MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to benign Shopify domains, but one critical link redirects to a known malicious domain (ttraff.ru). The document body, though heavily obfuscated, contains text that suggests it is a lure for academic papers, and the presence of a 'download button' heuristic further supports this. The primary malicious IOC is the redirector URL, which is likely used to serve a secondary payload.
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=allen+test+series+papers+pdf In PDF document text
- http://files.internationalpeaceconference.org/uploads/1/3/0/7/130740513/xureped_pexowiza_melarasuvozopi.pdfIn PDF document text
- http://files.bcrecordersociety.com/uploads/1/3/0/8/130874524/govudanira.pdfIn PDF document text
- http://gejaso.danyaleducation.com/uploads/1/3/1/4/131453133/4d7cd33a551.pdfIn PDF document text
- http://geviluwe.belindarimmer.com/uploads/1/3/0/8/130814328/1673081.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/1/0430/3690/1527/files/duwomofugixugolumebegiwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0105/2321/files/95472289042.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2027/1264/files/napadazafabixuxosizexumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97428896976.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3290/2806/files/14890758074.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5095/7991/files/24980485904.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2924/0727/files/ruratiwupeluwewomedope.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1791/0941/files/50885656923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3431/9776/files/faxotese.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7866/4867/files/30717711793.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_off00005297.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5297 | 4704 bytes |
SHA-256: 76f7519d070ab33135a669e438bbc2b37f8781549df8b56401e789b1f47ab7e3 |
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font_01_sfnt_off0000628b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x628B | 10488 bytes |
SHA-256: 282d9ec34342cbc9b9d15cff73fc45b60e20422aa45ce9063c40a2575adc1d3e |
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font_02_sfnt_off00008670.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8670 | 4324 bytes |
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c |
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