MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, forming a link farm. One of these links directs to a known malicious redirector at 'https://ttraff.ru/pify?keyword=%25D0%25B7%25D1%2580%25D0%25B5%25D0%25BB%25D1%258B%25D0%25B5+%25D0%25B2+%25D0%25BF%25D0%25BE%25D1%2580%25D0%25BD%25D0%25BE+%25D0%25B2%25D0%25BA+merengo', indicating a malicious intent to redirect users to harmful content. The presence of a large number of external PDF links suggests a tactic to distribute malware or phishing content through a network of hosted files.
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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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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=%25D0%25B7%25D1%2580%25D0%25B5%25D0%25BB%25D1%258B%25D0%25B5+%25D0%25B2+%25D0%25BF%25D0%25BE%25D1%2580%25D0%25BD%25D0%25BE+%25D0%25B2%25D0%25BA+merengo In PDF document text
- http://files.losangelescountyfirefightersemeraldsociety.com/uploads/1/3/2/6/132681544/refesotodopur_gedapobesa.pdfIn PDF document text
- http://files.thecurvymom.com/uploads/1/3/0/8/130874139/tazowugubavebapefa.pdfIn PDF document text
- http://files.biogeographyresearchlab.net/uploads/1/3/0/9/130970004/46645a06d3175.pdfIn PDF document text
- http://files.ptgtrainingllc.com/uploads/1/3/1/4/131406797/c837b5778b4.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/1/0429/9928/3863/files/21927705681.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4659/0872/files/xitebajasavu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2029/5064/files/83510705459.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8570/9987/files/kozumarividebelaluwofive.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4478/8634/files/ginopu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8615/9767/files/94681728876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7567/4012/files/95107760848.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7686/8510/files/xuduxukonedo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5082/6905/files/54729723327.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/36513824582.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
🗂 Part of campaign:
biogeographyresearchlab.net
3 samples
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004cf1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4CF1 | 5212 bytes |
SHA-256: 138bb808c995ce843fea6ebd1b30a5a549a4bd817e3d0cad1a5259a9ccda5de2 |
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font_01_sfnt_off00005de2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5DE2 | 12808 bytes |
SHA-256: 2dde1345873f1cf696b4d9a2d825d74b0f81eb437c6315bbc6d0bbe39152ae13 |
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font_02_sfnt_off00008629.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8629 | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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