Malicious PDF — malware analysis report

Static analysis result for SHA-256 78d04273757f8cb8…

MALICIOUS

PDF

47.2 KB Created: 2020-08-19 03:49:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 286029e38334e2ff74db3742eb103a96 SHA-1: 8e769640698fd7daebf9184c33484a9d8272d408 SHA-256: 78d04273757f8cb85c6378f6bad6230bcec9b084d312d4831828f37e1a67b1c7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=andersen+400+series+gliding+door+installation+guide'. The document body, though partially obfuscated, suggests a lure related to an 'Andersen 400 series gliding door installation guide'. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to attract search engine traffic and potentially distribute malicious content. The ML classifier strongly flagged this PDF as malicious.

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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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://ttraff.ru/pify?keyword=andersen+400+series+gliding+door+installation+guide In PDF document text
    • http://files.cvdogclub.com/uploads/1/3/0/7/130776167/balulupupes.pdfIn PDF document text
    • http://panopor.getlawncarenow.com/uploads/1/3/1/4/131407089/4322071.pdfIn PDF document text
    • http://files.backwind.ca/uploads/1/3/0/9/130969755/xififipobilir.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/3697/8850/files/date_format_in_report_builder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8172/8151/files/78717997330.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8365/3527/files/hunter_s_thompson_hells_angels.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8271/1201/files/vumomudujefewixifamuvodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9671/1069/files/literature_review_on_social_media_marketing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8748/6358/files/zegalugaxijulirisuguvuleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/3444/7770/files/bowflex_xtl_manuals.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/buvune.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6577/0135/files/rozelitowuzufalogekoxemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0584/5397/files/75685867529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1903/5033/files/95681320268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6702/3259/files/nonasoregonibogilewijaxed.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

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7227 5212 bytes
SHA-256: 3875cce855a51035e4b69488a149c4e660133bedc9a9ad00e847d63f70d993c6
font_01_sfnt_off000083ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83EC 13988 bytes
SHA-256: 3f0b214c67434f24236dc00c77c8b56e961c9729158b02d4484b3ba54e2c885d

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