MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The document body, though malformed, contains text related to 'argumentative writing definition pdf' and the malicious redirector URL, indicating a lure. The ML classifier strongly flagged this PDF as malicious, and heuristics confirm it links to known malicious redirector infrastructure and exhibits characteristics of an SEO link farm.
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/pify?keyword=argumentative+writing+definition+pdf In PDF document text
- http://files.structuredevelopmentnw.com/uploads/1/3/1/0/131071145/nobolazow-tuxoxugep-mekazazufobi-puseju.pdfIn PDF document text
- http://files.dimotra.com/uploads/1/3/1/1/131164168/joxevuxiwozupoteja.pdfIn PDF document text
- http://files.a2consultation.com/uploads/1/3/1/3/131384081/kosilelov_zukozajawoxa_famuna_tiwaviralupom.pdfIn PDF document text
- http://files.albertastockdog.com/uploads/1/3/1/3/131380627/8078683.pdfIn PDF document text
- http://files.agileleantransformation.com/uploads/1/3/1/4/131453015/6faadffa6fa35.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0432/7276/5598/files/38866551768.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4836/1375/files/17862379305.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2388/3688/files/57717368555.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/9169/3463/files/dubai_expo_2020_master_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/78046530146.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7963/8942/files/86981403814.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0131/4454/files/workplace_health_safety_and_welfare_regulations_1992.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5742/2229/files/sapovavoxunotameboxaliru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9983/0952/files/xoxofokesonu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2508/9191/files/puwajamiwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5851/1510/files/85210391145.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1991/7719/files/12892669526.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_off00006f5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F5D | 5176 bytes |
SHA-256: 8d0dc6591e39d22dff6ac1dfb39b05084114d7010c3cd411269c4e6ea155574e |
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font_01_sfnt_off000080f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80F0 | 11208 bytes |
SHA-256: 126964bb2c820641d62960ee74e586b5ed6936541a634f20a31e1a931f924f42 |
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font_02_sfnt_off0000a615.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA615 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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