MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious File: Malicious Link
The PDF file was identified as malicious due to a high ML classifier score and the presence of a critical heuristic firing for a malicious redirector link. The document body contains numerous embedded URLs, forming a link farm hosted on Shopify, which is indicative of SEO manipulation or an attempt to obscure malicious destinations. The primary malicious URL identified is https://ttraff.cc/wb?keyword=nationality%20worksheet%20islcollective, which likely serves as a redirector to further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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/wb?keyword=nationality%20worksheet%20islcollective In PDF document text
- http://files.communitybaptistcoldlake.com/uploads/1/3/0/7/130740323/843dab3b2e.pdfIn PDF document text
- http://files.jedidiahrentals.com/uploads/1/3/1/6/131607093/turaxo-jiwelejojugi-fapazu-tugelosixofuva.pdfIn PDF document text
- http://files.jscsbc.com/uploads/1/3/0/9/130968996/manevobijubaw-nojovotulu-nikizutadudaxi.pdfIn PDF document text
- http://files.cikgusaffuan.com/uploads/1/3/0/7/130740249/bifusotil_pazelovi_zoxuvudewifese_pekijipowa.pdfIn PDF document text
- http://weput.stjohnsfruitland.com/uploads/1/3/1/4/131408854/f8661f5469a8.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/1/0431/6758/0322/files/gavadilibimejaxerunumedal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4130/8319/files/amplifier_circuit_diagram_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0555/4337/files/two_airplanes_flying_together_in_formation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0084/7781/files/kojasafuvixolevaluvosoli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/6640/6550/files/5897185568.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0360/8231/files/oxford_dictionary_offline_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1234/8315/files/blender_3d_animation_tutorials.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5570/9341/files/54015954567.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5176/8225/files/bedowukexowifas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0364/9954/files/50570177687.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7764/5974/files/pizokimadedog.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004488.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4488 | 5176 bytes |
SHA-256: f1f7a5df1cc2aa7c25a4a5d6cc3cff1b9e80a13d90b877da938b70af63c87faa |
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font_01_sfnt_off0000563a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x563A | 9356 bytes |
SHA-256: ccd05f361fedf8b6499e76194302bc3f5f0616b8b677036ecf55f5bdc079a6c6 |
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