Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240419-en
  • resource tags

    arch:x64arch:x86image:win11-20240419-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-06-2024 02:24

General

  • Target

    aadb0bfce0f8a35fe059f727632b7cb015ebdaf47868378cb4250c46ea93d2f3.exe

  • Size

    2.2MB

  • MD5

    e7e7b830c64a61d919b90fb428c18530

  • SHA1

    7999b8c979cbca253d088fad485770070b2dc2a5

  • SHA256

    aadb0bfce0f8a35fe059f727632b7cb015ebdaf47868378cb4250c46ea93d2f3

  • SHA512

    c8c0d2303edb070a8636d78bc2ee4a3f3e8f0e6117ac0e11978ce4c4c002328f430d1d85720ea7d0bd4c574e1c838aee3d58ca86d9e39f17519047d3e5958bb5

  • SSDEEP

    49152:qpjNvr9ySAOmw41HHO+SASagXkJr4MDkUwm:qpjNp7p41HH8n5A

Malware Config

Extracted

Family

vidar

C2

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

  • Detect Vidar Stealer 13 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\aadb0bfce0f8a35fe059f727632b7cb015ebdaf47868378cb4250c46ea93d2f3.exe
    "C:\Users\Admin\AppData\Local\Temp\aadb0bfce0f8a35fe059f727632b7cb015ebdaf47868378cb4250c46ea93d2f3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Users\Admin\AppData\Local\Temp\kat4F97.tmp
      C:\Users\Admin\AppData\Local\Temp\kat4F97.tmp
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5028
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat4F97.tmp" & rd /s /q "C:\ProgramData\GHDAAKJEGCFC" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3176
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • Delays execution with timeout.exe
          PID:2320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\kat4F97.tmp

    Filesize

    861KB

    MD5

    66064dbdb70a5eb15ebf3bf65aba254b

    SHA1

    0284fd320f99f62aca800fb1251eff4c31ec4ed7

    SHA256

    6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

    SHA512

    b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

  • memory/3932-1-0x00000000040D0000-0x00000000041E0000-memory.dmp

    Filesize

    1.1MB

  • memory/3932-0-0x00000000024A0000-0x00000000024A1000-memory.dmp

    Filesize

    4KB

  • memory/3932-10-0x0000000000400000-0x0000000000635000-memory.dmp

    Filesize

    2.2MB

  • memory/5028-25-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-9-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-8-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-24-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-4-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-27-0x0000000024DF0000-0x000000002504F000-memory.dmp

    Filesize

    2.4MB

  • memory/5028-42-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-43-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-59-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-60-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-71-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-72-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB

  • memory/5028-75-0x0000000000400000-0x0000000000648000-memory.dmp

    Filesize

    2.3MB