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_5bacaf1f4be18b9b2491996046ea3a02_virlock

  • Size

    251KB

  • Sample

    240525-pmkzwaah6w

  • MD5

    5bacaf1f4be18b9b2491996046ea3a02

  • SHA1

    7439af7c23895b6c157aa2e7dabd668ded6b4ba9

  • SHA256

    170a77913d860b59bfd43077a9224cca1f59e7b069c1cecb25028234f2aac4b8

  • SHA512

    51c21709fa73860bf5775bb3938f102e12e519866ddc4cd52bc4903ce72ff9a553439d524b403d823a628ab97db5ea8cebd87d44df5d2f975496a4b402e32910

  • SSDEEP

    6144:/Hq4PSM3Dxnv4HBQdlvkUUvSvxOX0mM2jUN8DOS77:C4PSM3Dxnv4HBQfk3QxxmM2jbOS77

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_5bacaf1f4be18b9b2491996046ea3a02_virlock

    • Size

      251KB

    • MD5

      5bacaf1f4be18b9b2491996046ea3a02

    • SHA1

      7439af7c23895b6c157aa2e7dabd668ded6b4ba9

    • SHA256

      170a77913d860b59bfd43077a9224cca1f59e7b069c1cecb25028234f2aac4b8

    • SHA512

      51c21709fa73860bf5775bb3938f102e12e519866ddc4cd52bc4903ce72ff9a553439d524b403d823a628ab97db5ea8cebd87d44df5d2f975496a4b402e32910

    • SSDEEP

      6144:/Hq4PSM3Dxnv4HBQdlvkUUvSvxOX0mM2jUN8DOS77:C4PSM3Dxnv4HBQfk3QxxmM2jbOS77

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • 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

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

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

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Modify Registry

4
T1112

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks