Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

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General

  • Target

    2024-04-25_fb9b2d48eb33e203929861ebb66539f6_virlock

  • Size

    357KB

  • Sample

    240425-fd541sfg2z

  • MD5

    fb9b2d48eb33e203929861ebb66539f6

  • SHA1

    bd30771d2f43bec4b97fe08a56762c0cef473e1f

  • SHA256

    7018b953e1533f3e9984ad8e020deaece06e38c005a1b1fed6874605bf17a3c6

  • SHA512

    5d30e3eee3da2f65e453a69115e39f02b6e8712a61d5f0b05bc700d1bc85093ca8c7a832c15328eccc8621eef23bd6dfe3e5973468ea4ebd82dea2808343a20a

  • SSDEEP

    6144:VCkyilpelkO3S33XvNXJOMPrXbx+UbUpo:EGpel54FXEMP4po

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_fb9b2d48eb33e203929861ebb66539f6_virlock

    • Size

      357KB

    • MD5

      fb9b2d48eb33e203929861ebb66539f6

    • SHA1

      bd30771d2f43bec4b97fe08a56762c0cef473e1f

    • SHA256

      7018b953e1533f3e9984ad8e020deaece06e38c005a1b1fed6874605bf17a3c6

    • SHA512

      5d30e3eee3da2f65e453a69115e39f02b6e8712a61d5f0b05bc700d1bc85093ca8c7a832c15328eccc8621eef23bd6dfe3e5973468ea4ebd82dea2808343a20a

    • SSDEEP

      6144:VCkyilpelkO3S33XvNXJOMPrXbx+UbUpo:EGpel54FXEMP4po

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (72) 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
    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