MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a malicious redirector link disguised as a physics lab report, aiming to lure users to a harmful website. The ML classifier strongly indicated maliciousness, and the presence of numerous external links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to distribute the malicious content. The primary malicious IOC is the redirector URL.
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=informe+de+laboratorio+de+fisica+caida+libre+pdf In PDF document text
- http://files.lifestylerant.com/uploads/1/3/1/4/131437131/ebcb9f13.pdfIn PDF document text
- http://files.museumtrustee.org/uploads/1/3/1/4/131453588/puxowuviratidu.pdfIn PDF document text
- http://files.conciergesleepmedicine.com/uploads/1/3/1/6/131637763/844964d1b9da.pdfIn PDF document text
- http://files.katefulcherconservation.com/uploads/1/3/1/0/131070539/zavonixolunewev.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0435/9041/8591/files/48560527169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8334/2748/files/86639778388.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8219/4852/files/21743023785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7218/2685/files/53832114767.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8143/3242/files/7323653363.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5991/2610/files/18202682136.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9232/8102/files/manual_de_biomagnetismo_medico_cleotilde_pineda_cabrera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pedarivorenali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4828/7912/files/cooking_guide_vanilla_wow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9699/8048/files/murobupijabubawonarugotex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2402/2677/files/28666913877.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2214/8003/files/zomoxakezez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5689/0013/files/kawogefedabej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3673/5645/files/bamedukezivuwusugumejoxet.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000074fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74FA | 1696 bytes |
SHA-256: 0727529401fe802ed9d02ac4b3bed84f53da9d0a5838f1dab7fe2f7579417e88 |
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font_01_sfnt_off00007d24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D24 | 5380 bytes |
SHA-256: e46fb04a1a89cca5e6182503a5ecbe2a13a497a509a0db0aaf7623bca093947b |
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font_02_sfnt_off00008f47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F47 | 15772 bytes |
SHA-256: e7863eabe8927bca95a9db169813c6f77cf993b3da5c6122578133a4e5259ea3 |
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