MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious intent, including links to a known redirector and a large number of external PDF links, suggesting a link farm for SEO manipulation. The document body and heuristics explicitly mention a lure to install an 'acrobat reader chrome extension', which is a common social-engineering tactic for credential theft or malware delivery. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.com/pify?keyword=install+acrobat+reader+chrome+extension In PDF document text
- http://duribesi.clearcreekbands.com/uploads/1/3/0/8/130874038/xamefeba_fijem_nowepuruz_zugagutiba.pdfIn PDF document text
- http://files.diamonddoorltd.com/uploads/1/3/1/6/131607575/luxum_levageb_fukoxomoxazi_sadetasokop.pdfIn PDF document text
- http://files.pimpyothrone.com/uploads/1/3/0/8/130874317/5277845.pdfIn PDF document text
- http://files.billiamscafe.com/uploads/1/3/2/6/132696598/5886895.pdfIn PDF document text
- http://files.amydoanphotography.com/uploads/1/3/2/3/132302732/nosotulubepama-romopere-nosunobozepotaw-xasinubomomod.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/1/0437/5340/6618/files/host_file_in_windows_10.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8052/4710/files/2929026691.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6776/7970/files/new_years_eve_houston_2015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0469/0581/files/27845588526.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/1743/3251/files/fusionner_2_mac_sierra.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5778/2690/files/topugafiduwijofexer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5064/7202/files/46807035882.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1859/8053/files/53866196682.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/3810/0891/files/56552148552.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3512/2081/files/65009589926.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7177/4615/files/gafufoxevewagiwivokeros.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1771/5361/files/79168351113.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_off0000976c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x976C | 5324 bytes |
SHA-256: 821c67cbf0df7e4bccc4e3cf268bf5ecb6a61754a3f97c6cfa4ef5e3978bd13a |
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font_01_sfnt_off0000a947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA947 | 10152 bytes |
SHA-256: a39d3e75ef3d8610e58d7a1d960da7559b147eb1c64fe711cad5377d869c75d7 |
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