Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 01:51

General

  • Target

    Telescribe.exe

  • Size

    1.3MB

  • MD5

    ee518fda96d7cb89bad8783aeab7e6fa

  • SHA1

    5dced89b75ece47f8e8c0b19082ed97448f83964

  • SHA256

    cd25f94f8e22e1ca4f4bb2f65a4d904aaa01b57445284b1cf5ea9572873d2b4a

  • SHA512

    b92c661cc02640f4cbc1641b78005d84d176305af07caa92cb26441b0fcb831c31c79db7b5af69d2e331bf5ea1d28f9aa790fc7127cb58fae2224b111275f13b

  • SSDEEP

    24576:d9Q0lIVTRJLpdCW9zTIvwS60x6Hcy/U77VaaG8uosbrDqa1VHWTcSdmWDxbLn/oY:rQ0lsRdpdBTIYS6VDM77YoOrDX1l2xbv

Score
10/10

Malware Config

Signatures

  • Guloader,Cloudeye

    A shellcode based downloader first seen in 2020.

  • Loads dropped DLL 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3388
      • C:\Users\Admin\AppData\Local\Temp\Telescribe.exe
        "C:\Users\Admin\AppData\Local\Temp\Telescribe.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Suspicious use of SetThreadContext
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4728
        • C:\Users\Admin\AppData\Local\Temp\Telescribe.exe
          "C:\Users\Admin\AppData\Local\Temp\Telescribe.exe"
          3⤵
          • Suspicious use of NtCreateThreadExHideFromDebugger
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2828
          • C:\Windows\SysWOW64\write.exe
            "C:\Windows\SysWOW64\write.exe"
            4⤵
            • Suspicious use of SetThreadContext
            • Modifies Internet Explorer settings
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1492
            • C:\Program Files\Mozilla Firefox\Firefox.exe
              "C:\Program Files\Mozilla Firefox\Firefox.exe"
              5⤵
                PID:1872

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\nss4076.tmp\System.dll

        Filesize

        11KB

        MD5

        b8992e497d57001ddf100f9c397fcef5

        SHA1

        e26ddf101a2ec5027975d2909306457c6f61cfbd

        SHA256

        98bcd1dd88642f4dd36a300c76ebb1ddfbbbc5bfc7e3b6d7435dc6d6e030c13b

        SHA512

        8823b1904dccfaf031068102cb1def7958a057f49ff369f0e061f1b4db2090021aa620bb8442a2a6ac9355bb74ee54371dc2599c20dc723755a46ede81533a3c

      • memory/1492-59-0x0000000000CC0000-0x0000000000CFF000-memory.dmp

        Filesize

        252KB

      • memory/1492-57-0x0000000000CC0000-0x0000000000CFF000-memory.dmp

        Filesize

        252KB

      • memory/1872-67-0x000001C443680000-0x000001C44372F000-memory.dmp

        Filesize

        700KB

      • memory/2828-35-0x0000000000400000-0x0000000001654000-memory.dmp

        Filesize

        18.3MB

      • memory/2828-36-0x0000000001660000-0x0000000003681000-memory.dmp

        Filesize

        32.1MB

      • memory/2828-50-0x0000000000400000-0x0000000001654000-memory.dmp

        Filesize

        18.3MB

      • memory/2828-52-0x0000000000400000-0x0000000001654000-memory.dmp

        Filesize

        18.3MB

      • memory/2828-53-0x0000000001660000-0x0000000003681000-memory.dmp

        Filesize

        32.1MB

      • memory/2828-56-0x0000000000400000-0x0000000001654000-memory.dmp

        Filesize

        18.3MB

      • memory/2828-58-0x0000000000400000-0x0000000001654000-memory.dmp

        Filesize

        18.3MB

      • memory/3388-60-0x00000000028D0000-0x000000000299B000-memory.dmp

        Filesize

        812KB

      • memory/4728-37-0x0000000004B40000-0x0000000006B61000-memory.dmp

        Filesize

        32.1MB

      • memory/4728-51-0x0000000004B40000-0x0000000006B61000-memory.dmp

        Filesize

        32.1MB

      • memory/4728-34-0x0000000010004000-0x0000000010005000-memory.dmp

        Filesize

        4KB

      • memory/4728-33-0x00000000771D1000-0x00000000772F1000-memory.dmp

        Filesize

        1.1MB

      • memory/4728-32-0x0000000004B40000-0x0000000006B61000-memory.dmp

        Filesize

        32.1MB