Malicious PDF — malware analysis report

Static analysis result for SHA-256 799483652b8697f4…

MALICIOUS

PDF

41.5 KB Created: 2020-08-17 15:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 215a3f47f657f6441483eb0b433cb93c SHA-1: 56d810429fbf2c2e1d129c5609245b8440561513 SHA-256: 799483652b8697f42174160e6b4f3af712317e8df842a49c12b90c4eecfff17e
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to redirector infrastructure like 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Canterbury free font' and a URL that aligns with the heuristic findings of a link farm and SEO redirector. This suggests a phishing or scam attempt to lure users to download potentially malicious content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=canterbury+free+font In PDF document text
    • http://files.karenepoirier.com/uploads/1/3/0/8/130814043/goxojodotiwanaraz.pdfIn PDF document text
    • http://pejuka.radicalphilosophyassociation.org/uploads/1/3/1/8/131871655/5312948.pdfIn PDF document text
    • http://files.reikibysharon.com/uploads/1/3/1/4/131437956/3ca9ab94b14c64.pdfIn PDF document text
    • http://files.instantcarappraisal.com/uploads/1/3/0/9/130969744/ed16ae8a8f253.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/1/0427/5650/5756/files/senerega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6917/6985/files/87760591118.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4470/9276/files/26691052765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9495/0556/files/weredokajikavepisidasoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sovir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2893/0979/files/tokiden.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0625/4494/files/property_development_business_plan_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6481/1927/files/fukakata.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/xojidijo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3444/1885/files/tudexomaluvexufitaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/pelasadapijomavugo.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5334 4700 bytes
SHA-256: a67776e49ccf6494d0a2b6bf06c0975ddabfdadde29026e7906b845ef5a3e2de
font_01_sfnt_off00006343.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6343 3420 bytes
SHA-256: 84b94c6cc101a1e5adb81324c5d6c95ea2925a79dfcffedcc7da28c81bc491f6
font_02_sfnt_off000070fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70FC 11924 bytes
SHA-256: 0bb2e79732e3cc64c04d38c98b80c986381e8dc2fd217de75a6a5f53ff50ae92

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