Overview

overview

10

Static

static

3

2024-05-22...ck.exe

windows7-x64

10

2024-05-22...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-22_897313abdbf2c7e4545171f57a4f0b98_virlock

  • Size

    307KB

  • Sample

    240522-zxhmlsgf3t

  • MD5

    897313abdbf2c7e4545171f57a4f0b98

  • SHA1

    a83aefa651ceab1a7a17981317828ff335c27c93

  • SHA256

    0e6cc20075e423f0f8230ce806f2b302bc7a96be4c02789bcb16d6d65c289fa6

  • SHA512

    d6eef1c9a2e395ee8ad881fbdc12c0ef87e7226025735aa0cce8ec21503856465a3efb7de2b8d55f779079e80d2f90f5e31f101fa487c3ba55f3b3fd82292752

  • SSDEEP

    6144:1a0MoViXlzzDYxESpmFyUhpV5Udgbhp6ng10OaXlZ:1P1VWz0hp1uVWdglA1X

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-22_897313abdbf2c7e4545171f57a4f0b98_virlock

    • Size

      307KB

    • MD5

      897313abdbf2c7e4545171f57a4f0b98

    • SHA1

      a83aefa651ceab1a7a17981317828ff335c27c93

    • SHA256

      0e6cc20075e423f0f8230ce806f2b302bc7a96be4c02789bcb16d6d65c289fa6

    • SHA512

      d6eef1c9a2e395ee8ad881fbdc12c0ef87e7226025735aa0cce8ec21503856465a3efb7de2b8d55f779079e80d2f90f5e31f101fa487c3ba55f3b3fd82292752

    • SSDEEP

      6144:1a0MoViXlzzDYxESpmFyUhpV5Udgbhp6ng10OaXlZ:1P1VWz0hp1uVWdglA1X

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (62) 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