Overview

overview

10

Static

static

3

2024-03-05...ck.exe

windows7-x64

10

2024-03-05...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-05_e39232e5ec6244ba0ca76b561b24b988_virlock

  • Size

    564KB

  • Sample

    240305-s48daabd22

  • MD5

    e39232e5ec6244ba0ca76b561b24b988

  • SHA1

    57a19ed1f6ac1f701caaa80471e31e6923d7d401

  • SHA256

    74b56eeb464c938207d078cd1b7c30c405847973087233df7da01cec6bc25698

  • SHA512

    2dddcf6491a1c4311b6962a6b0cb5efb30d2567ef719008a6353fad250b26d36a9fbfeab312a95272ed305f35f1e98d2f7f4fbd28fd2552b9c67a5e5325f4160

  • SSDEEP

    12288:mWMOOw7z+uDqUrafOXqjwpPavsx7kT89zO0M:TMsOadXYwB2G7Gx

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-05_e39232e5ec6244ba0ca76b561b24b988_virlock

    • Size

      564KB

    • MD5

      e39232e5ec6244ba0ca76b561b24b988

    • SHA1

      57a19ed1f6ac1f701caaa80471e31e6923d7d401

    • SHA256

      74b56eeb464c938207d078cd1b7c30c405847973087233df7da01cec6bc25698

    • SHA512

      2dddcf6491a1c4311b6962a6b0cb5efb30d2567ef719008a6353fad250b26d36a9fbfeab312a95272ed305f35f1e98d2f7f4fbd28fd2552b9c67a5e5325f4160

    • SSDEEP

      12288:mWMOOw7z+uDqUrafOXqjwpPavsx7kT89zO0M:TMsOadXYwB2G7Gx

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (78) 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 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