Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a76d72fc74b80be…

MALICIOUS

PDF

43.9 KB Created: 2020-08-27 21:40:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59dc8eb5c3ebe7f962c4ae005a7b38f1 SHA-1: cfe182a940588dc0ceb0bbd4d78f5f303ab5c5ee SHA-256: 7a76d72fc74b80bea5a60869cb13d46377adc83fa376c95ce91b4c7c1029a25f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The primary redirector URL is https://ttraff.ru/pify?keyword=dieta+ayurvedica+pdf, which is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other benign-looking Shopify URLs, likely as part of an SEO poisoning or free-download lure to drive traffic to 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=dieta+ayurvedica+pdf In PDF document text
    • http://files.ledsignsnow.com/uploads/1/3/1/0/131070581/9246722.pdfIn PDF document text
    • http://files.toxicfreephilly.org/uploads/1/3/1/8/131871705/vikapogafizijokaj.pdfIn PDF document text
    • http://files.mrkrieg.com/uploads/1/3/1/4/131437457/bulekaf.pdfIn PDF document text
    • http://files.catherinehedrich.com/uploads/1/3/0/7/130775304/9562005.pdfIn PDF document text
    • http://files.ridgeandvalleyreptiles.com/uploads/1/3/2/7/132740435/4298851.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/1/0431/2501/4679/files/5449249795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2590/8383/files/sositevevan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9634/2695/files/36672733428.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/pyvis_directed_graph.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6879/2733/files/nafowawanubamumazopib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/commuter_express_419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/buzekeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/zasikubisijobanenurob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/1924/0341/files/80476839579.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6888/3098/files/animal_cell_culture_medium.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7711/files/types_of_airplane.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_off00006e78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E78 5100 bytes
SHA-256: bb932685833727993e18936e89a3990bdd8c34429fd379ac0c811074e927a313
font_01_sfnt_off00007ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF5 10088 bytes
SHA-256: a69eab3ffb893d0c6f00c5bab5aa59d7886d5664374f7feeffa0a163dae69a23

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