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Analysis

  • max time kernel
    95s
  • 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
    20/09/2024, 11:06

General

  • Target

    f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6.exe

  • Size

    293KB

  • MD5

    b751220c1be48fcb6788c699b96256f9

  • SHA1

    503b64a2d3d276dfd676897d5f7bab42da52d5f6

  • SHA256

    f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6

  • SHA512

    33e033619cb0171ed6cc58c1244a9f9e114b06a744978302936ed2cddc514f525b6209caccbff89f458dcd4819a85b53568a96ea854ced7da6bfd837cef6152e

  • SSDEEP

    3072:swHSeMPv5iD9XhwPCGsJfaIeq+5ubKjW4tCk9j4tTG60OvRQlLvh0D2a0nZ0iUYx:zHSeMPuXhwSm5Jy89j4pKPrI6uiVvTEO

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

  • Detect Vidar Stealer 7 IoCs
  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Reads user/profile data of web browsers 2 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\f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6.exe
    "C:\Users\Admin\AppData\Local\Temp\f85d8599ca58d0d08292f94a6c51d6d8d21f050fef35862392106c549b12fba6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2880
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:3376
      • 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:3344

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2880-7-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2880-1-0x0000000000110000-0x000000000015A000-memory.dmp

      Filesize

      296KB

    • memory/2880-2-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/2880-0-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

      Filesize

      4KB

    • memory/2880-6-0x0000000074AF0000-0x00000000752A0000-memory.dmp

      Filesize

      7.7MB

    • memory/3344-11-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/3344-4-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/3344-9-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/3344-25-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/3344-26-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/3344-27-0x00000000203D0000-0x000000002062F000-memory.dmp

      Filesize

      2.4MB

    • memory/3344-42-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB

    • memory/3344-43-0x0000000000400000-0x0000000000657000-memory.dmp

      Filesize

      2.3MB