Overview

overview

10

Static

static

3

2024-09-20...ck.exe

windows7-x64

10

2024-09-20...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-09-20_3b885ddc27f542ab37b2396c624636bf_virlock

  • Size

    204KB

  • Sample

    240920-nlcfnsthml

  • MD5

    3b885ddc27f542ab37b2396c624636bf

  • SHA1

    3c572136ba01a9adf1645e0ec29503be85a4fabd

  • SHA256

    dad6ab102599c5cb76607a39bc989acdb3f0caad236d54965845e1f52ba64227

  • SHA512

    a5c1a367099769def5aaad14efb353616386bd85aca6dac684c33d3abbc29ace0cdc4914307a2464f3028c90a95e07d316235542470fb5eff345111b1bb6b5e2

  • SSDEEP

    6144:PBCbU10CHdesprzuj8Vw7fNiu19xDkxdWrdc4cysWfp0ttPsYVoIBcNrLt/dzZ2X:T0Yrzumw7fNi09xDkxdWrdc4cspMPZA+

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-20_3b885ddc27f542ab37b2396c624636bf_virlock

    • Size

      204KB

    • MD5

      3b885ddc27f542ab37b2396c624636bf

    • SHA1

      3c572136ba01a9adf1645e0ec29503be85a4fabd

    • SHA256

      dad6ab102599c5cb76607a39bc989acdb3f0caad236d54965845e1f52ba64227

    • SHA512

      a5c1a367099769def5aaad14efb353616386bd85aca6dac684c33d3abbc29ace0cdc4914307a2464f3028c90a95e07d316235542470fb5eff345111b1bb6b5e2

    • SSDEEP

      6144:PBCbU10CHdesprzuj8Vw7fNiu19xDkxdWrdc4cysWfp0ttPsYVoIBcNrLt/dzZ2X:T0Yrzumw7fNi09xDkxdWrdc4cspMPZA+

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (60) 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.

    • Deletes itself

    • 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks