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Overview

overview

10

Static

static

3

2024-02-24...ck.exe

windows7-x64

10

2024-02-24...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-02-24_81f464dd00141b7784c084b88c89f06d_virlock

  • Size

    652KB

  • Sample

    240224-hdf61ada2y

  • MD5

    81f464dd00141b7784c084b88c89f06d

  • SHA1

    aac4db3d5e000e5f7ed26a3f914b6c8cfb941c5c

  • SHA256

    30a3ecc0b679a97e4a1f790e41537a4295cd4c2ff92577cb1daafd747749de82

  • SHA512

    13d0538783600ffb2b520ef8ae0139ea25987e8394a25e921247458fe3872c098d3a1bbc442c62ca9a0f08f46b871e4eedde4be9e99d0e8fe5034e2302a10fce

  • SSDEEP

    12288:60IcF+Sz07x25mkE/1i9Y1u4CNlY6bKokR+NDDgJK:zfV07YmJ131mlY6fDDg8

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-02-24_81f464dd00141b7784c084b88c89f06d_virlock

    • Size

      652KB

    • MD5

      81f464dd00141b7784c084b88c89f06d

    • SHA1

      aac4db3d5e000e5f7ed26a3f914b6c8cfb941c5c

    • SHA256

      30a3ecc0b679a97e4a1f790e41537a4295cd4c2ff92577cb1daafd747749de82

    • SHA512

      13d0538783600ffb2b520ef8ae0139ea25987e8394a25e921247458fe3872c098d3a1bbc442c62ca9a0f08f46b871e4eedde4be9e99d0e8fe5034e2302a10fce

    • SSDEEP

      12288:60IcF+Sz07x25mkE/1i9Y1u4CNlY6bKokR+NDDgJK:zfV07YmJ131mlY6fDDg8

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (58) 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 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

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks