MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a mass external link farm and a redirector URL, indicating a phishing or scam attempt to lure users to malicious infrastructure. The embedded URL 'https://ttraff.ru/pify?keyword=learning+excel+2020+pdf+download' is flagged as a known malicious redirector, likely serving as a lure for further malicious activity. The ML classifier also strongly indicated maliciousness.
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=learning+excel+2020+pdf+download In PDF document text
- http://files.jennifersglasscreations.com/uploads/1/3/0/7/130776500/9257589.pdfIn PDF document text
- http://files.perfectpelvicfloor.com/uploads/1/3/0/9/130969297/241985.pdfIn PDF document text
- http://files.bethadice.com/uploads/1/3/1/8/131871919/pinetopune-sowir.pdfIn PDF document text
- http://files.pictoucountyrootsforyouth.com/uploads/1/3/0/8/130814980/d7af8c7f27eb3eb.pdfIn PDF document text
- http://files.playyouth.org/uploads/1/3/0/7/130776562/17980551f7e8f.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/1/0437/5199/7592/files/tuwodeduvafi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1222/6200/files/key_budget_highlights_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1610/1798/files/sezifafurakemilebefim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1881/1552/files/35731318176.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1624/9767/files/52733192429.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7827/0619/files/56548013600.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7205/2634/files/zotezetokodofawe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7247/0686/files/4713375366.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8184/2341/files/wutefokos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/2440/2843/files/longman_dictionary_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/obc_caste_list_in_up_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/9701/7768/files/defectos_de_tubo_neural.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8520/9512/files/nombre_rationnel_4me.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7608/4117/files/halo_2_pc_download_reddit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8815/0690/files/jemozurugifedup.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_off00008993.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8993 | 5520 bytes |
SHA-256: dbf51296f21a3a1b57c2580ae48340065e8d30575ee853a962abb6753be55634 |
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font_01_sfnt_off00009c85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C85 | 10836 bytes |
SHA-256: f6333e889a7337bbdedc5ccf0ae3909f72ca54243001f9fb3ef01ac97d7ce06f |
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