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_1803e61f2f3642ff828ed67ef87f2ac3_virlock

  • Size

    185KB

  • Sample

    240525-njz4ysef4y

  • MD5

    1803e61f2f3642ff828ed67ef87f2ac3

  • SHA1

    a583696ef62a777db8bda831b534788875774237

  • SHA256

    703f5ad176aeca11852b2844e17de901ba022e714484e3208408b8e915ff23b4

  • SHA512

    cafdfec6a55cc596d78ae8b8d85583aa7de29fcdb380186812f4eedbb671718a563b2c23e75e823d5746edfff997d34c609eae091564547f238aca980c143cd3

  • SSDEEP

    3072:3wVPKOlgM4g637M3G1wm3XFk1nZ5alX/EqN1cLvuOabxAO/nRNjY557JdiCq:gVyOlgM4gg7M3G73XFk1nZ5alXc1TO/f

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_1803e61f2f3642ff828ed67ef87f2ac3_virlock

    • Size

      185KB

    • MD5

      1803e61f2f3642ff828ed67ef87f2ac3

    • SHA1

      a583696ef62a777db8bda831b534788875774237

    • SHA256

      703f5ad176aeca11852b2844e17de901ba022e714484e3208408b8e915ff23b4

    • SHA512

      cafdfec6a55cc596d78ae8b8d85583aa7de29fcdb380186812f4eedbb671718a563b2c23e75e823d5746edfff997d34c609eae091564547f238aca980c143cd3

    • SSDEEP

      3072:3wVPKOlgM4g637M3G1wm3XFk1nZ5alX/EqN1cLvuOabxAO/nRNjY557JdiCq:gVyOlgM4gg7M3G73XFk1nZ5alXc1TO/f

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (65) 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