Malicious PDF — malware analysis report

Static analysis result for SHA-256 69b6d37b97f14121…

MALICIOUS

PDF

36.9 KB Created: 2020-08-24 02:41:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5fdb1e4469deb4c23ebe797e77421bbe SHA-1: 29768a0aef2d9ecfcd6a0efce4a1782d87807d49 SHA-256: 69b6d37b97f14121c64ce375a661e5820d3f9351133f6f0d202d8a3fe994ca2d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, ttraff.cc, which is also flagged as an SEO link farm. The document body, though heavily obfuscated, contains the same redirector URL and references to quiz answers, suggesting a lure to a phishing or scam site. The ML classifier also strongly indicated maliciousness.

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.cc/pify?keyword=intermediate+circulatory+system+quiz+answers In PDF document text
    • http://files.hwange-schools.com/uploads/1/3/0/7/130775032/6999273.pdfIn PDF document text
    • http://files.sjichamber.ca/uploads/1/3/1/1/131164153/sewogijitetifobuti.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/1/0433/2873/3352/files/xofusiluk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/kewonabafejakepuxesur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0631/2093/files/25377587023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2267/2284/files/24740071052.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8568/5153/files/venuzufaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2018/7805/files/brush_lettering_practice_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5878/1590/files/wawakobilutawu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/marketing_mix_of_banking_services.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7318/2625/files/aranjuez_guitar_part.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6721/files/cancer_de_tiroides_sintomas.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 4

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_off000051e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51E8 5392 bytes
SHA-256: 6daf04d252642e0b4f3f9439bc262f9301e41b5facf79d148f14fceb23efe2eb
font_01_sfnt_off00006434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6434 10308 bytes
SHA-256: 4cd9abf5ad3c62a6d8f1704cc6d8cd0e6a4603a4e46c355342d0ea986cfed0be

Open this report in the interactive analyzer, or submit your own file for analysis.