Overview

overview

10

Static

static

3

2024-03-28...ck.exe

windows7-x64

10

2024-03-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-03-28_504af718858a2c430d2bfd4c2951f19d_virlock

  • Size

    111KB

  • Sample

    240328-svn82sae56

  • MD5

    504af718858a2c430d2bfd4c2951f19d

  • SHA1

    226e8ecd16f59c19b7748508f14191700d6d2ce4

  • SHA256

    6e987d3a0c2243ab7ed4809763bed0429560698d416975416fa73c2ebe3a7620

  • SHA512

    4a3e49fb6f5c6e63e9fd24e3158ba0c45ea8cbbde3e6249c73d4a5ece990346517951263617ba87ec33125cc84e0f7c6770fc4fd884accec2fcf30798959f40d

  • SSDEEP

    3072:uMam5eOBP3lbL83kiPk1R1Fq8TxtkZ6hG2sG039Ar4aEpAxz0u57aoa+Ng3ACSav:uMaWPRiFCtkZ6hG2f039Ar4aEpAxz0u2

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-03-28_504af718858a2c430d2bfd4c2951f19d_virlock

    • Size

      111KB

    • MD5

      504af718858a2c430d2bfd4c2951f19d

    • SHA1

      226e8ecd16f59c19b7748508f14191700d6d2ce4

    • SHA256

      6e987d3a0c2243ab7ed4809763bed0429560698d416975416fa73c2ebe3a7620

    • SHA512

      4a3e49fb6f5c6e63e9fd24e3158ba0c45ea8cbbde3e6249c73d4a5ece990346517951263617ba87ec33125cc84e0f7c6770fc4fd884accec2fcf30798959f40d

    • SSDEEP

      3072:uMam5eOBP3lbL83kiPk1R1Fq8TxtkZ6hG2sG039Ar4aEpAxz0u57aoa+Ng3ACSav:uMaWPRiFCtkZ6hG2f039Ar4aEpAxz0u2

    Score
    10/10
    evasionpersistencetrojanransomwarespywarestealer

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (82) 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