MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to external resources, classifying it as a link farm. One of the primary links redirects to a known malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'punctuation worksheets for 1st grade' and the malicious redirector URL, suggesting a lure to trick users into clicking through to potentially harmful 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.ru/wb?keyword=punctuation%20worksheets%20for%201st%20grade In PDF document text
- http://files.266michiganroad.com/uploads/1/3/2/6/132680908/xujolen.pdfIn PDF document text
- http://worebakef.hursthistory.org/uploads/1/3/2/8/132814930/fuvopanevitiwe.pdfIn PDF document text
- http://files.cmsreads.com/uploads/1/3/1/3/131397996/2830084.pdfIn PDF document text
- http://jezodipir.illinkgraphicprintstudio.com/uploads/1/3/0/8/130874284/fasojegoxevuv.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/1/0434/7143/7984/files/gamomebirivizogugimiredej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3728/6812/files/time_machine_band.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4525/6344/files/99177417286.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0763/0747/files/balanza_de_pagos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6808/7701/files/bowditch_vol_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8788/8535/files/all_you_zombies_heinlein.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8844/5604/files/sositafuxijezelo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7659/1509/files/14885505604.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9168/0673/files/helicobacter_pylori_tratamiento_natural.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6241/1935/files/pomamowu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8609/4248/files/17825205968.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0553/4620/files/27989763271.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8166/1600/files/site_reliability_engineering_google.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/71470949005.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7728/0671/files/carbohydrates_nios.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_off00005623.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5623 | 5460 bytes |
SHA-256: 45afa12bb8d27099058f254ed2b247b7a1d306da4ca78440a23cda6d99a41df2 |
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font_01_sfnt_off000068c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x68C3 | 11140 bytes |
SHA-256: cb7341ef118c6d8b2496329c8745250f9ffc3223bec407832470c6ef76c0a199 |
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