Resubmissions

15-05-2024 11:58

240515-n495nagc6y 10

15-05-2024 11:54

240515-n3d1tsgd33 4

15-05-2024 09:22

240515-lb8p1sba32 10

Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    15-05-2024 09:22

General

  • Target

    4423890.rar

  • Size

    11.2MB

  • MD5

    ff7553a8d62ba75491119628aa7ede6e

  • SHA1

    105b16f65c61570fd9c6ff2077597ba626026cda

  • SHA256

    58fb41c622cfccae8febc06e0c04f25bdb613a5b260ae6f404e9d0eda5ea86ab

  • SHA512

    ee01b5273fa7fb49eb8f55b995174bb869ebe77854427c4691e8980f5c2b49eef66a9e3fc8ecb6dd2388f390423318653b3573d1002af3124c70a42ed5815c22

  • SSDEEP

    196608:f9VizBum/MJuS5PuZBv5z7/AGUnfbhI7epRSv6EjBGu0wcDGIuPJGopuS5R:X4BF/GuS5PuZLQGOfeavSNjgu0tiI1o/

Malware Config

Signatures

  • DarkTrack

    DarkTrack is a remote administration tool written in delphi.

  • DarkTrack payload 4 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Themida packer 5 IoCs

    Detects Themida, an advanced Windows software protection system.

  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 39 IoCs
  • Suspicious use of SendNotifyMessage 37 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\4423890.rar
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1732
    • C:\Program Files\7-Zip\7zFM.exe
      "C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\4423890.rar"
      2⤵
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2728
  • C:\Users\Admin\Desktop\Predstavlenie № 6-51-2024 .docx.exe
    "C:\Users\Admin\Desktop\Predstavlenie № 6-51-2024 .docx.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2356
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\zapros.docx"
      2⤵
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2488
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
          PID:1368
      • C:\Users\Admin\AppData\Local\Temp\rupedoras.exe
        C:\Users\Admin\AppData\Local\Temp\rupedoras.exe
        2⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2348
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
          3⤵
          • Suspicious behavior: GetForegroundWindowSpam
          PID:2124
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2812

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\rupedoras.exe

      Filesize

      11.2MB

      MD5

      d483c1a9718cf5d880b3cce5d6ff7423

      SHA1

      72be5e949dd6923a43e7eaab1811baea4bc4b644

      SHA256

      8df595a1528a09fdcfe237a7dd1009d1380a886875747d1b145925968463f7bd

      SHA512

      370e220b3bdb617a12479db075ee26741075306ce7a72237115b2d79c452baadf931ccf3b422e9d0ef1eb0138316c3233f3ecd27074f3e797dc20ee974eb6fe4

    • C:\Users\Admin\AppData\Local\Temp\zapros.docx

      Filesize

      11KB

      MD5

      9871272af8b06b484f0529c10350a910

      SHA1

      707979b027f371989fb71e36795b652a2d466592

      SHA256

      c2a256547433bec8d7afbed923f453eb2df978f18ed498e82bb2b244b126a9f3

      SHA512

      5bd60de706ed3ef717177b08fa69ebc8117fe52bf53e896b91d102430b4b976b136f2df75fe4d1cb9cf16f5e73052e030e364bdf212148b1471e9c2b99f76a4c

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      6158a5651dbc0fce3e27232e90226ed4

      SHA1

      9ab2bc42d552be5846ba751de94083119f483f71

      SHA256

      10167047239611ecefe7096f1507dc1a0e290072e3ca0f2ce1887e54a685d15b

      SHA512

      bf10ebf6985316d7b638389ae9c695f50c1151b9e8fa48561b0d3a6eab7ab2f69e8e76a9affad252d87af04e5970803a73c9aa85f21147c1ddf63d5a18dcedee

    • C:\Users\Admin\Desktop\Predstavlenie № 6-51-2024 .docx.exe

      Filesize

      11.3MB

      MD5

      45ae0c08a1fb98fe77e4cd127b79ef7d

      SHA1

      12c7847fc2567ee9e6c0010f5c311753c017fa48

      SHA256

      bb8165b8f60818061d12cac775d8d41436b16c9b40e01071fca7fb96f6ef435e

      SHA512

      21cc13630fc1fe3bea4d45e356e63d4e94db7357040793b4d091ef75b2cf05191037380c493b944d1ecf748b9bd9935f1f91ba0c8654c57dbbe4530ab4fff4cd

    • memory/2124-70-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-73-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-75-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-74-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-72-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-71-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-58-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-60-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-62-0x0000000000400000-0x00000000004A8000-memory.dmp

      Filesize

      672KB

    • memory/2124-64-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2348-53-0x0000000000400000-0x0000000001F60000-memory.dmp

      Filesize

      27.4MB

    • memory/2348-56-0x0000000006CF0000-0x0000000006D0A000-memory.dmp

      Filesize

      104KB

    • memory/2348-78-0x0000000000400000-0x0000000001F60000-memory.dmp

      Filesize

      27.4MB

    • memory/2348-44-0x0000000000400000-0x0000000001F60000-memory.dmp

      Filesize

      27.4MB

    • memory/2348-52-0x0000000000400000-0x0000000001F60000-memory.dmp

      Filesize

      27.4MB

    • memory/2348-54-0x00000000021A0000-0x00000000021E4000-memory.dmp

      Filesize

      272KB

    • memory/2348-57-0x0000000006150000-0x0000000006156000-memory.dmp

      Filesize

      24KB

    • memory/2356-43-0x0000000003740000-0x00000000052A0000-memory.dmp

      Filesize

      27.4MB

    • memory/2356-42-0x0000000003740000-0x00000000052A0000-memory.dmp

      Filesize

      27.4MB

    • memory/2488-96-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2488-30-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2812-68-0x0000000140000000-0x00000001405E8000-memory.dmp

      Filesize

      5.9MB

    • memory/2812-67-0x0000000140000000-0x00000001405E8000-memory.dmp

      Filesize

      5.9MB