MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF contains a lure to install a browser extension or update, a common social-engineering tactic. It also features a mass external PDF link farm, with one link pointing to a known malicious redirector infrastructure at 'ttraff.ru'. This suggests the document is designed to lead users to malicious sites, likely for credential theft or malware delivery.
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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=biopsychology+books+pinel+pdf In PDF document text
- http://vikevixo.gblissdesigns.com/uploads/1/3/1/4/131406390/12af2b510e5d1.pdfIn PDF document text
- http://files.sunsalutestudio.com/uploads/1/3/1/1/131163777/a1cc5c6c478f998.pdfIn PDF document text
- http://xaxonesab.ckgrealty.com/uploads/1/3/0/9/130969352/dotisojabaluxip_gutudarog_wurozifigujebi_nanuwudirejokuj.pdfIn PDF document text
- http://files.asoprimatologicacolombiana.org/uploads/1/3/0/8/130815017/025f1aac18d23.pdfIn PDF document text
- http://files.yoder-bros.com/uploads/1/3/2/6/132681617/9704509.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/1/0433/9050/1020/files/nunufa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/93196331165.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7316/6744/files/10123180062.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6649/7960/files/minecraft_import_account.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0093/9164/files/sepasukixubijaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1675/7153/files/34785598158.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/anatomia_y_funcion_del_higado.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7279/0428/files/minecraft_autofisher_autohotkey.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/1335/6189/files/18546302197.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0197/0837/files/94026927615.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1574/0314/files/how_do_you_play_audio_on_discord.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_off0000a5d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA5D9 | 5176 bytes |
SHA-256: a5d7ab58179c2f61f177bd58451d55f831f33f96fbdcdee8872c73ce9d212d45 |
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font_01_sfnt_off0000b763.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB763 | 10776 bytes |
SHA-256: 8f78b0ea70d9aad1af7dfc66e9cbe08ffea1af096ee4480c913a921013085c25 |
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font_02_sfnt_off0000dc35.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC35 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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