Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fa68d48530b8f1e…

MALICIOUS

PDF

67.9 KB Created: 2020-08-09 02:37:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce3ce660854954a02c3a3ddb9aa82737 SHA-1: a684707b78e3131b76a0082328ea8d6fcbbe9d62 SHA-256: 7fa68d48530b8f1eb59a7c5499973711a80acea122551de5eb422f0fc63f179c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm designed to appear as search results for free book downloads, redirecting to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=software+architecture+and+design+illuminated+pdf+free+download, which is part of a known malicious redirector infrastructure. The document body also contains multiple links to Shopify domains, likely part of the link farm, and other unknown domains, all aiming to obscure the malicious redirector.

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=software+architecture+and+design+illuminated+pdf+free+download In PDF document text
    • http://files.martin-hickman.com/uploads/1/3/0/8/130874539/pigubaxubogax_surosaror_mamowu_daxifafo.pdfIn PDF document text
    • http://files.anchoragesepticservice.com/uploads/1/3/1/4/131453406/4aaa86ca855e.pdfIn PDF document text
    • http://files.childsafefence.com/uploads/1/3/0/8/130874598/9037029.pdfIn PDF document text
    • http://files.roamingcic.com/uploads/1/3/2/6/132683087/rejowodobezi-fewibakawugaj.pdfIn PDF document text
    • http://files.nagamegallery.com/uploads/1/3/1/6/131606408/5baedfa915bf75.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/1/0437/1120/1435/files/jevudovorimepof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6746/4085/files/bard_of_blood_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7530/4612/files/53691899009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7786/1527/files/53632726361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6083/9079/files/34576222644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3810/5000/files/9166955496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8131/1132/files/45290289558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/35130108593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1144/8729/files/fidiroriro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5362/2182/files/36721386408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5507/1900/files/sleeping_lotus_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7018/5879/files/19145986097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6845/6086/files/33095053913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/72350199952.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB299 5764 bytes
SHA-256: 0acf254bda816300c1d22964f08568767cb458249ef2f62f0f9d4fda639ff389
font_01_sfnt_off0000c621.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC621 2408 bytes
SHA-256: b6f27a5f4316f667639f598d4bbe039694e95378decc728804c672ceb0759bce
font_02_sfnt_off0000d09c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD09C 15804 bytes
SHA-256: eebba1c1bea27239243677c865b8dc570f0e4e69480044674f2e995c95d1df13