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Overview

overview

10

Static

static

3

2024-02-25...ck.exe

windows7-x64

10

2024-02-25...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-25_bde9d8330421dff5a79162aca435f2e0_virlock

  • Size

    563KB

  • Sample

    240225-he1l2aea78

  • MD5

    bde9d8330421dff5a79162aca435f2e0

  • SHA1

    813d04b61307910500c118d3b77708c87f90f6d7

  • SHA256

    1e24b58f77c280e6b90ec84790c21268d060c67a1c20e878de908bae0c841b96

  • SHA512

    0579c07f79e4d241592561d5616bee31386072314b6fbd0ebc379024ccc2240c8466f3a0af916ae7018ba0bcf4327669616c7e6d409acd8b2ecbb6e6d66b4ae2

  • SSDEEP

    12288:FFU1GZOxvLFdFIxiZBBnitvZF0+fNGR1:FFiGgxsib5iZZFHfi

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-25_bde9d8330421dff5a79162aca435f2e0_virlock

    • Size

      563KB

    • MD5

      bde9d8330421dff5a79162aca435f2e0

    • SHA1

      813d04b61307910500c118d3b77708c87f90f6d7

    • SHA256

      1e24b58f77c280e6b90ec84790c21268d060c67a1c20e878de908bae0c841b96

    • SHA512

      0579c07f79e4d241592561d5616bee31386072314b6fbd0ebc379024ccc2240c8466f3a0af916ae7018ba0bcf4327669616c7e6d409acd8b2ecbb6e6d66b4ae2

    • SSDEEP

      12288:FFU1GZOxvLFdFIxiZBBnitvZF0+fNGR1:FFiGgxsib5iZZFHfi

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (77) 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 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