Analysis

  • max time kernel
    134s
  • max time network
    298s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    07-06-2024 01:48

General

  • Target

    d83b46ddb754b838983651b38bcd55ccdd09cae1e79ea9c0e8b3d0c01e2db59f.exe

  • Size

    3.1MB

  • MD5

    50be5d01f679a874802ddaac7c5f0169

  • SHA1

    d8e512434a94b0e123d1b7e0f4f4044252d7f238

  • SHA256

    d83b46ddb754b838983651b38bcd55ccdd09cae1e79ea9c0e8b3d0c01e2db59f

  • SHA512

    24e252b66ffe35845a03a5553096a018f91d6b3d0a36ba3aa0afab9e006dea35a14075e860b34a7fec9b7d34fd7a8e0516d43d9306afd70ee9a882fd27634f37

  • SSDEEP

    98304:yrvT3E7GFI/apsT+9w0+xobK8U9Ve7MpSfwYfiJkju9wxZmcp4/uV8rSBgXmVVKJ:i3E7GFI/apsT+9w0+xobK8U9Ve7MpSfk

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://t.me/r8z0l

https://steamcommunity.com/profiles/76561199698764354

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Signatures

  • Detect Vidar Stealer 5 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • .NET Reactor proctector 1 IoCs

    Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d83b46ddb754b838983651b38bcd55ccdd09cae1e79ea9c0e8b3d0c01e2db59f.exe
    "C:\Users\Admin\AppData\Local\Temp\d83b46ddb754b838983651b38bcd55ccdd09cae1e79ea9c0e8b3d0c01e2db59f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:512
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
        PID:2604
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
        2⤵
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:3380

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/512-24-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-29-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-2-0x0000000005BA0000-0x0000000005C3C000-memory.dmp

      Filesize

      624KB

    • memory/512-48-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-4-0x0000000005CB0000-0x0000000005DB0000-memory.dmp

      Filesize

      1024KB

    • memory/512-5-0x0000000005DB0000-0x0000000005E64000-memory.dmp

      Filesize

      720KB

    • memory/512-6-0x0000000005B40000-0x0000000005B5C000-memory.dmp

      Filesize

      112KB

    • memory/512-18-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-7-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-71-0x0000000073FA0000-0x000000007468E000-memory.dmp

      Filesize

      6.9MB

    • memory/512-50-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-8-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-46-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-64-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-63-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-60-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-58-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-57-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-54-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-52-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-10-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-3-0x0000000073FA0000-0x000000007468E000-memory.dmp

      Filesize

      6.9MB

    • memory/512-66-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-44-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-42-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-40-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-38-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-36-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-35-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-32-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-30-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-1-0x0000000000FB0000-0x00000000012D8000-memory.dmp

      Filesize

      3.2MB

    • memory/512-26-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-0-0x0000000073FAE000-0x0000000073FAF000-memory.dmp

      Filesize

      4KB

    • memory/512-22-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-20-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-16-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-14-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/512-12-0x0000000005B40000-0x0000000005B55000-memory.dmp

      Filesize

      84KB

    • memory/3380-72-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3380-69-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3380-67-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3380-87-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB

    • memory/3380-118-0x0000000000400000-0x0000000000648000-memory.dmp

      Filesize

      2.3MB