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_61f78c6bc6b04043bca40fb9df30094e_virlock

  • Size

    647KB

  • Sample

    240525-fdbkeafa38

  • MD5

    61f78c6bc6b04043bca40fb9df30094e

  • SHA1

    1471babb9b9875b9b5511c648295b9c856cdfe66

  • SHA256

    103a620610e2ea4175d57b5a2482266fe8365184f4d5749d014f303ae35358b2

  • SHA512

    ba35e147d18494a8905017c04f2734b1af309df3d0c00c9e96b9cc8e9700f11a3448c03bcb4178803eb855b0ff48095ccc70d71244269e7ccdd3bb5b2367c149

  • SSDEEP

    12288:89D+6NeL/QU3HysVRO0yWeKAAqC1pUB62FjMe3+i1N49w6II/h531hijYQ0GJjzQ:8pobQyHysVRKWeKAAqC12wC

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_61f78c6bc6b04043bca40fb9df30094e_virlock

    • Size

      647KB

    • MD5

      61f78c6bc6b04043bca40fb9df30094e

    • SHA1

      1471babb9b9875b9b5511c648295b9c856cdfe66

    • SHA256

      103a620610e2ea4175d57b5a2482266fe8365184f4d5749d014f303ae35358b2

    • SHA512

      ba35e147d18494a8905017c04f2734b1af309df3d0c00c9e96b9cc8e9700f11a3448c03bcb4178803eb855b0ff48095ccc70d71244269e7ccdd3bb5b2367c149

    • SSDEEP

      12288:89D+6NeL/QU3HysVRO0yWeKAAqC1pUB62FjMe3+i1N49w6II/h531hijYQ0GJjzQ:8pobQyHysVRKWeKAAqC12wC

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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