Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a2ed38cdff17abd…

MALICIOUS

PDF

36.1 KB Created: 2020-08-16 11:01:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fcb23c75f38a417d44dc93aa4e3f43a SHA-1: fc21583f2a4cb97e6f19f46ed98016bf703f9bf9 SHA-256: 8a2ed38cdff17abdc101d503c7765c81ccdd6ce64e1a8d1dfea2664c3cc80131
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a coupon matchups spreadsheet. This indicates a phishing or social engineering attempt to direct users to malicious infrastructure. The document also contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of SEO link farm techniques used to manipulate search engine rankings or distribute malicious content.

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=harris+teeter+coupon+matchups+spreadsheet In PDF document text
    • http://xedunox.zone3explorers.com/uploads/1/3/2/6/132696398/7386148.pdfIn PDF document text
    • http://files.mrsbrownsmusicroom.com/uploads/1/3/1/8/131856339/xajozojili-mulovunebazadu-jikukinibo.pdfIn PDF document text
    • http://files.goldenorchidphotography.org/uploads/1/3/1/3/131381675/jaburit.pdfIn PDF document text
    • http://files.protectberlinpond.org/uploads/1/3/0/8/130814124/2683748.pdfIn PDF document text
    • http://betak.thadwester.com/uploads/1/3/1/4/131438177/79480ba99.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/1/0433/6769/4490/files/84821124104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/1210/6912/files/abc_biology_book_class_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nipexaledova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9912/0033/files/58429981363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0549/9801/files/mokufukemetubawujaleriduw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8589/7627/files/kenesavafejakulinetifufax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0458/3318/files/xolozuradarinafopoguvuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0868/7269/files/power_system_engineering_book_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9432/4888/files/66745420520.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 8

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_off00004e75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E75 5244 bytes
SHA-256: 8c94f8d928872d6095e3fe9eaad7e9ad27dfc838f8600b7d8fbc447df11095f7
font_01_sfnt_off0000600c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600C 10440 bytes
SHA-256: d6b90a5772214e5ec033df97fb2a78e60324057362edddebd53e477828f508bd

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