Analysis

  • max time kernel
    96s
  • max time network
    99s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2024 15:07

General

  • Target

    0x000c0000000234ed-1063.exe

  • Size

    7.1MB

  • MD5

    f6c26e56c21e80ece28c34c1491cd173

  • SHA1

    2cb59f35292b92d79c6a4c569c58b5871bd9bf94

  • SHA256

    a88e34617a82ee8f03c33ded79042a0d8f4655daf4de40d819e74448f9c34fc1

  • SHA512

    2228aa271ca678d7db627a39f8affcdc7266123ddd99da357b60a37d0b77a2a78509184a3cc302064a88ba225dee61ba43e4ae7e64546cc816845d92ad15b5b6

  • SSDEEP

    98304:diMrdaUIJ3sxQvmzLvqwBOZTcjgxffDjqJLzEw5blkyD9OQUYn:Yi68xQ+zLJOZwjgZbeB0Yn

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland3

C2

http://45.152.112.131

Attributes
  • url_path

    /8ee66a3c8f19e4b5.php

Signatures

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Stealc

    Stealc is an infostealer written in C++.

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

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 6 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0x000c0000000234ed-1063.exe
    "C:\Users\Admin\AppData\Local\Temp\0x000c0000000234ed-1063.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3128
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\SysWOW64\cmd.exe
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:4224
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3156
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Windows\SysWOW64\explorer.exe" & del "C:\ProgramData\*.dll"" & exit
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:4772
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 5
            5⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:4944
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3224

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\mozglue.dll

      Filesize

      593KB

      MD5

      c8fd9be83bc728cc04beffafc2907fe9

      SHA1

      95ab9f701e0024cedfbd312bcfe4e726744c4f2e

      SHA256

      ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

      SHA512

      fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

    • C:\ProgramData\nss3.dll

      Filesize

      2.0MB

      MD5

      1cc453cdf74f31e4d913ff9c10acdde2

      SHA1

      6e85eae544d6e965f15fa5c39700fa7202f3aafe

      SHA256

      ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

      SHA512

      dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

    • C:\Users\Admin\AppData\Local\Temp\4e9c7460

      Filesize

      907KB

      MD5

      686391155c2fcbec4f384c90b75d4e9d

      SHA1

      09fcb1e8fa3001bf35ff3f5f7d679e10a6e31c8d

      SHA256

      fa2d357641ea2314c0b16f56f1d8c53386b900cc943fb7f20e93cc99d8b8fb04

      SHA512

      eedda57da4d38b143a681964ae560c3e017dab5f834d5320405d6d02b225f73e97ee0a232c732e1a3b8ca107da2504e9659799be62bd49d0a4ac6b5433543e34

    • memory/3128-0-0x0000000000A20000-0x0000000000A21000-memory.dmp

      Filesize

      4KB

    • memory/3128-1-0x0000000000A30000-0x00000000011F1000-memory.dmp

      Filesize

      7.8MB

    • memory/3128-2-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB

    • memory/3128-3-0x00007FFDC03D0000-0x00007FFDC05C5000-memory.dmp

      Filesize

      2.0MB

    • memory/3128-4-0x0000000074AE3000-0x0000000074AE5000-memory.dmp

      Filesize

      8KB

    • memory/3128-5-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB

    • memory/3128-6-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB

    • memory/3156-18-0x00000000005E0000-0x0000000000825000-memory.dmp

      Filesize

      2.3MB

    • memory/3156-16-0x00000000005E0000-0x0000000000825000-memory.dmp

      Filesize

      2.3MB

    • memory/3156-17-0x00007FFDC03D0000-0x00007FFDC05C5000-memory.dmp

      Filesize

      2.0MB

    • memory/3156-21-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/3156-85-0x00000000005E0000-0x0000000000825000-memory.dmp

      Filesize

      2.3MB

    • memory/4224-13-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB

    • memory/4224-15-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB

    • memory/4224-12-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB

    • memory/4224-11-0x00007FFDC03D0000-0x00007FFDC05C5000-memory.dmp

      Filesize

      2.0MB

    • memory/4224-9-0x0000000074AD0000-0x0000000074C4B000-memory.dmp

      Filesize

      1.5MB