Overview

overview

10

Static

static

3

2024-03-28...ck.exe

windows7-x64

10

2024-03-28...ck.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-03-28_0663148fd8b761fb0088d142ff3697eb_virlock

  • Size

    141KB

  • Sample

    240328-ssn59sad89

  • MD5

    0663148fd8b761fb0088d142ff3697eb

  • SHA1

    82b654f476764dcd03d2ffd208d8fa0772996098

  • SHA256

    20221f10596b1ca00cb7ab4cc2f70720a1cf02956f7e044e293b9cfb01032cba

  • SHA512

    4f4eb6a5c008edc85620a412aac27e6e3b8a99f7457150895fcc50d3da5dc332ddf5a71b07df75f446d045144bce91af1d60fa6c376be8f24dd89d4d39fd41db

  • SSDEEP

    3072:bdkbBY3pesvM5jaJ/3nROgoN2BnoOV8FpAMmn/YIv:Rkm34svMMJnauFV8FpAMmw+

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-28_0663148fd8b761fb0088d142ff3697eb_virlock

    • Size

      141KB

    • MD5

      0663148fd8b761fb0088d142ff3697eb

    • SHA1

      82b654f476764dcd03d2ffd208d8fa0772996098

    • SHA256

      20221f10596b1ca00cb7ab4cc2f70720a1cf02956f7e044e293b9cfb01032cba

    • SHA512

      4f4eb6a5c008edc85620a412aac27e6e3b8a99f7457150895fcc50d3da5dc332ddf5a71b07df75f446d045144bce91af1d60fa6c376be8f24dd89d4d39fd41db

    • SSDEEP

      3072:bdkbBY3pesvM5jaJ/3nROgoN2BnoOV8FpAMmn/YIv:Rkm34svMMJnauFV8FpAMmw+

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (88) 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