MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links directs to a known malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the attack. The document body, though heavily obfuscated, contains text related to a 'worksheet' and the malicious URL, suggesting a lure for phishing or malware distribution. No scripts were extracted, but the heuristic firings strongly indicate malicious redirection and link farming behavior.
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/pify?keyword=comparing+speeches+worksheet In PDF document text
- http://files.masterclassbudapest.com/uploads/1/3/1/3/131398259/delirobufukoxis-rudovizikelex-nulomigeforudid-kulapenefeba.pdfIn PDF document text
- http://files.xanderhouff.com/uploads/1/3/2/6/132681559/xifegokoroga.pdfIn PDF document text
- http://guxatu.thehandsprogram.org/uploads/1/3/0/7/130738748/gobinut.pdfIn PDF document text
- http://kagoj.artscollective.co.nz/uploads/1/3/1/6/131606271/barogazuxisaxivoze.pdfIn PDF document text
- http://jilis.rebeccasheraton.com/uploads/1/3/1/0/131069934/gozojulugibawusasig.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/1/0433/9610/4348/files/gudomonepekubakapijoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4605/1744/files/71135851273.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8631/5684/files/concepto_de_calidad_segun_autores.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5280/1943/files/91610085653.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5093/3156/files/cetosis_en_vacas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4488/5912/files/annual_return_form_iii_rule-_21_4a.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7591/0294/files/144323245.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7664/9121/files/define_mandatory_reporting_care.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9340/2534/files/fevizugopiwirufuxolepuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0936/7461/files/the_bogleheads_guide_to_retirement_planning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8578/3447/files/natezeduba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6395/7909/files/35852592206.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/6676/9827/files/itinerary_template_for_travel_agents.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_off000076a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A4 | 5376 bytes |
SHA-256: 64926b2cb8e31326c9541f6450c0913365aefd7d1929836535b0d1e729108c87 |
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font_01_sfnt_off000088d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88D5 | 10664 bytes |
SHA-256: f00ae358f93f347ae4e783e361034fb84c53b7fce31f8c4963cd57e419cb4bc9 |
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