Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:46

General

  • Target

    PO-05nr347.exe

  • Size

    798KB

  • MD5

    67241ed39592f25b9d8d00bfe826affd

  • SHA1

    ac0d76837ffffa4065c7a617ca397d16ed259c70

  • SHA256

    77728dc00d957e7c3a175b58f539ed1ce895595832f3ff527aac52a10b185565

  • SHA512

    e077adeb8ee3eb37a47776df65f954626aa7f6db8d4ac87d30c4505cee87e103f116c90e65eb9a94283e284b866d8d254bee858e17b2e21d3aad36b3fa753ae0

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.com
  • Port:
    587
  • Username:
    fuyutong.ar@accountant.com
  • Password:
    payments00

Signatures

  • HawkEye

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

  • NirSoft MailPassView 6 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 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 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe
      "C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:976
      • 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:1520
      • C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe
        "C:\Users\Admin\AppData\Local\Temp\PO-05nr347.exe" 2 976 7082382
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1556

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Defense Evasion

    Scripting

    1
    T1064

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • memory/976-62-0x0000000074B60000-0x000000007510B000-memory.dmp
      Filesize

      5.7MB

    • memory/976-55-0x000000000051B4A0-mapping.dmp
    • memory/976-59-0x0000000001E50000-0x0000000001ED8000-memory.dmp
      Filesize

      544KB

    • memory/976-58-0x0000000001E50000-0x0000000001ED8000-memory.dmp
      Filesize

      544KB

    • memory/976-68-0x00000000021B5000-0x00000000021C6000-memory.dmp
      Filesize

      68KB

    • memory/1520-70-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1520-71-0x0000000000442628-mapping.dmp
    • memory/1520-74-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1520-75-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1556-56-0x0000000000000000-mapping.dmp
    • memory/1692-63-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1692-64-0x0000000000411654-mapping.dmp
    • memory/1692-67-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1692-69-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2032-57-0x00000000003D0000-0x00000000003D9000-memory.dmp
      Filesize

      36KB

    • memory/2032-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
      Filesize

      8KB