MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/wb?keyword=pronunciation%20reading%20exercises%20pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0433/4888/5662/files/gulorovezoti.pdf'. The document body, though heavily obfuscated, contains these URLs, suggesting a lure to trick users into clicking through to malicious 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=pronunciation%20reading%20exercises%20pdf In PDF document text
- http://files.citykidzmag.com/uploads/1/3/1/6/131606360/pavufoj.pdfIn PDF document text
- http://files.factsoverfeelings.org/uploads/1/3/1/4/131406222/4398068.pdfIn PDF document text
- http://files.romuluseducation.com/uploads/1/3/1/8/131856632/6be124590ab.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/1/0433/4888/5662/files/gulorovezoti.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6345/9496/files/brazzers_free_access.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/76436761717.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6843/1265/files/dikasuxajasewajole.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2476/9436/files/betoselisejavusobepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7811/3697/files/maxobataratewi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4023/4902/files/65600750729.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7910/6724/files/67550127658.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5348/2138/files/bogagukanebigawutivikiriw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3745/6534/files/junewefeboronixejor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5139/2922/files/15345277409.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0923/6374/files/vipezaniboru.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5950/1464/files/nursing_drug_handbook_2017_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3066/6651/files/35498603291.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_off0000680c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x680C | 5244 bytes |
SHA-256: 29b655c74d808de12a70ba90b29c8db3e3daa58b1e80e4d9980a4703ae0b6788 |
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font_01_sfnt_off000079f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79F1 | 10292 bytes |
SHA-256: fcb5c4151c3f4edfa719d2647d7449aa152e5678b03257b393e9f3e5ef444d21 |
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font_02_sfnt_off00009d3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9D3D | 4324 bytes |
SHA-256: ad623bc7c681097dfa1224999cf6cc6072d3ca9a137655dc1129b0261f0b357c |
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