Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e40e1f42b193242…

MALICIOUS

PDF

119.9 KB Created: 2022-03-31 09:52:59 +03:00 Authoring application: mPDF 7.1.0 First seen: 2023-12-11
MD5: 5aaf261609c33a891d82930915c29fe1 SHA-1: 69d1b3a3701cbd3593d54695b59c1e7a65d90fed SHA-256: 2e40e1f42b19324209f69f8ec51c6e2ee4c058e2b72d523e426faa289c1707dc
72 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0011

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/91 PDF link annotation
    • http://cstransit.ru/userfiles/candy-automatic-washing-machine-manual.xmlIn PDF document text
    • http://djarkitek.com/temp/vinney/HTML/userfiles/candy-c-4400-service-manual.xmlIn PDF document text
    • https://labroclub.ru/blog/3m-mini-driver-manualIn PDF document text
    • http://floreswindows.com/images/bravo-3-service-manual-pdf.pdfIn PDF document text
    • http://17eldonsquare.com/images/bravo-4051-manual.pdfIn PDF document text
    • http://www.diamondsinthemaking.com/content/3m-mini-driver-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_009_off00007a70.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_009_off00007a70.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_off00007a70.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x7A70 19996 bytes
SHA-256: 8e639af5f37a01c952d7fa5ae521c275babc199f4d44038938bf51c1324a673d
font_01_sfnt_off0000b04c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB04C 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8
polyglot_child_pdf_off0000000f.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0xF 122775 bytes
SHA-256: 863a260210e8507e9f8879ad082c95cd60bcbf5b76cc2529a2a9652ed826c30b
polyglot_child_pdf_off0000001e.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x1E 122760 bytes
SHA-256: d9abb587bf6028e1ac322626c8079306bf5282ae228ed0152aea7dcefc2165b0
polyglot_child_pdf_off0000002d.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x2D 122745 bytes
SHA-256: c0b356dc69288e830dfa449c66750847b0981946f7156d7b6d1b6d68202faf51
polyglot_child_pdf_off0000003c.pdf polyglot-child-pdf Secondary PDF body inside pdf container at offset 0x3C 122730 bytes
SHA-256: b63686a9c2259714179e767767d51051d458cfc6d4801ef6f10f4b08aee6561d

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