MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links, suggesting a link farm for SEO manipulation. The document body itself contains a URL that points to a redirector, which is part of a social engineering lure to install a browser extension or update. This behavior is consistent with phishing or malware distribution campaigns.
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=camstudio+9.+1.+0 In PDF document text
- http://files.leesvilleroadxc.com/uploads/1/3/2/8/132814168/1242402.pdfIn PDF document text
- http://zaboz.quik-smog.com/uploads/1/3/1/8/131857631/9486541.pdfIn PDF document text
- http://dajix.liquorburn.com/uploads/1/3/1/8/131856462/petawogezozazekuz.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/1/0428/2354/9094/files/72964508236.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4443/7142/files/medicinal_chemistry_of_anticancer_drugs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2020/5726/files/27184431149.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9122/1923/files/12183778921.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7237/3411/files/bella_ciao_chords.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1312/8867/files/risut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2470/9782/files/ramadan_calendar_2020_philippines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9675/0742/files/57638218782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/40410445607.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2788/9308/files/niv_cultural_backgrounds_study_bible_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9659/5861/files/jasevaxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5312/9640/files/biocombustibles_definicion.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4155/3575/files/84457232156.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_off000061b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61B4 | 5128 bytes |
SHA-256: 799327f707f21cba303f8596ce1e29bd0e42d7804a86b0394ae2c496fb727b24 |
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font_01_sfnt_off00007319.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7319 | 10580 bytes |
SHA-256: 31540c98cb566a83e03dfb1f23b9ce3ba11cef66f6cf92a1e7a3a0119fed5798 |
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