Analysis

  • max time kernel
    4294195s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    10/03/2022, 04:30

General

  • Target

    663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe

  • Size

    520KB

  • MD5

    226c62aab7bab3aca802a22b261f844f

  • SHA1

    f00002fd6cea1c847d6df67b44846092c25003c5

  • SHA256

    663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394

  • SHA512

    1ef359486245bd53b93f91fe34709d7398682123ee373c20439ba42bf5511850d29f418743b9a9992511d6919220d3e2d8f68be5ebec7127073fd31ff10802fc

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.molinense.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    jhl88899

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 5 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 7 IoCs
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • 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.

  • Suspicious behavior: EnumeratesProcesses 1 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\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe
    "C:\Users\Admin\AppData\Local\Temp\663d8c19b6d0c03bb3712ffcedac0462959a2575747ab77404202e7aaa0fd394.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1692
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1792
      • 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:1764
      • 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:1328

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1328-74-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1328-71-0x0000000000400000-0x0000000000458000-memory.dmp

            Filesize

            352KB

          • memory/1692-54-0x0000000076731000-0x0000000076733000-memory.dmp

            Filesize

            8KB

          • memory/1692-56-0x00000000022E0000-0x00000000022E1000-memory.dmp

            Filesize

            4KB

          • memory/1692-55-0x0000000074D20000-0x00000000752CB000-memory.dmp

            Filesize

            5.7MB

          • memory/1692-57-0x0000000074D20000-0x00000000752CB000-memory.dmp

            Filesize

            5.7MB

          • memory/1764-67-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1764-70-0x0000000000400000-0x000000000041B000-memory.dmp

            Filesize

            108KB

          • memory/1792-66-0x0000000000406000-0x0000000000407000-memory.dmp

            Filesize

            4KB

          • memory/1792-65-0x0000000074D20000-0x00000000752CB000-memory.dmp

            Filesize

            5.7MB

          • memory/1792-64-0x00000000003F0000-0x00000000003F1000-memory.dmp

            Filesize

            4KB

          • memory/1792-63-0x0000000074D20000-0x00000000752CB000-memory.dmp

            Filesize

            5.7MB