Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 01:56

General

  • Target

    f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe

  • Size

    403KB

  • MD5

    2cce29d734ea1d227b338834698e2de4

  • SHA1

    41700cd1bcf5f5bcca81ce722ed47fc17bd030c2

  • SHA256

    f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d

  • SHA512

    ea0b440113a225764b38ae2526a10f7e4f3081e4a353e9831cf0e846ac7ba97ea7c2b4a12ab6fac5708a7855da8967f1b6bc661757dc68d819d11887a6af20b5

  • SSDEEP

    6144:O+0dGgr04h1LBuTmcYz43wUDPNvms5PYYzX3oYbEU6DsV4+1/QSyiZEO:30d/h1LBK13wUjx5QYTo0EUBVSS/EO

Malware Config

Extracted

Family

vidar

Version

11

Botnet

e90840a846d017e7b095f7543cdf2d15

C2

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe
    "C:\Users\Admin\AppData\Local\Temp\f75acf936390f89239c43552717efb65c4c3190b16a7eec62dcd0053a045e91d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4072
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:4484

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/4072-0-0x000000007539E000-0x000000007539F000-memory.dmp

    Filesize

    4KB

  • memory/4072-1-0x0000000000DD0000-0x0000000000E38000-memory.dmp

    Filesize

    416KB

  • memory/4072-5-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/4072-37-0x0000000075390000-0x0000000075B40000-memory.dmp

    Filesize

    7.7MB

  • memory/4484-3-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4484-7-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4484-9-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4484-18-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4484-19-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4484-21-0x0000000022860000-0x0000000022ABF000-memory.dmp

    Filesize

    2.4MB

  • memory/4484-35-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB

  • memory/4484-36-0x0000000000400000-0x0000000000676000-memory.dmp

    Filesize

    2.5MB