MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm and a malicious redirector URL, indicating an attempt to lead users to harmful content. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=neurofibromatosis+tipo+1+pediatria+pdf as pointing to known malicious infrastructure. The presence of a visual download button lure further supports the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.ru/pify?keyword=neurofibromatosis+tipo+1+pediatria+pdf In PDF document text
- http://files.silentmanfilm.com/uploads/1/3/1/6/131606208/tetoxofo.pdfIn PDF document text
- http://files.amygdala-press.com/uploads/1/3/0/7/130775292/basazodawuduzipexu.pdfIn PDF document text
- http://files.slsfnc.com/uploads/1/3/1/4/131408772/mukobixadaferi.pdfIn PDF document text
- http://files.psi-loveu.com/uploads/1/3/1/4/131453249/xadewagijugevor-xovutob.pdfIn PDF document text
- http://files.vcaec.org/uploads/1/3/1/8/131858287/141951.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/1/0437/1605/1112/files/45144615777.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8530/6782/files/cvc_words_workbook.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1791/9909/files/kuval.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/58580374151.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3579/4327/files/44603958857.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7874/6261/files/somuwidepojikejime.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1877/8781/files/ziwerojeperutonuxidesil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6214/8763/files/37438458702.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4273/4237/files/wavevas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bepojarovizezeba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8841/8718/files/eduardo_galeano_cerrado_por_futbol_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/6668/3545/files/achtung_panzer_english.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_off0000a7ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA7AB | 5316 bytes |
SHA-256: 7bada7e3f2445a0126734f999842568ef7d34e9edb0daddae4934e025d45047a |
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font_01_sfnt_off0000b9aa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9AA | 10920 bytes |
SHA-256: 520c9b251439f065d3525bf5575a11ac2c42c711841926fd8ab9b2382319043e |
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