Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d653231e9c0865…

MALICIOUS

PDF

33.9 KB Created: 2020-10-08 16:24:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-27
MD5: 64be2418b067363cecb246ef7e95fc20 SHA-1: d21cf2fe3cd305d6ace9a309f95631cd0505ff8b SHA-256: c5d653231e9c086551e691582d80c707d7bc3aff723f8e775553b409a35b823b
142 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://ggtraff.ru/strik?keyword=black+ops+2+mod+menu+xbox+360+download+usb+free In PDF document text
    • http://files.raedelisle.com/uploads/1/3/1/8/131871658/tuwewivemife.pdfIn PDF document text
    • http://zanetab.norwalkjaycees.com/uploads/1/3/1/4/131438345/5665760.pdfIn PDF document text
    • http://files.fitstudiolancaster.com/uploads/1/3/1/4/131406506/d94bca64.pdfIn PDF document text
    • https://site-1036629.mozfiles.com/files/1036629/10355545045.pdfIn PDF document text
    • https://site-1039528.mozfiles.com/files/1039528/43434433099.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/05bdb910-0ac7-469f-a9fc-e1bfdce23ca8/nesuwopivelowemimi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a5dc187f-e3c7-45df-8f73-81d894f93466/sufalofudujofuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc07529b-3ba3-4e68-8a7d-471afdcc588a/96819079219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/2062/6331/files/calendario_escolar_2014-15.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0624/1186/files/california_realtors_lease_agreement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5727/4270/files/alligator_gar_fishing_guides_south_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/9872/5275/files/ralph_from_lord_of_the_flies_leadership_qualities.pdfIn 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://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000042d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42D2 6304 bytes
SHA-256: 5f9132704be86f8f2206facab2127d4ecd515325e9f08b8ff0a65d9d00ed592c
font_01_sfnt_off00005841.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5841 10092 bytes
SHA-256: 20ecb1bba9225ace59a49160fc5aa87b7223656823072ba5ceefdf7227ab25bc