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Overview

overview

10

Static

static

3

2024-01-26...ck.exe

windows7-x64

10

2024-01-26...ck.exe

windows10-2004-x64

10

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General

  • Target

    2024-01-26_fefb3a079b24f37564c0002d4bceb9d8_virlock

  • Size

    137KB

  • Sample

    240126-jxe9gsafdl

  • MD5

    fefb3a079b24f37564c0002d4bceb9d8

  • SHA1

    f50131a6d417d09722f83c5b98c02e58d2340b88

  • SHA256

    7b04265eb3bb9bc8316afdbd0ad01249a6fec9a857972852344fac0d8a475b75

  • SHA512

    3481ca3d0b183565140acee517379250581b2fc95fd75444684a82949a2037809c18f084d4dbccedea040d478a3c550f606a73a4716700c5817ab9d7a2ad956b

  • SSDEEP

    3072:T49mUD1IO17vumob4/aUiymnQqU6xUIhrafbwTwAr33OFqjhqYX:T3CP7X3aUjTqU6LrqkTtrn5lqC

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-01-26_fefb3a079b24f37564c0002d4bceb9d8_virlock

    • Size

      137KB

    • MD5

      fefb3a079b24f37564c0002d4bceb9d8

    • SHA1

      f50131a6d417d09722f83c5b98c02e58d2340b88

    • SHA256

      7b04265eb3bb9bc8316afdbd0ad01249a6fec9a857972852344fac0d8a475b75

    • SHA512

      3481ca3d0b183565140acee517379250581b2fc95fd75444684a82949a2037809c18f084d4dbccedea040d478a3c550f606a73a4716700c5817ab9d7a2ad956b

    • SSDEEP

      3072:T49mUD1IO17vumob4/aUiymnQqU6xUIhrafbwTwAr33OFqjhqYX:T3CP7X3aUjTqU6LrqkTtrn5lqC

    Score
    10/10
    evasionpersistencespywarestealertrojanransomware

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (85) 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

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Tasks