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_17b82e64e80caab520aac1965ba4f8cb_virlock

  • Size

    207KB

  • Sample

    240524-w1wrvsee9s

  • MD5

    17b82e64e80caab520aac1965ba4f8cb

  • SHA1

    2e4a23c270b3e8d9324a7192f07f405ef03bea59

  • SHA256

    a376ad480944f8a6e3dd1fe3a260a9d6196b88010a91e1af0883d2f44bc29784

  • SHA512

    e882a59ea0feaa556a303e7857f04f1415216509658ed5888c2e61b4de5f136e4cfe4f09e8e54ecee42abadec53431520aa3646401df400e87f2cace67eab3a7

  • SSDEEP

    3072:+xeV4f7Gdz24bTZ6OoaqGGY6wzOKbghx0O8CLLpK6LC0Pybl:KeVwQiq9epwR0b5K67P4l

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_17b82e64e80caab520aac1965ba4f8cb_virlock

    • Size

      207KB

    • MD5

      17b82e64e80caab520aac1965ba4f8cb

    • SHA1

      2e4a23c270b3e8d9324a7192f07f405ef03bea59

    • SHA256

      a376ad480944f8a6e3dd1fe3a260a9d6196b88010a91e1af0883d2f44bc29784

    • SHA512

      e882a59ea0feaa556a303e7857f04f1415216509658ed5888c2e61b4de5f136e4cfe4f09e8e54ecee42abadec53431520aa3646401df400e87f2cace67eab3a7

    • SSDEEP

      3072:+xeV4f7Gdz24bTZ6OoaqGGY6wzOKbghx0O8CLLpK6LC0Pybl:KeVwQiq9epwR0b5K67P4l

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (64) 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