Overview

overview

10

Static

static

3

2024-05-24...ck.exe

windows7-x64

10

2024-05-24...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-24_db7eebbce83c2a26556b0d5457829d50_virlock

  • Size

    271KB

  • Sample

    240524-efkenacb49

  • MD5

    db7eebbce83c2a26556b0d5457829d50

  • SHA1

    b570c2327ff8808a68c319516d6b67216753dc08

  • SHA256

    93f1a56fcba4a1c7fabe2fbe716d40941b59e028e98392aee590a27e7f2f6d6b

  • SHA512

    3a52731c2d2da83f98d2d9f14699641d1f73ff4c1824a72e4290a5fae31a8720d01889034f4f5b1f8096f62f4c96fe40c23438b7313ed67768e288a537b6cd61

  • SSDEEP

    6144:pSMeBn6WMehJbpwkrHfXtgOpz/hcuIDHDli:Wn7r7/tgO1hEHp

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_db7eebbce83c2a26556b0d5457829d50_virlock

    • Size

      271KB

    • MD5

      db7eebbce83c2a26556b0d5457829d50

    • SHA1

      b570c2327ff8808a68c319516d6b67216753dc08

    • SHA256

      93f1a56fcba4a1c7fabe2fbe716d40941b59e028e98392aee590a27e7f2f6d6b

    • SHA512

      3a52731c2d2da83f98d2d9f14699641d1f73ff4c1824a72e4290a5fae31a8720d01889034f4f5b1f8096f62f4c96fe40c23438b7313ed67768e288a537b6cd61

    • SSDEEP

      6144:pSMeBn6WMehJbpwkrHfXtgOpz/hcuIDHDli:Wn7r7/tgO1hEHp

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (56) 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