Overview

overview

10

Static

static

3

2024-05-25...ck.exe

windows7-x64

10

2024-05-25...ck.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2024-05-25_62f57591bd75736d3cfff386efee6fe3_virlock

  • Size

    646KB

  • Sample

    240525-r3w37agb3y

  • MD5

    62f57591bd75736d3cfff386efee6fe3

  • SHA1

    16bbf2b4d047a94be32d0d20b29bbf82bf1d7cf6

  • SHA256

    9059ea3ee94f2f28ef7707563cf8a908a8458b5b79e13cbff29c5fbfae9d4ca0

  • SHA512

    73afd00e46e319a54b4be727dbfa96e83e464405e45d9370379ee095d70728e704b371150dd48df8a0d22db8022dd7fbd460bd1289983c41600bfeae2bd741af

  • SSDEEP

    12288:daZ2LyqQBke1HfFATBHE5pqWfyBZGphrOb:mFqQWTBHE5pRfdppI

Score
10/10
evasionpersistenceransomwarespywarestealertrojan

Malware Config

Targets

    • Target

      2024-05-25_62f57591bd75736d3cfff386efee6fe3_virlock

    • Size

      646KB

    • MD5

      62f57591bd75736d3cfff386efee6fe3

    • SHA1

      16bbf2b4d047a94be32d0d20b29bbf82bf1d7cf6

    • SHA256

      9059ea3ee94f2f28ef7707563cf8a908a8458b5b79e13cbff29c5fbfae9d4ca0

    • SHA512

      73afd00e46e319a54b4be727dbfa96e83e464405e45d9370379ee095d70728e704b371150dd48df8a0d22db8022dd7fbd460bd1289983c41600bfeae2bd741af

    • SSDEEP

      12288:daZ2LyqQBke1HfFATBHE5pqWfyBZGphrOb:mFqQWTBHE5pRfdppI

    Score
    10/10
    evasionpersistenceransomwarespywarestealertrojan

    • Modifies visibility of file extensions in Explorer

      evasion

    • UAC bypass

      evasiontrojan

    • Renames multiple (55) 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