Analysis

  • max time kernel
    150s
  • max time network
    162s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12/02/2023, 22:20

General

  • Target

    6f9d7b5e7e0638d304ef8d8e855847618cd9261412676254cfa3a46205a5765e.exe

  • Size

    3.6MB

  • MD5

    ee23f221e245cf87527c376ecb19d0a1

  • SHA1

    7910d20eb477a15d3ffc321de4f337acf281755b

  • SHA256

    6f9d7b5e7e0638d304ef8d8e855847618cd9261412676254cfa3a46205a5765e

  • SHA512

    b67d9e321a4f98ba2508b2091fb04c1b5ac40aae2ab8af5f7f50ce10f33758cc1609cce3d6137a84ed65423c971e84b2509fbbd3d6111003dbf1d404de694c0d

  • SSDEEP

    98304:32eKoeC3xP4Bmss/MTELYpiZKrs+vvM1:3rK9sP5l/FLYsgrs+vQ

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

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

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

  • Checks processor information in registry 2 TTPs 27 IoCs

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

  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f9d7b5e7e0638d304ef8d8e855847618cd9261412676254cfa3a46205a5765e.exe
    "C:\Users\Admin\AppData\Local\Temp\6f9d7b5e7e0638d304ef8d8e855847618cd9261412676254cfa3a46205a5765e.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2728
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\system32\rundll32.exe C:\Users\Admin\AppData\Local\Temp\Eoufdihy.dll,start
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Accesses Microsoft Outlook accounts
      • Accesses Microsoft Outlook profiles
      • Suspicious use of SetThreadContext
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:352
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Windows\system32\shell32.dll",#61 15721
        3⤵
        • Modifies registry class
        • Suspicious use of FindShellTrayWindow
        PID:1328
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /End /tn \Microsoft\Windows\Wininet\CacheTask
        3⤵
          PID:4292
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks /Run /tn \Microsoft\Windows\Wininet\CacheTask
          3⤵
            PID:4412
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
        1⤵
          PID:5036

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Eoufdihy.dll

          Filesize

          4.2MB

          MD5

          85ce367845ada4e42fb3a3a19f696fc0

          SHA1

          ce225b395af88a0bdb5af5eba836b73c10d7ed1d

          SHA256

          347e75e5d347f4858f9612f18590d0a67ff8af913006f1d356f411d125780245

          SHA512

          2ad03ddb394d663f9e3d722a81e5b47a55bb40e07f3c785f99c03ae65fb24b520299b777432f3196cd964bd6db285bcfdbde324a1b454538b51a381cd2c9e53c

        • \Users\Admin\AppData\Local\Temp\Eoufdihy.dll

          Filesize

          4.2MB

          MD5

          85ce367845ada4e42fb3a3a19f696fc0

          SHA1

          ce225b395af88a0bdb5af5eba836b73c10d7ed1d

          SHA256

          347e75e5d347f4858f9612f18590d0a67ff8af913006f1d356f411d125780245

          SHA512

          2ad03ddb394d663f9e3d722a81e5b47a55bb40e07f3c785f99c03ae65fb24b520299b777432f3196cd964bd6db285bcfdbde324a1b454538b51a381cd2c9e53c

        • \Users\Admin\AppData\Local\Temp\Eoufdihy.dll

          Filesize

          4.2MB

          MD5

          85ce367845ada4e42fb3a3a19f696fc0

          SHA1

          ce225b395af88a0bdb5af5eba836b73c10d7ed1d

          SHA256

          347e75e5d347f4858f9612f18590d0a67ff8af913006f1d356f411d125780245

          SHA512

          2ad03ddb394d663f9e3d722a81e5b47a55bb40e07f3c785f99c03ae65fb24b520299b777432f3196cd964bd6db285bcfdbde324a1b454538b51a381cd2c9e53c

        • memory/352-183-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-181-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-272-0x00000000054B0000-0x0000000006002000-memory.dmp

          Filesize

          11.3MB

        • memory/352-289-0x00000000054B0000-0x0000000006002000-memory.dmp

          Filesize

          11.3MB

        • memory/352-170-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-171-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-186-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-185-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-184-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-182-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-172-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-180-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-179-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-178-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-176-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-175-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/352-174-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/1328-291-0x000001E474190000-0x000001E474437000-memory.dmp

          Filesize

          2.7MB

        • memory/1328-290-0x0000000000EC0000-0x0000000001155000-memory.dmp

          Filesize

          2.6MB

        • memory/2728-134-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-140-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-142-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-143-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-144-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-145-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-146-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-147-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-149-0x0000000002810000-0x0000000002B93000-memory.dmp

          Filesize

          3.5MB

        • memory/2728-148-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-151-0x0000000002BA0000-0x000000000307E000-memory.dmp

          Filesize

          4.9MB

        • memory/2728-150-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-153-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-152-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-155-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-154-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-156-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-157-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-158-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-159-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-160-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-161-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-163-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-162-0x0000000000400000-0x0000000000AF4000-memory.dmp

          Filesize

          7.0MB

        • memory/2728-164-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-165-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-166-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-167-0x0000000002BA0000-0x000000000307E000-memory.dmp

          Filesize

          4.9MB

        • memory/2728-168-0x0000000000400000-0x0000000000AF4000-memory.dmp

          Filesize

          7.0MB

        • memory/2728-141-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-138-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-137-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-136-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-173-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-115-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-135-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-133-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-132-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-131-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-177-0x0000000000400000-0x0000000000AF4000-memory.dmp

          Filesize

          7.0MB

        • memory/2728-130-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-129-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-128-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-127-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-126-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-125-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-124-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-123-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-122-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-121-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-120-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-119-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-118-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-117-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB

        • memory/2728-116-0x0000000077D30000-0x0000000077EBE000-memory.dmp

          Filesize

          1.6MB