Malicious PDF — malware analysis report

Static analysis result for SHA-256 359bde1d05c5c6a4…

MALICIOUS

PDF

40.3 KB Created: 2020-08-16 20:44:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d1deb2ebd931bfb1b6c9d203484eb5d SHA-1: 51acd26daa316571a939d010877582bb173585c0 SHA-256: 359bde1d05c5c6a451e4836d9ffa44a54753c744eb71204d4bd7544051c9ce74
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to the redirector URL and other URLs hosted on Shopify, suggesting a coordinated effort to distribute malicious content through a link farm. No scripts were extracted, and the primary malicious behavior observed is the redirection to external malicious sites.

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=celerio+tour+h2+brochure+pdf In PDF document text
    • http://files.icuglam.com/uploads/1/3/1/4/131436978/0d860dc60351.pdfIn PDF document text
    • http://files.elegantmusic.ca/uploads/1/3/1/6/131606128/tadisotune.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/1/0429/6402/5493/files/bojinoxilif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4488/7966/files/1053699503.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2640/7843/files/2891797539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/795999665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/34167743528.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7736/0029/files/against_the_odds_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5921/6533/files/24824812942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1277/6351/files/98431828924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3641/6936/files/writing_winning_business_proposals_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1943/6185/files/betogi.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 1

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_off0000608c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x608C 5032 bytes
SHA-256: 33da7ce90fd486e4bcd8052750c602e5896fe0e5c33cc831d8be3048139ba085
font_01_sfnt_off0000719d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719D 10244 bytes
SHA-256: 425c2cb6ab6e8c3d35a86b9f9d13077f08faabe1f7252523a4e46268054cd499

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