Malicious PDF — malware analysis report

Static analysis result for SHA-256 301377e085eb8b67…

MALICIOUS

PDF

39.1 KB Created: 2020-08-14 14:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2fc4cb3f452dd6e4fab95478c5d6454d SHA-1: 63735c189faa64161b54641e1eaaab71e93d7789 SHA-256: 301377e085eb8b67392f29e9044f2f5b2f54265b411239ac07781a09163a76de
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.com, which is likely used to obscure the final destination of the malicious payload. The document also embeds a large number of links to other PDFs hosted on Shopify, likely as part of a link farm to improve search engine ranking and lure unsuspecting users. The ML classifier 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.com/pify?keyword=jawbone+up3+manual+dansk In PDF document text
    • http://files.woodlandsfrenchies.com/uploads/1/3/1/3/131383553/buvomagedax_dopiriveluk.pdfIn PDF document text
    • http://files.glazinggracestoneware.com/uploads/1/3/1/4/131437685/nonef_roruz.pdfIn PDF document text
    • http://ziwub.southbaywoodworkers.org/uploads/1/3/2/3/132303382/1164495.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/1/0431/6895/6565/files/bosque_humedo_tropical.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8266/9461/files/58281537141.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/balava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/92680828465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2758/6472/files/32678481447.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1708/4833/files/21806737081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0458/4355/files/tapenavivumolekomut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/80835258875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/types_of_smart_antenna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/85866899344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/advantages_of_pneumatic_system.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_off00005ae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE0 5460 bytes
SHA-256: 5b7f781222e63b38c4f660bf569658e9ae44f861e63742d9db83c71bac318313
font_01_sfnt_off00006d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6F 10180 bytes
SHA-256: 58708f2f4db788ed76f6c408c66283ac268b271b05c94a35f7353675b4512b8c

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