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_b049b2933a0c6722b3d74bf71f1ce27e_virlock

  • Size

    345KB

  • Sample

    240524-gbepqafc9z

  • MD5

    b049b2933a0c6722b3d74bf71f1ce27e

  • SHA1

    4ee861e07577d646573955e1f63036fa88f9780a

  • SHA256

    662352bc682e012e257e51d8673fc30757c084525dd8d7288a05c0f76431fa0b

  • SHA512

    5794447c3185f53212bb83da67edc25c482e682d660a8266775133d623add0f35415f67f3a0183a5cdcf821a129dd6bac5c1b8ef3c16f9ca4efcbfa36fbc1424

  • SSDEEP

    6144:uJy+IwdHzSIVfK4U4+9ijMhRzlwDwzz0eIIIIIIIIIIIIIIIIIIII4IIIIIIIIIE:0Fla4E9iIhReK3U

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-24_b049b2933a0c6722b3d74bf71f1ce27e_virlock

    • Size

      345KB

    • MD5

      b049b2933a0c6722b3d74bf71f1ce27e

    • SHA1

      4ee861e07577d646573955e1f63036fa88f9780a

    • SHA256

      662352bc682e012e257e51d8673fc30757c084525dd8d7288a05c0f76431fa0b

    • SHA512

      5794447c3185f53212bb83da67edc25c482e682d660a8266775133d623add0f35415f67f3a0183a5cdcf821a129dd6bac5c1b8ef3c16f9ca4efcbfa36fbc1424

    • SSDEEP

      6144:uJy+IwdHzSIVfK4U4+9ijMhRzlwDwzz0eIIIIIIIIIIIIIIIIIIII4IIIIIIIIIE:0Fla4E9iIhReK3U

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (84) 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