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Overview

overview

10

Static

static

3

2024-03-29...ck.exe

windows7-x64

10

2024-03-29...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-03-29_12260695d71062df9ea968a055fdbef2_virlock

  • Size

    116KB

  • Sample

    240329-cz62nafh69

  • MD5

    12260695d71062df9ea968a055fdbef2

  • SHA1

    92bbd02bfd8c120a1f8dbe318df44eef0169ac6f

  • SHA256

    59426cd7f74386ffa6b60688e2b1bea72031ca9b8f706a746e0c4f1da28e1099

  • SHA512

    3362480b944bc3481a56b5f21ad893b7ee3004929d54fdadd5469d322a0c78ab4b4d323a454b5e916e53549ea1c0ef20a7840213f219e6799d9a019132b676c3

  • SSDEEP

    3072:oD/79kC4hMNPpowSFcAN8OdxyTrjCMznKHB:oD/O1MNPqwSFtPdxyTXp

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-29_12260695d71062df9ea968a055fdbef2_virlock

    • Size

      116KB

    • MD5

      12260695d71062df9ea968a055fdbef2

    • SHA1

      92bbd02bfd8c120a1f8dbe318df44eef0169ac6f

    • SHA256

      59426cd7f74386ffa6b60688e2b1bea72031ca9b8f706a746e0c4f1da28e1099

    • SHA512

      3362480b944bc3481a56b5f21ad893b7ee3004929d54fdadd5469d322a0c78ab4b4d323a454b5e916e53549ea1c0ef20a7840213f219e6799d9a019132b676c3

    • SSDEEP

      3072:oD/79kC4hMNPpowSFcAN8OdxyTrjCMznKHB:oD/O1MNPqwSFtPdxyTXp

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (88) 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 Enterprise v15

Reconnaissance

Resource Development

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

Abuse Elevation Control Mechanism

1
T1548

Bypass User Account Control

1
T1548.002

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify Tools

1
T1562.001

Modify Registry

4
T1112

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

Command and Control

Exfiltration

Impact

Tasks