Overview

overview

10

Static

static

3

2024-04-25...ck.exe

windows7-x64

10

2024-04-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-25_2c922fef3817033e07923acb1c83ca4b_virlock

  • Size

    138KB

  • Sample

    240425-zmmhtaee8z

  • MD5

    2c922fef3817033e07923acb1c83ca4b

  • SHA1

    7ec8064737466cbd62fe4dde51437a67f94864c0

  • SHA256

    9931fc19cd4087666519d2d8e987e7616ff839ed5c987c89ed26887b2fdce930

  • SHA512

    6261b58c396ae329581b434b852318e1e29ba700638788dccf4a12511647e06e416e4666910abaef62e29574d251ef0f7956aec525b4ce57156c5e61586a282b

  • SSDEEP

    3072:nIF8qys2jRb89mzstjtxO7tgn4tnjLwogsXQDIwoCi6x:IGjsgb8UstjtxOu4tXXqIwdiU

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-25_2c922fef3817033e07923acb1c83ca4b_virlock

    • Size

      138KB

    • MD5

      2c922fef3817033e07923acb1c83ca4b

    • SHA1

      7ec8064737466cbd62fe4dde51437a67f94864c0

    • SHA256

      9931fc19cd4087666519d2d8e987e7616ff839ed5c987c89ed26887b2fdce930

    • SHA512

      6261b58c396ae329581b434b852318e1e29ba700638788dccf4a12511647e06e416e4666910abaef62e29574d251ef0f7956aec525b4ce57156c5e61586a282b

    • SSDEEP

      3072:nIF8qys2jRb89mzstjtxO7tgn4tnjLwogsXQDIwoCi6x:IGjsgb8UstjtxOu4tXXqIwdiU

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (86) 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

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks