Analysis

  • max time kernel
    97s
  • max time network
    125s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-07-2022 04:14

General

  • Target

    6bc07d70aab4031f112773f4eef8049540106b00ce1322a8313f776203c7c3af.exe

  • Size

    676KB

  • MD5

    1f20e0da472a066443b9b8b5a16d8abb

  • SHA1

    293b3212ceaf05ac4f4b49778863fbbe3879fb0d

  • SHA256

    6bc07d70aab4031f112773f4eef8049540106b00ce1322a8313f776203c7c3af

  • SHA512

    3ed1d6bd87680430932d1e9bff2f3c9756e2bb1ab6479eaa95d7447c4e6583a5bc72d14fb8ad3672b416feda8591f3df0e2554153465b5773264828da3a50560

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bellahomedecor.com.br
  • Port:
    587
  • Username:
    contato@bellahomedecor.com.br
  • Password:
    contato

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6bc07d70aab4031f112773f4eef8049540106b00ce1322a8313f776203c7c3af.exe
    "C:\Users\Admin\AppData\Local\Temp\6bc07d70aab4031f112773f4eef8049540106b00ce1322a8313f776203c7c3af.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\Users\Admin\AppData\Local\Temp\6bc07d70aab4031f112773f4eef8049540106b00ce1322a8313f776203c7c3af.exe
      C:\Users\Admin\AppData\Local\Temp\6bc07d70aab4031f112773f4eef8049540106b00ce1322a8313f776203c7c3af.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4460
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:924
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
        3⤵
          PID:2648
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 1728
          3⤵
          • Drops file in Windows directory
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:2208

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Scripting

    1
    T1064

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
      Filesize

      3KB

      MD5

      f94dc819ca773f1e3cb27abbc9e7fa27

      SHA1

      9a7700efadc5ea09ab288544ef1e3cd876255086

      SHA256

      a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

      SHA512

      72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

    • memory/924-148-0x0000000000000000-mapping.dmp
    • memory/924-152-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/924-151-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/924-149-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2208-164-0x0000000000000000-mapping.dmp
    • memory/2648-160-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/2648-157-0x0000000000000000-mapping.dmp
    • memory/2648-163-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/2648-161-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/2648-158-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/3044-135-0x00000000024C0000-0x00000000024C7000-memory.dmp
      Filesize

      28KB

    • memory/3044-132-0x00000000024C0000-0x00000000024C7000-memory.dmp
      Filesize

      28KB

    • memory/3044-136-0x0000000077C60000-0x0000000077E03000-memory.dmp
      Filesize

      1.6MB

    • memory/3044-134-0x00007FFB8CFB0000-0x00007FFB8D1A5000-memory.dmp
      Filesize

      2.0MB

    • memory/4460-137-0x0000000000400000-0x00000000004A9000-memory.dmp
      Filesize

      676KB

    • memory/4460-147-0x00000000752D0000-0x0000000075881000-memory.dmp
      Filesize

      5.7MB

    • memory/4460-155-0x0000000077C60000-0x0000000077E03000-memory.dmp
      Filesize

      1.6MB

    • memory/4460-156-0x00000000752D0000-0x0000000075881000-memory.dmp
      Filesize

      5.7MB

    • memory/4460-153-0x00000000004C0000-0x00000000004C7000-memory.dmp
      Filesize

      28KB

    • memory/4460-142-0x0000000002150000-0x00000000021E6000-memory.dmp
      Filesize

      600KB

    • memory/4460-139-0x0000000000400000-0x000000000047B000-memory.dmp
      Filesize

      492KB

    • memory/4460-154-0x00007FFB8CFB0000-0x00007FFB8D1A5000-memory.dmp
      Filesize

      2.0MB

    • memory/4460-146-0x0000000077C60000-0x0000000077E03000-memory.dmp
      Filesize

      1.6MB

    • memory/4460-145-0x00007FFB8CFB0000-0x00007FFB8D1A5000-memory.dmp
      Filesize

      2.0MB

    • memory/4460-133-0x0000000000000000-mapping.dmp
    • memory/4460-165-0x00007FFB8CFB0000-0x00007FFB8D1A5000-memory.dmp
      Filesize

      2.0MB

    • memory/4460-166-0x0000000077C60000-0x0000000077E03000-memory.dmp
      Filesize

      1.6MB

    • memory/4460-167-0x00000000752D0000-0x0000000075881000-memory.dmp
      Filesize

      5.7MB