbb2fb422d9db572e7ad379ed3e0d0e221e28d0708b6eba08d37f325f0f4835fd8e943b21a6dbb76e552f006c66ca2643bede91b3

  • SSDEEP

    3072:noDaOr6Ey73oPTC1WVZxkcSHEGb3gDoFrkd2DQUDaxU/:noDaOrRg3oPyWFkcSHDQDo1DJmW/

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-15_748f42470b3dfdf0272bf821ee3c59c7_virlock

    • Size

      138KB

    • MD5

      748f42470b3dfdf0272bf821ee3c59c7

    • SHA1

      11e1bf1b8d7c8bc0f7f1f4cd96096ec163119cae

    • SHA256

      df61cc0d6f815725dd58ef09c617ed92a5dd94ad4d7614d1b4bfd8cd63f171fe

    • SHA512

      683ab227a50bd7bfeb395bfdbb2fb422d9db572e7ad379ed3e0d0e221e28d0708b6eba08d37f325f0f4835fd8e943b21a6dbb76e552f006c66ca2643bede91b3

    • SSDEEP

      3072:noDaOr6Ey73oPTC1WVZxkcSHEGb3gDoFrkd2DQUDaxU/:noDaOrRg3oPyWFkcSHDQDo1DJmW/

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (93) 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
    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