Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd13d93e33befb6…

MALICIOUS

PDF

81.3 KB Created: 2022-10-18 22:01:40 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: 6e1cc8abd677134ad5f95da6bb1f9474 SHA-1: a67eb3e2482ecfdbc483793c0ec294d400ccfd3c SHA-256: ffd13d93e33befb62ee107dd0b75717937b189645c287ccae71f1bcb039a7081
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0010

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/Dns-320 PDF link annotation
    • http://designyourcarpet.com/canon-w6400-manual.xmlIn PDF document text
    • http://giyimkentdestek.com/userfiles/canon-vixia-video-camera-manual.xmlIn PDF document text
    • https://directori.p2pvalue.eu/explore/cbpp-communities/community/datasheet/car-wont-go-reverse-manualIn PDF document text
    • https://labroclub.ru/blog/car-wont-go-gear-manualIn PDF document text
    • https://directori.p2pvalue.eu/explore/cbpp-communities/community/datasheet/car-wont-go-reverse-mIn 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_009_off00007b8f.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00007b8f.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_009_off00007b8f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7B8F 19996 bytes
SHA-256: 8e639af5f37a01c952d7fa5ae521c275babc199f4d44038938bf51c1324a673d
font_01_sfnt_off0000b16b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB16B 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 83219 bytes
SHA-256: 8c73244570463ef1e09ec5407557e619ce8947230b63fbc48e813497b23bc23c
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 83204 bytes
SHA-256: 296d67c1ffda6dcd1afe87f9380d85ff037327618c3e4142c702e5b761bfe469
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 83189 bytes
SHA-256: 8dc668adfe7391fe004337cbe2fac0610174a0eebcdd9fd66a043c8604121d4f
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 83174 bytes
SHA-256: bc9f0ff4b30a5d72a790fc47f4f848df5e83588e38eb4327137cb93db8954f28

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