Overview

overview

10

Static

static

3

2024-05-26...ck.exe

windows7-x64

10

2024-05-26...ck.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-05-26_c534263fb8f5357f570835ee30329566_virlock

  • Size

    192KB

  • Sample

    240526-ehexysea8z

  • MD5

    c534263fb8f5357f570835ee30329566

  • SHA1

    f60c52e34273fa9afb960feff46201c657c18b9a

  • SHA256

    b43b9a418b25a472db7bc40bd0393681931d1bf44bd29cacddfda8e447704e39

  • SHA512

    351cfb0d8a3f5359a99147ab0a7ad656f5f2f26eb5a8e237f19ccb35bbfc362a134ab436b3d62eb25dba03b71d65cdff839075f70cd5fb23277a8f964f02df7f

  • SSDEEP

    6144:1HDk+dYQ+tsJzDJFwvDusfC5PtzH2X8vNObT:xDk+x+ts/FwLuPtCMvNS

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-26_c534263fb8f5357f570835ee30329566_virlock

    • Size

      192KB

    • MD5

      c534263fb8f5357f570835ee30329566

    • SHA1

      f60c52e34273fa9afb960feff46201c657c18b9a

    • SHA256

      b43b9a418b25a472db7bc40bd0393681931d1bf44bd29cacddfda8e447704e39

    • SHA512

      351cfb0d8a3f5359a99147ab0a7ad656f5f2f26eb5a8e237f19ccb35bbfc362a134ab436b3d62eb25dba03b71d65cdff839075f70cd5fb23277a8f964f02df7f

    • SSDEEP

      6144:1HDk+dYQ+tsJzDJFwvDusfC5PtzH2X8vNObT:xDk+x+ts/FwLuPtCMvNS

    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

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • 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