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Overview

overview

10

Static

static

3

2024-09-21...ck.exe

windows7-x64

10

2024-09-21...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-09-21_45a8f1d820c3403dde271c0faa694568_virlock

  • Size

    643KB

  • Sample

    240921-tw61xs1gra

  • MD5

    45a8f1d820c3403dde271c0faa694568

  • SHA1

    3b5a221985b10b5c5a0146cb146dc930bb794172

  • SHA256

    bc0101a5c611d08324e25345c5d046459044793f1e7248806a2eea685b875486

  • SHA512

    94a394550981ddad17713a421463a36e13653d8abd172ec846fc4d6cae37fbdfd1ca1dcbfe2083b0040cbea8164af5ad4bdf6587cd5bc9e21e5e0b6b60ffcd4d

  • SSDEEP

    12288:SHLFzllPJ6MjDvdBE3vqlw7C4zovwjCVOHBXpeaTIKrYNx5l9iLf7yDn3:aLbZDPlwG/viCVoXppTIKrwiLfGDn3

Score
10/10
discoveryevasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-09-21_45a8f1d820c3403dde271c0faa694568_virlock

    • Size

      643KB

    • MD5

      45a8f1d820c3403dde271c0faa694568

    • SHA1

      3b5a221985b10b5c5a0146cb146dc930bb794172

    • SHA256

      bc0101a5c611d08324e25345c5d046459044793f1e7248806a2eea685b875486

    • SHA512

      94a394550981ddad17713a421463a36e13653d8abd172ec846fc4d6cae37fbdfd1ca1dcbfe2083b0040cbea8164af5ad4bdf6587cd5bc9e21e5e0b6b60ffcd4d

    • SSDEEP

      12288:SHLFzllPJ6MjDvdBE3vqlw7C4zovwjCVOHBXpeaTIKrYNx5l9iLf7yDn3:aLbZDPlwG/viCVoXppTIKrwiLfGDn3

    Score
    10/10
    discoveryevasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (63) 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

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks