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_7b6eea9f6114645448ea2f1e98ef2013_virlock

  • Size

    648KB

  • Sample

    240524-1gbpsscb55

  • MD5

    7b6eea9f6114645448ea2f1e98ef2013

  • SHA1

    ff1d81bc66e55d63be3cc0abb710a3191a728505

  • SHA256

    9756136bfeeff2585e060365ad5ca687564d94ff067815cd7468ad4ed445eb34

  • SHA512

    13c61fb15af7d69b913fa515c1467203339ed8830ccffe56d2d0870cbebc7bb5e9949b1af19a51d7697526471bb7f4e210b02f982d94e0e69f979f66e4354202

  • SSDEEP

    12288:BaYyW3PV0fw/rnCHxC9Qw4/1b20L2HmRd0z8plh+sA0/na6kV9:Bpyqd0fWrnOZwCx20fd68plh+sA0/nbu

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_7b6eea9f6114645448ea2f1e98ef2013_virlock

    • Size

      648KB

    • MD5

      7b6eea9f6114645448ea2f1e98ef2013

    • SHA1

      ff1d81bc66e55d63be3cc0abb710a3191a728505

    • SHA256

      9756136bfeeff2585e060365ad5ca687564d94ff067815cd7468ad4ed445eb34

    • SHA512

      13c61fb15af7d69b913fa515c1467203339ed8830ccffe56d2d0870cbebc7bb5e9949b1af19a51d7697526471bb7f4e210b02f982d94e0e69f979f66e4354202

    • SSDEEP

      12288:BaYyW3PV0fw/rnCHxC9Qw4/1b20L2HmRd0z8plh+sA0/na6kV9:Bpyqd0fWrnOZwCx20fd68plh+sA0/nbu

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (76) 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