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_f113681adc49d50ccc9fce69383a87db_virlock

  • Size

    792KB

  • Sample

    240525-1f89nsbg48

  • MD5

    f113681adc49d50ccc9fce69383a87db

  • SHA1

    7b2dc87d35be644f7f934adcf96af1dfe4c1105f

  • SHA256

    9e3aca1fcd26a0d1a8d338c5d71d31b3e1e199c26f79f1cb6ee7e27de4d4bbb9

  • SHA512

    a2154a05d0b50c2d8e62a6a36ef03b0e2eea737542f075df16a3606a3cb44d9406df2f3bf19bb6970f98e35b3e50253ffab847a290f9bb60a774a438465e06df

  • SSDEEP

    24576:geMtvV3lWxQvMalN292GS6wV5Tjg4SLZ:gux1azGbm5fg4S

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_f113681adc49d50ccc9fce69383a87db_virlock

    • Size

      792KB

    • MD5

      f113681adc49d50ccc9fce69383a87db

    • SHA1

      7b2dc87d35be644f7f934adcf96af1dfe4c1105f

    • SHA256

      9e3aca1fcd26a0d1a8d338c5d71d31b3e1e199c26f79f1cb6ee7e27de4d4bbb9

    • SHA512

      a2154a05d0b50c2d8e62a6a36ef03b0e2eea737542f075df16a3606a3cb44d9406df2f3bf19bb6970f98e35b3e50253ffab847a290f9bb60a774a438465e06df

    • SSDEEP

      24576:geMtvV3lWxQvMalN292GS6wV5Tjg4SLZ:gux1azGbm5fg4S

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • 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

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks