Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 11:51

General

  • Target

    3488e03d77adbc21c7b2c40c25efad0e8460edc622b39a6f710573555640e902.exe

  • Size

    362KB

  • MD5

    fc148c7ac5b051bff69132510070111c

  • SHA1

    907a5f1bedf76caafa4dbe6c44a73f68102c1e99

  • SHA256

    3488e03d77adbc21c7b2c40c25efad0e8460edc622b39a6f710573555640e902

  • SHA512

    68c2d90f37d2f8976e34e07ff975775d802df70f089352cbebfb2b010a80e3fbc5b307fc00f72faf9cc359f9cf74accb8d5887f7d084bfd52c2696a3ec9881c9

  • SSDEEP

    6144:0bUUyKiCMR7q3HhN4ZDYCg2eyd6Jo4vb/noeUDebE8B:0bU1RGRITgs8JPLKDebEg

Malware Config

Extracted

Family

stealc

Botnet

default9_cap

C2

http://62.204.41.177

Attributes
  • url_path

    /edd20096ecef326d.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Stealc family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3488e03d77adbc21c7b2c40c25efad0e8460edc622b39a6f710573555640e902.exe
    "C:\Users\Admin\AppData\Local\Temp\3488e03d77adbc21c7b2c40c25efad0e8460edc622b39a6f710573555640e902.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5008
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\3488e03d77adbc21c7b2c40c25efad0e8460edc622b39a6f710573555640e902.exe" & del "C:\ProgramData\*.dll"" & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2732
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 5008 -s 1352
      2⤵
      • Program crash
      PID:4900
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5008 -ip 5008
    1⤵
      PID:3224

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5008-1-0x0000000002D80000-0x0000000002E80000-memory.dmp

      Filesize

      1024KB

    • memory/5008-2-0x0000000002CD0000-0x0000000002D1E000-memory.dmp

      Filesize

      312KB

    • memory/5008-3-0x0000000000400000-0x0000000000661000-memory.dmp

      Filesize

      2.4MB

    • memory/5008-6-0x0000000000400000-0x0000000000661000-memory.dmp

      Filesize

      2.4MB

    • memory/5008-5-0x0000000002CD0000-0x0000000002D1E000-memory.dmp

      Filesize

      312KB

    • memory/5008-4-0x0000000000400000-0x0000000002B5F000-memory.dmp

      Filesize

      39.4MB