Malicious PDF — malware analysis report

Static analysis result for SHA-256 798fe73de7bdfbc9…

MALICIOUS

PDF

36.4 KB Created: 2020-08-16 01:03:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 659ce17940450418f72ae80962004447 SHA-1: 04b6ef68276fa55ce1f8bf40b9e0d00868c4a52b SHA-256: 798fe73de7bdfbc9066dd57d9981660bf69437126ac6c6f5dc22589a068bc285
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. The embedded URLs, particularly the ttraff.com redirector, are indicative of a lure to download further malicious content or phish for credentials.

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=fortinet+fortigate+200d+datasheet In PDF document text
    • http://juroxos.cardiaone.com/uploads/1/3/1/4/131437119/siwogeni.pdfIn PDF document text
    • http://files.fundamentalmed.com/uploads/1/3/1/4/131438234/samuwuja-pepuwunopaxafu-felazanaxuxak.pdfIn PDF document text
    • http://files.copperchiefstore.com/uploads/1/3/0/8/130815014/7798345.pdfIn PDF document text
    • http://files.kdhodges.com/uploads/1/3/2/7/132740321/5360778.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/1/0428/9062/5191/files/juzitaludifa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/10610910654.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7011/8302/files/suxug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9301/5195/files/47766709229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0672/2211/files/xemubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8072/9251/files/kulaninabub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/pedaxinarugidovopifegujat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7812/3680/files/60933967871.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4671/5040/files/23242392559.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_off0000540b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x540B 5364 bytes
SHA-256: 0ef67010f988da2dc9307a28ff113c911c438e865c47b10cd4cc55c51b20826c
font_01_sfnt_off00006643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6643 9028 bytes
SHA-256: 35379064973f6045bf834f877ba4384b19f673aa3514ae13db7ffc54350ef4c1

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