Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_32308b0d0e8528f0d01fbc144ff6114b_virlock

  • Size

    536KB

  • Sample

    240525-ea4w4sde52

  • MD5

    32308b0d0e8528f0d01fbc144ff6114b

  • SHA1

    6e688133572e008fb9b061955b1df5d8889e7ee6

  • SHA256

    fc264a3a0d281d67c3b066e0344f152ba525b499ca7b50a9da1dc4afb3904d5b

  • SHA512

    e1919b72766cf016b9d6ef9d3aa8befdc44bbebfdb64fe3555109ae34f572ee1d95b698adb223080dfafec0e9b8b55434d1ad554522475e1b2b1c015c9de34a1

  • SSDEEP

    12288:UL61oWIYSNECX2lJVP/pV5XGMvwnzvw2BQKfjNfiEGVJUI/:hgYUEV5PXsw+RfiF/U

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_32308b0d0e8528f0d01fbc144ff6114b_virlock

    • Size

      536KB

    • MD5

      32308b0d0e8528f0d01fbc144ff6114b

    • SHA1

      6e688133572e008fb9b061955b1df5d8889e7ee6

    • SHA256

      fc264a3a0d281d67c3b066e0344f152ba525b499ca7b50a9da1dc4afb3904d5b

    • SHA512

      e1919b72766cf016b9d6ef9d3aa8befdc44bbebfdb64fe3555109ae34f572ee1d95b698adb223080dfafec0e9b8b55434d1ad554522475e1b2b1c015c9de34a1

    • SSDEEP

      12288:UL61oWIYSNECX2lJVP/pV5XGMvwnzvw2BQKfjNfiEGVJUI/:hgYUEV5PXsw+RfiF/U

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) 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