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Analysis

  • max time kernel
    148s
  • 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
    25/09/2024, 18:48

General

  • Target

    file.exe

  • Size

    403KB

  • MD5

    8b0b12811b60a92a72b636a46fadb0ba

  • SHA1

    0ab6b31b69b7964de2e9639169d036c68f9efd76

  • SHA256

    1174cade1bd7b389c084b340898d4afd84e1145d9294d8a550f3a532f09cda7c

  • SHA512

    abf908cb7505acd792aa1d9a346ec1b635f5c078ad2104b5d5a0678cc54e216a843fbacba25ebff6a7baed6a6463ee8fc433ff1c71178775366b7f4aade1227a

  • SSDEEP

    12288:dHROWCWIpXQ6dvhXe+iGaXImXN18/7LV+z+0EO:ludvbwX4/7LV/0t

Malware Config

Extracted

Family

vidar

Version

11

Botnet

9bf5e431869643a2ac397d2dc0d687fb

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 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4052
      • 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:4656

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2972-0-0x0000000074F3E000-0x0000000074F3F000-memory.dmp

      Filesize

      4KB

    • memory/2972-1-0x0000000000D10000-0x0000000000D78000-memory.dmp

      Filesize

      416KB

    • memory/2972-11-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/2972-20-0x0000000074F30000-0x00000000756E0000-memory.dmp

      Filesize

      7.7MB

    • memory/4656-3-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/4656-8-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/4656-6-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/4656-18-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/4656-19-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/4656-21-0x00000000226E0000-0x000000002293F000-memory.dmp

      Filesize

      2.4MB

    • memory/4656-36-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB

    • memory/4656-37-0x0000000000400000-0x0000000000676000-memory.dmp

      Filesize

      2.5MB