Overview

overview

10

Static

static

3

2024-05-07...ck.exe

windows7-x64

10

2024-05-07...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-07_976fa0e179cdeb0d19b34225e1dbed77_virlock

  • Size

    312KB

  • Sample

    240507-nbbrdsdd4s

  • MD5

    976fa0e179cdeb0d19b34225e1dbed77

  • SHA1

    5f2686eb4fb7628fd130e4c7605a551d1a6bb71d

  • SHA256

    d86c5cb32c4fa4f463515d322a5ab3953a1967b918d264c42db1155d18b4ae19

  • SHA512

    5087cbc4ba46124fe6b69bcd9a69bb2c49eb2a5293ce47a773d75cc7d29946f135d8cc707f79e406bdfe02e9f71a250f7d17cde0be4c317da01dbedc0e1eb6c3

  • SSDEEP

    6144:Gpjwubn0SPawnBD0NIVvtfaoC1bwOPVYj5xpbnlZumEBgEcfFgZhnwd:G30Sr0NevtyD10KVMZuRZUqhwd

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-07_976fa0e179cdeb0d19b34225e1dbed77_virlock

    • Size

      312KB

    • MD5

      976fa0e179cdeb0d19b34225e1dbed77

    • SHA1

      5f2686eb4fb7628fd130e4c7605a551d1a6bb71d

    • SHA256

      d86c5cb32c4fa4f463515d322a5ab3953a1967b918d264c42db1155d18b4ae19

    • SHA512

      5087cbc4ba46124fe6b69bcd9a69bb2c49eb2a5293ce47a773d75cc7d29946f135d8cc707f79e406bdfe02e9f71a250f7d17cde0be4c317da01dbedc0e1eb6c3

    • SSDEEP

      6144:Gpjwubn0SPawnBD0NIVvtfaoC1bwOPVYj5xpbnlZumEBgEcfFgZhnwd:G30Sr0NevtyD10KVMZuRZUqhwd

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (52) 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

    • 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

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks