Analysis

  • max time kernel
    71s
  • max time network
    194s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 16:28

General

  • Target

    1bfd69a81f236a121586a100115b6ef1249798a4cca1a6251f087c79fca3ce9a.exe

  • Size

    940KB

  • MD5

    3a38cceb45b5a3176b09c7fe520a5661

  • SHA1

    6fdbc5eb2c78c3c324f3f711e1af5049a55bc8d2

  • SHA256

    1bfd69a81f236a121586a100115b6ef1249798a4cca1a6251f087c79fca3ce9a

  • SHA512

    77376ded1635eebdbfe12c9c789fb0adb12b5cca19da9dc7d59065e60d8c86a709ffd9a6b382d04c94e376d5c0ca16f44613f8f6d2b219db66fb7d6697fd2914

  • SSDEEP

    24576:++5s1mD0fmUFucvysNsrhlBl0gYHX3QlVmmm++HHdhpFpok7U3H85p4VOOKjD3La:1WmD0fmMucZOrhlBl0gYHX3QlVmmm++g

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    longwheelbase2018@yandex.com
  • Password:
    success

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 11 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 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1bfd69a81f236a121586a100115b6ef1249798a4cca1a6251f087c79fca3ce9a.exe
    "C:\Users\Admin\AppData\Local\Temp\1bfd69a81f236a121586a100115b6ef1249798a4cca1a6251f087c79fca3ce9a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Users\Admin\AppData\Local\Temp\1bfd69a81f236a121586a100115b6ef1249798a4cca1a6251f087c79fca3ce9a.exe
      C:\Users\Admin\AppData\Local\Temp\1bfd69a81f236a121586a100115b6ef1249798a4cca1a6251f087c79fca3ce9a.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:1464
      • 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:1136
      • 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:916

    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

    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/916-91-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/916-89-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/916-88-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/916-85-0x0000000000442628-mapping.dmp
    • memory/916-84-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1136-77-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1136-83-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1136-82-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1136-81-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1136-78-0x0000000000411654-mapping.dmp
    • memory/1140-62-0x0000000077B60000-0x0000000077CE0000-memory.dmp
      Filesize

      1.5MB

    • memory/1140-56-0x0000000000240000-0x0000000000248000-memory.dmp
      Filesize

      32KB

    • memory/1140-57-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
      Filesize

      8KB

    • memory/1140-58-0x0000000077980000-0x0000000077B29000-memory.dmp
      Filesize

      1.7MB

    • memory/1140-59-0x0000000077B60000-0x0000000077CE0000-memory.dmp
      Filesize

      1.5MB

    • memory/1140-61-0x0000000000240000-0x0000000000248000-memory.dmp
      Filesize

      32KB

    • memory/1464-73-0x0000000074AF0000-0x000000007509B000-memory.dmp
      Filesize

      5.7MB

    • memory/1464-66-0x0000000000400000-0x0000000000477000-memory.dmp
      Filesize

      476KB

    • memory/1464-64-0x0000000000400000-0x00000000004EA000-memory.dmp
      Filesize

      936KB

    • memory/1464-69-0x0000000002610000-0x00000000026A0000-memory.dmp
      Filesize

      576KB

    • memory/1464-72-0x0000000077980000-0x0000000077B29000-memory.dmp
      Filesize

      1.7MB

    • memory/1464-60-0x00000000004BF22C-mapping.dmp
    • memory/1464-74-0x0000000000220000-0x0000000000228000-memory.dmp
      Filesize

      32KB

    • memory/1464-76-0x0000000074AF0000-0x000000007509B000-memory.dmp
      Filesize

      5.7MB

    • memory/1464-75-0x0000000006885000-0x0000000006896000-memory.dmp
      Filesize

      68KB

    • memory/1464-92-0x0000000006885000-0x0000000006896000-memory.dmp
      Filesize

      68KB