Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-28_3414b9dab576b04b3d434d024814b37b_virlock

  • Size

    193KB

  • Sample

    240428-pnx1tsgb8v

  • MD5

    3414b9dab576b04b3d434d024814b37b

  • SHA1

    58af35de5df404d5fb254fc6bb12b593ce1a53c8

  • SHA256

    fe624bc3ace0ff8a497e2b811b49d7e4cde3c5ca267b71843725d741d9747824

  • SHA512

    4f62139ad922da2e23cd313b0d7bdc25b201d72b1d036a2c1f95c9cb0c5767d5c18f5ad48b2668fe7470fd40c63f26ca6bf3fa268581206f7ae3b1ac5a131a57

  • SSDEEP

    3072:0sNHrBhbzwGj9vTj9+M9G3S7V4hL8H6X8OUs0DHAa1ApZbNa+Z:0sNLnbzwG9j/9zV4lGOgga1ApZ5B

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_3414b9dab576b04b3d434d024814b37b_virlock

    • Size

      193KB

    • MD5

      3414b9dab576b04b3d434d024814b37b

    • SHA1

      58af35de5df404d5fb254fc6bb12b593ce1a53c8

    • SHA256

      fe624bc3ace0ff8a497e2b811b49d7e4cde3c5ca267b71843725d741d9747824

    • SHA512

      4f62139ad922da2e23cd313b0d7bdc25b201d72b1d036a2c1f95c9cb0c5767d5c18f5ad48b2668fe7470fd40c63f26ca6bf3fa268581206f7ae3b1ac5a131a57

    • SSDEEP

      3072:0sNHrBhbzwGj9vTj9+M9G3S7V4hL8H6X8OUs0DHAa1ApZbNa+Z:0sNLnbzwG9j/9zV4lGOgga1ApZ5B

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (59) 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