Malicious PDF — malware analysis report

Static analysis result for SHA-256 5116f8fa05dee28b…

MALICIOUS

PDF

288.6 KB Created: 2022-05-27 16:46:28 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: 27358a4bd97b40694d289f2519a7f717 SHA-1: a0ef8a34f7340fabec777176ce30d7bcca80e4a4 SHA-256: 5116f8fa05dee28b871c39b3649aecfdc9bef23ddbec9f157c503f373b31bb38
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0014

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://filesoftclub.club/fc/03 PDF link annotation
    • http://ivankotov.ru/img/lib/electrolux-ergorapido-manual.xmlIn PDF document text
    • http://www.harasim.cz/uploaded/electrolux-ergorapido-user-manual.xmlIn PDF document text
    • http://www.diamondsinthemaking.com/content/bose-music-center-5-manualIn PDF document text
    • http://arteratech.com/images/canon-digital-ixus-120-is-manual.pdfIn PDF document text
    • http://artisanatlucratif.com/images/canon-digital-camera-manual-download.pdfIn PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16274b1b143eba---brother-fax-machines-user-manual.pdfIn PDF document text
    • https://www.informaquiz.it/petrgenis1604790/status/flotaganis19052022-1135In PDF document text
    • http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/16274b1b143eba---bIn 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_off00004f64.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_008_off00004f64.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_off00004f64.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F64 19836 bytes
SHA-256: ad6d801f7554b4de8183daf312cecf2a3a65662328777b95eb4eaac8815799eb
font_01_sfnt_off000084e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84E1 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 295507 bytes
SHA-256: e77dc805c6bd5467f8f117793b489ef4de9c36c6fad7a93fab49face933fd7b7
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 295492 bytes
SHA-256: 6198f79af04a48cb11d264d79f03db5f504e303e8131b355d58256d0da7d0db9
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 295477 bytes
SHA-256: a291ca6c07c7618cbd1adcdf0aaa26c55aa0130f371a8bece2270fb9f18b59e0
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 295462 bytes
SHA-256: 39511ef21b9baa753035e52268a080cd519c09360ace1da78213c20792b1cc97

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