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Overview

overview

10

Static

static

3

2024-04-17...ck.exe

windows7-x64

10

2024-04-17...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-04-17_befa77d0e7d6c251940ec9f975c6d5b9_virlock

  • Size

    253KB

  • Sample

    240417-c6lz3abf25

  • MD5

    befa77d0e7d6c251940ec9f975c6d5b9

  • SHA1

    89b9ebb0ad74d28d6e6a70823ed975263d6254f3

  • SHA256

    85da9228e34d7a8c944352d2a3e71883a2559dab0efac3488c47e6a739b481d8

  • SHA512

    2e1de27d4640624c4547df57b8acf7b9e7a7957cdbb1157b147b3f8b07c08d568fb85532a6eacb955c8082faddb356e9eeaff895cce6887a5d3c16949c0ca2bf

  • SSDEEP

    6144:OsO2HVogXW8rApbO3vxJH9Zn6upRwYhObFTK1k8tQwm:muVoaW8rApAH9eKOZTK7E

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-17_befa77d0e7d6c251940ec9f975c6d5b9_virlock

    • Size

      253KB

    • MD5

      befa77d0e7d6c251940ec9f975c6d5b9

    • SHA1

      89b9ebb0ad74d28d6e6a70823ed975263d6254f3

    • SHA256

      85da9228e34d7a8c944352d2a3e71883a2559dab0efac3488c47e6a739b481d8

    • SHA512

      2e1de27d4640624c4547df57b8acf7b9e7a7957cdbb1157b147b3f8b07c08d568fb85532a6eacb955c8082faddb356e9eeaff895cce6887a5d3c16949c0ca2bf

    • SSDEEP

      6144:OsO2HVogXW8rApbO3vxJH9Zn6upRwYhObFTK1k8tQwm:muVoaW8rApAH9eKOZTK7E

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (89) 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
    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