Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-04-28_c6859a89047c0dc4993f08237fccc298_virlock

  • Size

    205KB

  • Sample

    240428-mj8wesdf95

  • MD5

    c6859a89047c0dc4993f08237fccc298

  • SHA1

    09afc449e3fd40edcbe6bad3b0e3c4f21d4bc70c

  • SHA256

    36dba5d198cbeb1e5280e2246b0b09882350aba2df50e4dc9b8772ff6a97c0ba

  • SHA512

    c8620fe7dae22bd6f30fda982f8bde295d505818869f08a62d60eb9c3e1380eec137799a83c6e515fc0e74a6d37f59f3fb2a21d3e5a9fa9ce576cf119c8f17f8

  • SSDEEP

    3072:LTU62J3w1gT7P6fDPHpVkEiH7+4+69FQ332wtCnXJZcDFU8Zxz6Y5tVSrQCMVqG:LD2cHgj/wknXYDFJ6YfU0Ccx

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_c6859a89047c0dc4993f08237fccc298_virlock

    • Size

      205KB

    • MD5

      c6859a89047c0dc4993f08237fccc298

    • SHA1

      09afc449e3fd40edcbe6bad3b0e3c4f21d4bc70c

    • SHA256

      36dba5d198cbeb1e5280e2246b0b09882350aba2df50e4dc9b8772ff6a97c0ba

    • SHA512

      c8620fe7dae22bd6f30fda982f8bde295d505818869f08a62d60eb9c3e1380eec137799a83c6e515fc0e74a6d37f59f3fb2a21d3e5a9fa9ce576cf119c8f17f8

    • SSDEEP

      3072:LTU62J3w1gT7P6fDPHpVkEiH7+4+69FQ332wtCnXJZcDFU8Zxz6Y5tVSrQCMVqG:LD2cHgj/wknXYDFJ6YfU0Ccx

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (58) 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