Analysis

  • max time kernel
    1s
  • max time network
    100s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    07-06-2024 03:35

General

  • Target

    67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe

  • Size

    2.9MB

  • MD5

    3765f2522f3544aa1fadef36a62c0c09

  • SHA1

    c550eac426af9007e0ccec9c879021cc408e17d7

  • SHA256

    67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa

  • SHA512

    7ed7ede8897f65339732b705f950134ac4e2a3d2ee1aab3e29d50ed5c2894b473b9a798fb2218704a9f852f93c89fd34c19e48f074f381d839e4dd426076ba11

  • SSDEEP

    49152:rtpSxptE1AKnCtMS4cdR/z4+UVi4e9Crn:r/4nE1dCiKxx4e9Cb

Score
10/10

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 8 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Executes dropped EXE 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe
    "C:\Users\Admin\AppData\Local\Temp\67fbf8993a834461d0dccdad8dc8190e6851d280286e322fedc13cef37f6c5fa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Users\Admin\AppData\Local\Temp\kat59F7.tmp
      C:\Users\Admin\AppData\Local\Temp\kat59F7.tmp
      2⤵
      • Executes dropped EXE
      PID:5096

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\kat59F7.tmp

    Filesize

    861KB

    MD5

    66064dbdb70a5eb15ebf3bf65aba254b

    SHA1

    0284fd320f99f62aca800fb1251eff4c31ec4ed7

    SHA256

    6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

    SHA512

    b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

  • memory/1100-0-0x0000000002550000-0x0000000002551000-memory.dmp

    Filesize

    4KB

  • memory/1100-1-0x0000000004170000-0x00000000042D6000-memory.dmp

    Filesize

    1.4MB

  • memory/1100-9-0x0000000000400000-0x00000000006EF000-memory.dmp

    Filesize

    2.9MB

  • memory/5096-10-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5096-8-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5096-4-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5096-15-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5096-16-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5096-19-0x0000000019360000-0x00000000195BF000-memory.dmp

    Filesize

    2.4MB

  • memory/5096-33-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5096-34-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB