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Overview

overview

10

Static

static

3

2024-03-25...ck.exe

windows7-x64

10

2024-03-25...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-03-25_3fc74b3e3e6868a79a75f8aae90378f8_virlock

  • Size

    256KB

  • Sample

    240325-2ggfqaad37

  • MD5

    3fc74b3e3e6868a79a75f8aae90378f8

  • SHA1

    c6cfe8d884a3b5ad07b7672a6950b96fcef6b26b

  • SHA256

    6bd3ee6e2286659ef751fd574173dca82f1916acb14b8e2fbb2a9137cf8c533d

  • SHA512

    d0887a55898a6cbc2b4a4335855d2891dbda9c743f0e9f58717787e6c3b9328c2995c8a61c42789079745e8a20fd90f4316ab4c24858b461c083dfe3a7fc9dba

  • SSDEEP

    3072:vUj3zuuLExmxNBh+5D/ZcVFgtw5L9UrVtD7kJ9F3F+/ONcCq96vqnQ:vU5DN/+qFgi5p0o3KOtq6J

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-25_3fc74b3e3e6868a79a75f8aae90378f8_virlock

    • Size

      256KB

    • MD5

      3fc74b3e3e6868a79a75f8aae90378f8

    • SHA1

      c6cfe8d884a3b5ad07b7672a6950b96fcef6b26b

    • SHA256

      6bd3ee6e2286659ef751fd574173dca82f1916acb14b8e2fbb2a9137cf8c533d

    • SHA512

      d0887a55898a6cbc2b4a4335855d2891dbda9c743f0e9f58717787e6c3b9328c2995c8a61c42789079745e8a20fd90f4316ab4c24858b461c083dfe3a7fc9dba

    • SSDEEP

      3072:vUj3zuuLExmxNBh+5D/ZcVFgtw5L9UrVtD7kJ9F3F+/ONcCq96vqnQ:vU5DN/+qFgi5p0o3KOtq6J

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (83) 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