Malicious PDF — malware analysis report

Static analysis result for SHA-256 71036bd179efc26c…

MALICIOUS

PDF

133.8 KB Created: 2022-05-02 20:24:22 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-06
MD5: 2f04dd77e218fbd50a85567774e5ce63 SHA-1: e10cf6750bb69ff4d3e4eb74ea40a9207f95584a SHA-256: 71036bd179efc26c4402d0ba830caf62c12bb1ce750b33eaf7f4b530aab49a52
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0013

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/boss PDF link annotation
    • http://topukrainianhotels.com/userfiles/contador-manual-madrid.xmlIn PDF document text
    • http://www.zulassungsservice4you.de/bilder/contador-manual-rio-de-janeiro.xmlIn PDF document text
    • http://superbia.lgbt/flotaganis/1647777669In PDF document text
    • http://www.decor-ada.com/images/caribbean-glow-gas-fire-manual.pdfIn PDF document text
    • http://demenagementlandry.com/images/caricature-manual.pdfIn PDF document text
    • http://dag.ru/realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1626ed02b1c086---bosch-nexxt-dlx-series-dryer-manual.pdfIn PDF document text
    • http://gbb.global/blog/3m-942-bookcheck-manualIn 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_off00006dd8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_008_off00006dd8.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_off00006dd8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6DD8 19996 bytes
SHA-256: 8e639af5f37a01c952d7fa5ae521c275babc199f4d44038938bf51c1324a673d
font_01_sfnt_off0000a3b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3B4 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 136973 bytes
SHA-256: 3deec7bf41e7039bcd101f49eb370015b6ea74587ebfe0d0416f7bce40fda4a3
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 136958 bytes
SHA-256: 1cc8e6a665d387a804324418237f63059428b79d14a2b5d33eff0b0713e247a4
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 136943 bytes
SHA-256: d7d25f05e865c9a250c116f89ebd83646f21513057376270f70b8ac2d4fd42d4
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 136928 bytes
SHA-256: aa174a057e3eaef425bef35021620d5b2f822485b4bf5ed5940d0ae36b3e5f07

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