Analysis

  • max time kernel
    152s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    22/02/2022, 19:42

General

  • Target

    0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe

  • Size

    1.1MB

  • MD5

    83dfaa37ff9d3836afcb41d3c1d0c975

  • SHA1

    32ab69b9e9744fcd096b4bf9286cd17b9b5a08df

  • SHA256

    0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e

  • SHA512

    2a90c6dad473c4d3eb48227c580e28abb3c77d4bcaa9833fee29e03a00d61d90e12c7bdde60fdcc5ed843243be2f1a9088e966992108e4197b8ddf03dd698b90

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtps.bol.com.br
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Michelrocha1@

Signatures

  • HawkEye

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

  • NirSoft MailPassView 2 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 2 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 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 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe
    "C:\Users\Admin\AppData\Local\Temp\0e168e47f44f0bf38ece8f53b875a8a3e049bf176d62871d1e0f8adc5400c26e.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Executes dropped EXE
      • Deletes itself
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1256
      • 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:1692
      • 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:1648

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/848-56-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

            Filesize

            4KB

          • memory/848-55-0x00000000751B1000-0x00000000751B3000-memory.dmp

            Filesize

            8KB

          • memory/848-54-0x00000000740C1000-0x00000000740C2000-memory.dmp

            Filesize

            4KB

          • memory/848-57-0x00000000740C2000-0x00000000740C4000-memory.dmp

            Filesize

            8KB

          • memory/848-58-0x0000000000AD1000-0x0000000000AD2000-memory.dmp

            Filesize

            4KB

          • memory/1256-64-0x0000000000B50000-0x0000000000B51000-memory.dmp

            Filesize

            4KB

          • memory/1256-66-0x0000000000B51000-0x0000000000B52000-memory.dmp

            Filesize

            4KB

          • memory/1256-65-0x00000000740C2000-0x00000000740C4000-memory.dmp

            Filesize

            8KB

          • memory/1256-70-0x0000000000B67000-0x0000000000B68000-memory.dmp

            Filesize

            4KB

          • memory/1256-71-0x0000000000B56000-0x0000000000B67000-memory.dmp

            Filesize

            68KB

          • memory/1256-63-0x00000000740C1000-0x00000000740C2000-memory.dmp

            Filesize

            4KB

          • memory/1648-73-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1648-75-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1692-68-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1692-72-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB