Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d284628eb980f39…

MALICIOUS

PDF

164.2 KB Created: 2020-12-09 00:09:32 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: 4b7534618948572a835452d5c2416a0d SHA-1: f183e8bd3b4e24ca5c0a6421adc5035f42894acd SHA-256: 7d284628eb980f39c456076ece29b5bf5c3bd97630745f8e4c96ab64fed7df3d
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0004

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/pdf/canon PDF link annotation
    • http://hyosangjo.com/userfiles/20201207103356.xmlIn PDF document text
    • http://tour-paris-guide.com/cite_imgs/jeep-wrangler-haynes-repair-manual.xmlIn 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_off00006534.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00006534.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_off00006534.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x6534 19780 bytes
SHA-256: 4fa1e1f62893db1504b694ba157ca733dbc9a64fe6775bec7c5c9e8d41f3a745
font_01_sfnt_off00009a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A88 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 168167 bytes
SHA-256: 263cf384532b8c4284c9d6e1479b0e5ff7e89c013449998cf017636ca9e56b8e
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 168152 bytes
SHA-256: 14189425809d41ae745d67cfc476fcd4c1b06d5e0d9216292906135b2ae6e4bd
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 168137 bytes
SHA-256: d981d9d3dd81bf6fa87a830f4ec0a3b24ac52d119e7dc1845d359f7f686fd631
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 168122 bytes
SHA-256: 555e758904e089e58bcea5e7c5d53f90ee6174a1e240735cccf5bde052a16703

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