Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-04-28_4634f3182a76687cfbfc14aa296e9c9f_virlock

  • Size

    203KB

  • Sample

    240428-pprkfafg75

  • MD5

    4634f3182a76687cfbfc14aa296e9c9f

  • SHA1

    62844fe8dc8d44ad2d8dfb230bb57d1399dd5d87

  • SHA256

    75ff97b9ef51bd53c781f4992d6f2393f7571cf994b7ad23f90895071e3afd4b

  • SHA512

    c9d602b2d25843c537a414371847315f7ac8d8641f3d77cba1693aeafc895deab200a0693f9ef35b5a3a46d6efd9f3c4c5e7f1e0d1ba7e7f9679dd751999811f

  • SSDEEP

    3072:4fAyzj6yyRhFgl9xEzOPeL4TmuzwvwVKMV8/9fggeE+YgtyIGp/NGu:iAyzCRhFQxYO2LmwKDY3EEL

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_4634f3182a76687cfbfc14aa296e9c9f_virlock

    • Size

      203KB

    • MD5

      4634f3182a76687cfbfc14aa296e9c9f

    • SHA1

      62844fe8dc8d44ad2d8dfb230bb57d1399dd5d87

    • SHA256

      75ff97b9ef51bd53c781f4992d6f2393f7571cf994b7ad23f90895071e3afd4b

    • SHA512

      c9d602b2d25843c537a414371847315f7ac8d8641f3d77cba1693aeafc895deab200a0693f9ef35b5a3a46d6efd9f3c4c5e7f1e0d1ba7e7f9679dd751999811f

    • SSDEEP

      3072:4fAyzj6yyRhFgl9xEzOPeL4TmuzwvwVKMV8/9fggeE+YgtyIGp/NGu:iAyzCRhFQxYO2LmwKDY3EEL

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (63) 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