Overview

overview

10

Static

static

3

2024-05-20...ck.exe

windows7-x64

10

2024-05-20...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-20_7a9fdb75863106b0285e3d51ba1f3d33_virlock

  • Size

    269KB

  • Sample

    240520-1dj7rsgf54

  • MD5

    7a9fdb75863106b0285e3d51ba1f3d33

  • SHA1

    c82d334ce57a704fdcb55516d9b889ae124452cd

  • SHA256

    e4313b20e9ea532734d763b5681326c40d5548e7879c6522c88dcf06bc8f6f9a

  • SHA512

    d79384c8ac91448697a76e378b581b5449a542cc03e7a7bcafb2e7cf9a99c138f25af515f06d6754a5ecd65334558720c2dd0cdfd43bfc65cfaf4271af64374d

  • SSDEEP

    6144:occccccccccccccccccccQE6idHSU5csqVm7X7Xc+tOGs+11pVZCblJgKWYb:PGyU5cO7tzVgWYb

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-20_7a9fdb75863106b0285e3d51ba1f3d33_virlock

    • Size

      269KB

    • MD5

      7a9fdb75863106b0285e3d51ba1f3d33

    • SHA1

      c82d334ce57a704fdcb55516d9b889ae124452cd

    • SHA256

      e4313b20e9ea532734d763b5681326c40d5548e7879c6522c88dcf06bc8f6f9a

    • SHA512

      d79384c8ac91448697a76e378b581b5449a542cc03e7a7bcafb2e7cf9a99c138f25af515f06d6754a5ecd65334558720c2dd0cdfd43bfc65cfaf4271af64374d

    • SSDEEP

      6144:occccccccccccccccccccQE6idHSU5csqVm7X7Xc+tOGs+11pVZCblJgKWYb:PGyU5cO7tzVgWYb

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (81) 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 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