Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ff5c8eeccdfc97a…

MALICIOUS

PDF

91.5 KB Created: 2022-10-13 21:37:46 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: 1c82db145b5ff794b1da00919da312bd SHA-1: 08f51c3182b5215889f75d4cf6750b1a8d128738 SHA-256: 0ff5c8eeccdfc97a02444d49e2eb82a0396e52e634f3e97ea7fe17a18f226a93
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0012

Heuristics 4

  • Secondary embedded PDF body has suspicious static findings critical POLYGLOT_CHILD_PDF_STATIC_TRIAGE
    A valid PDF body was found at a nonzero offset inside another container and its carved contents matched PDF exploit or lure heuristics. This catches polyglots where the top-level magic routes to ZIP/OLE while a PDF reader or downstream parser opens the hidden PDF payload.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://srwt.ru/mpdf/Dish PDF link annotation
    • http://elrey-uslugi.ru/media/canon-580ex-flash-manual-pdf.xmlIn PDF document text
    • http://davidfoleyinc.com/userfiles/canon-580-ex-service-manual.xmlIn PDF document text
    • http://gbb.global/blog/boss-drsample-sp-202-user-manualIn PDF document text
    • https://www.online-distance-learning-education.com/images/Disadvantages-Of-Manual-Accounting-Systems.pdfIn PDF document text
    • http://darrellpugsley.com/images/Disadvantages-Of-Manual-Accounting.pdfIn PDF document text
    • https://ayurvedia.ch/boss-drsample-sp-202-user-manualIn PDF document text
    • https://www.online-distance-learning-education.com/images/Disadvantages-Of-Manual-Accounting-SIn PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (stream_008_off000061e9.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_008_off000061e9.bin)
🗂 Part of campaign: secureserver.net 1471 samples

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off000061e9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x61E9 19996 bytes
SHA-256: 8e639af5f37a01c952d7fa5ae521c275babc199f4d44038938bf51c1324a673d
font_01_sfnt_off000097c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97C5 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 93710 bytes
SHA-256: 484a885d352ac83d45fba55efe50dc03d629cc03b0d81170eb34cc553937af56
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 93695 bytes
SHA-256: a54e7fae29e13960330d8fa89cbc6088ad39f98cece665199552630369e13008
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 93680 bytes
SHA-256: ee3e795959ddbc33934612444d1283257b170370a23d2a8726eb2c52eafa1d2c
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 93665 bytes
SHA-256: e96e87adcebe35d52df97c5592fbe972d11da4b9161eb85adb36ec79b73ad385

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