MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to a link farm designed to redirect users. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=articles+exercises+intermediate+pdf+with+answers'. The document body is heavily obfuscated but contains references to the redirector URL. The presence of numerous links, including those to benign-looking Shopify URLs, suggests a tactic to obscure the malicious destination and potentially leverage search engine optimization for discoverability.
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.com/pify?keyword=articles+exercises+intermediate+pdf+with+answers In PDF document text
- http://files.lightmybottles.com/uploads/1/3/1/6/131607683/ritafupusoxu.pdfIn PDF document text
- http://poxajipel.alexlanshe.com/uploads/1/3/1/6/131606490/a25cfa2ababd6ad.pdfIn PDF document text
- http://tuset.isaiahinstitute.org/uploads/1/3/0/8/130814297/ritefawolalexomomi.pdfIn PDF document text
- http://biwoxariv.mhes-ses-bandstrings.com/uploads/1/3/0/7/130776132/83f9b973bfd75e6.pdfIn PDF document text
- http://gaxafisub.lauranaomiartisan.com/uploads/1/3/2/7/132712358/welanelopawox_vinuma_bifitove.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/1/0431/0541/9418/files/arduino_learning_sinhala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2190/9667/files/wilozowadevijetaraga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3490/1660/files/66976508847.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5446/5175/files/mokudagej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/2358/6712/files/lesson_10_fragments_and_run_ons_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6704/0163/files/bearing_math_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0460/0781/2257/files/darobawub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4176/7072/files/93841370179.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8862/5316/files/bebeferis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2140/8168/files/xodapizowosolowixo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4298/7422/files/xedenasuduwaxodapev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8996/1884/files/vadunope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/7238/3128/files/alcatel_1_user_manual.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_off000075e0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75E0 | 5544 bytes |
SHA-256: 34ecaf19e1e3e7a2bbd574d666736ea812d15c75756bd930b25294d0b5157a6c |
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font_01_sfnt_off0000889d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x889D | 12348 bytes |
SHA-256: 827070294c6a3fa2d196096b0101abfde542e3088748d561b7636a8ae2eb2a86 |
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