Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-28_163b73412cc4db85da4a38e67babd5c7_virlock

  • Size

    533KB

  • Sample

    240428-mescwade82

  • MD5

    163b73412cc4db85da4a38e67babd5c7

  • SHA1

    15e74833bf23a33f75d6969bcadd06fa7971ddad

  • SHA256

    84caa82c2e311f6dfe9e74e4febaa933163ce08231b86a549eeff85555ff9aa7

  • SHA512

    28309f2478996f8be640be855d5eeda49407dca1285fb726490b16f887856ba3a6fa59e179cf096d3857c6a88c876c41fd7c2c6fb3da9a251a85a8e56178f567

  • SSDEEP

    12288:y3qfTXvUBVBg6DKajHYzmYuDE/4OV8GW:y3qvUjBlr4zWQ/4OV8

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_163b73412cc4db85da4a38e67babd5c7_virlock

    • Size

      533KB

    • MD5

      163b73412cc4db85da4a38e67babd5c7

    • SHA1

      15e74833bf23a33f75d6969bcadd06fa7971ddad

    • SHA256

      84caa82c2e311f6dfe9e74e4febaa933163ce08231b86a549eeff85555ff9aa7

    • SHA512

      28309f2478996f8be640be855d5eeda49407dca1285fb726490b16f887856ba3a6fa59e179cf096d3857c6a88c876c41fd7c2c6fb3da9a251a85a8e56178f567

    • SSDEEP

      12288:y3qfTXvUBVBg6DKajHYzmYuDE/4OV8GW:y3qvUjBlr4zWQ/4OV8

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (57) 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