Overview

overview

10

Static

static

3

2024-05-26...ck.exe

windows7-x64

10

2024-05-26...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-26_d9885e83326d436a52dfa884db38357f_virlock

  • Size

    521KB

  • Sample

    240526-ehwwgaeg76

  • MD5

    d9885e83326d436a52dfa884db38357f

  • SHA1

    1b312170ad8d815c770ef0f0fe6d85690780c9f0

  • SHA256

    23af9ffebaea000411f6802c3e2e3e106a660c72cf9ffb8d424854b63cf9f997

  • SHA512

    c67220bf8c126c664ad5ce806e097f30980d77519853614ebf9c5f9abc0395842fffd17b65bdb7c9899879c39fc7d91644c77b36e3117e7b5dd0d42c66ca3cc4

  • SSDEEP

    12288:5GkrsynbmhQzUSTzVTDWSqakR1PxNSIVST:82YQlVTDIe

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-26_d9885e83326d436a52dfa884db38357f_virlock

    • Size

      521KB

    • MD5

      d9885e83326d436a52dfa884db38357f

    • SHA1

      1b312170ad8d815c770ef0f0fe6d85690780c9f0

    • SHA256

      23af9ffebaea000411f6802c3e2e3e106a660c72cf9ffb8d424854b63cf9f997

    • SHA512

      c67220bf8c126c664ad5ce806e097f30980d77519853614ebf9c5f9abc0395842fffd17b65bdb7c9899879c39fc7d91644c77b36e3117e7b5dd0d42c66ca3cc4

    • SSDEEP

      12288:5GkrsynbmhQzUSTzVTDWSqakR1PxNSIVST:82YQlVTDIe

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (56) 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