Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_61cd4e9327ec5da51da328096b0fc36f_virlock

  • Size

    196KB

  • Sample

    240425-zr7pjseg69

  • MD5

    61cd4e9327ec5da51da328096b0fc36f

  • SHA1

    253b9758f7b06743536ce8800ba7e21dd6273fce

  • SHA256

    ea514385af1cd44410072e4c7aeba20d91d550b10236079dbdf126dfdd3e5de0

  • SHA512

    0a38816904550129c73f1f4ea643a1b4e227d604eef42446bd1d2b9c5f38cf174cecf0d226333e7534f7b56b2cb63d307a00d25117ed6f75413b04f2a5caa5e1

  • SSDEEP

    6144:GDdGBiS4E9JvqhgMHs79v+cJjbD42id2Csto5LXDRr:odGBiS4E9JvqhgC4vgpc4T9

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_61cd4e9327ec5da51da328096b0fc36f_virlock

    • Size

      196KB

    • MD5

      61cd4e9327ec5da51da328096b0fc36f

    • SHA1

      253b9758f7b06743536ce8800ba7e21dd6273fce

    • SHA256

      ea514385af1cd44410072e4c7aeba20d91d550b10236079dbdf126dfdd3e5de0

    • SHA512

      0a38816904550129c73f1f4ea643a1b4e227d604eef42446bd1d2b9c5f38cf174cecf0d226333e7534f7b56b2cb63d307a00d25117ed6f75413b04f2a5caa5e1

    • SSDEEP

      6144:GDdGBiS4E9JvqhgMHs79v+cJjbD42id2Csto5LXDRr:odGBiS4E9JvqhgC4vgpc4T9

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (64) 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