Analysis

  • max time kernel
    156s
  • max time network
    165s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    05/02/2022, 17:55

General

  • Target
    Payment relief form.exe
  • Size 378KB
  • Sample220205-whsbqaebej
  • SHA256 9e2a002527bd520f50a4844c8381e89a09e3489a239766120d63db503eb97910
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    mail.baconplumbing.co.za

  • Port

    587

  • Password

    Andrew@1652

Signatures

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

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

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

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

  • Modifies data under HKEY_USERS 47 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment relief form.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment relief form.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3808
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1676
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1444
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3708

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1676-140-0x00000000003A0000-0x00000000003C2000-memory.dmp

        memory/1676-143-0x00000000063D0000-0x00000000063DA000-memory.dmp

        memory/1676-142-0x00000000050E0000-0x000000000517C000-memory.dmp

        memory/1676-141-0x0000000000D30000-0x0000000000D63000-memory.dmp

        memory/3808-133-0x0000000005B60000-0x0000000005D22000-memory.dmp

        memory/3808-135-0x0000000005880000-0x00000000058A2000-memory.dmp

        memory/3808-136-0x00000000062E0000-0x0000000006884000-memory.dmp

        memory/3808-137-0x0000000005D30000-0x00000000062D4000-memory.dmp

        memory/3808-138-0x0000000005E50000-0x0000000005E94000-memory.dmp

        memory/3808-134-0x00000000057A0000-0x00000000057C2000-memory.dmp

        memory/3808-130-0x0000000000E20000-0x0000000000E84000-memory.dmp

        memory/3808-132-0x00000000058F0000-0x0000000005982000-memory.dmp

        memory/3808-131-0x00000000057E0000-0x0000000005846000-memory.dmp