MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The ML classifier strongly indicated maliciousness. The document body, though partially corrupted, contains the suspicious URL 'https://ttraff.ru/pify?keyword=presentarsi+in+spagnolo+pdf' and references 'wkhtmltopdf', suggesting it was generated programmatically to host a large number of links. The primary attack pattern involves luring users to malicious infrastructure via these embedded links.
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=presentarsi+in+spagnolo+pdf In PDF document text
- http://files.bsakoaks.com/uploads/1/3/1/3/131398094/5434590.pdfIn PDF document text
- http://razisitoj.padrepiogroup.org/uploads/1/3/2/8/132814930/xowanijuret_gituxulafarato_kodivegedav_gugobidufuki.pdfIn PDF document text
- http://files.riveroflifechurchcu.org/uploads/1/3/1/4/131453494/c20150c5a5b2086.pdfIn PDF document text
- http://silatepuv.evolvevolleyball.com/uploads/1/3/1/1/131164250/jizijevawubenasakiti.pdfIn PDF document text
- http://files.lambersfisher.com/uploads/1/3/1/6/131606087/fikojuno-tanaz-zofaliwiwiguw.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/1/0438/4423/9510/files/mapolopapoketezime.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52135332303.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3058/5250/files/90480176185.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5046/6471/files/93610762222.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1444/7519/files/acceptance_letter_format.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9569/4239/files/google_doc_checkbox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9270/4408/files/51429487201.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3584/5017/files/48865059897.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fovurasavelibegesixaga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7689/4372/files/bayesian_inference_in_statistical_analysis_box.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/sirujibugokosogatorutono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6427/9718/files/64332048966.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_off00007c32.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C32 | 5212 bytes |
SHA-256: 941218df973b767e04206fcd4b5aded921838cbd03fccc0fe396ea6a24ab414c |
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font_01_sfnt_off00008dee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8DEE | 11208 bytes |
SHA-256: ee82b5bd0ccbce271c97a01d14682bae9e813c7b42526638e5530621c786caa9 |
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