Overview

overview

10

Static

static

3

2024-04-28...ck.exe

windows7-x64

10

2024-04-28...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-04-28_8f7ad9e79a52d8e7c465bb733d978d7c_virlock

  • Size

    565KB

  • Sample

    240428-pa7m4sfg2s

  • MD5

    8f7ad9e79a52d8e7c465bb733d978d7c

  • SHA1

    25bbc25ca2fcaa5fcfa422de8659bfd663496906

  • SHA256

    07a70ff7ecc69ae6ecf971986626bbb94bda2bb5546e5508cead8ee91032ab92

  • SHA512

    dd08d8285d4c34fa0f4904cb4b9ed4925562c993c0e0a2f623c476dcafb404da529dcd9b5b5a7c21ab93e3f657956987af9e1afc38d08decff7c9ac65305b9f6

  • SSDEEP

    12288:uCg8SMymvqrzPTiz8FRjEB28XrLX/sjg2nUb645Xny33haQpFfY6hq8mxeT:08SMTvqrzOERjo7XR6Sw

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-04-28_8f7ad9e79a52d8e7c465bb733d978d7c_virlock

    • Size

      565KB

    • MD5

      8f7ad9e79a52d8e7c465bb733d978d7c

    • SHA1

      25bbc25ca2fcaa5fcfa422de8659bfd663496906

    • SHA256

      07a70ff7ecc69ae6ecf971986626bbb94bda2bb5546e5508cead8ee91032ab92

    • SHA512

      dd08d8285d4c34fa0f4904cb4b9ed4925562c993c0e0a2f623c476dcafb404da529dcd9b5b5a7c21ab93e3f657956987af9e1afc38d08decff7c9ac65305b9f6

    • SSDEEP

      12288:uCg8SMymvqrzPTiz8FRjEB28XrLX/sjg2nUb645Xny33haQpFfY6hq8mxeT:08SMTvqrzOERjo7XR6Sw

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (83) 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
    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