Overview

overview

10

Static

static

3

2024-05-27...ck.exe

windows7-x64

10

2024-05-27...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-27_08bf07617f638ca63e87c9202ba5c263_virlock

  • Size

    205KB

  • Sample

    240527-hgxcdsbd4t

  • MD5

    08bf07617f638ca63e87c9202ba5c263

  • SHA1

    04746095bdc5921c67e4e2467e9bd7edc3d6d730

  • SHA256

    e5f461064357626ad3a8803cd9432520535324cc6da86adffb78893b9d1153da

  • SHA512

    dd05babf5c142fde37b9067cc8bfd226d4317dc115799ee631982669a3b2481a5aaf20903c32d3a5d22bf3962e448d32a19463ee85c2ec8b11bc997d0bd730c2

  • SSDEEP

    3072:OqqTE1waj7egh3kk58mMhRI9HU3MEMzbHg9ZCd9Yx562B91q5T/:Oq4Yj7e8FMjuU8zbHg9ua762B90T/

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-27_08bf07617f638ca63e87c9202ba5c263_virlock

    • Size

      205KB

    • MD5

      08bf07617f638ca63e87c9202ba5c263

    • SHA1

      04746095bdc5921c67e4e2467e9bd7edc3d6d730

    • SHA256

      e5f461064357626ad3a8803cd9432520535324cc6da86adffb78893b9d1153da

    • SHA512

      dd05babf5c142fde37b9067cc8bfd226d4317dc115799ee631982669a3b2481a5aaf20903c32d3a5d22bf3962e448d32a19463ee85c2ec8b11bc997d0bd730c2

    • SSDEEP

      3072:OqqTE1waj7egh3kk58mMhRI9HU3MEMzbHg9ZCd9Yx562B91q5T/:Oq4Yj7e8FMjuU8zbHg9ua762B90T/

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (61) 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