MALICIOUS
234
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 known malicious redirectors and a general lure for browser extension installation. The document body, though heavily obfuscated, contains a URL that appears to be part of a social engineering scheme to trick users into downloading a fake installer. The ML classifier strongly supports the malicious verdict.
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.com/pify?keyword=chrome+offline+installer++english In PDF document text
- http://zefevumel.mtlclownfest.com/uploads/1/3/0/9/130969204/dedus.pdfIn PDF document text
- http://files.cpeessentials.com/uploads/1/3/0/9/130969558/jipaxifodi.pdfIn PDF document text
- http://files.aztrinitymusicacademy.com/uploads/1/3/1/8/131872273/6535066.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/1/0432/3888/3485/files/99146216888.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1048/0537/files/xurubimasoxigoxirozid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3765/5191/files/14188251134.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7492/0347/files/ff14_hades_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4115/3439/files/how_to_prove_a_function_is_injective_and_surjective.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0346/9221/files/fanujaxolefemonepagipomi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5625/1555/files/situwogutox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3844/0598/files/27985971082.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/febipak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6043/5871/files/komamejag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0668/7389/files/63047666123.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3428/0090/files/agisoft_photoscan_trial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8140/8420/files/kerazapovigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6026/5117/files/48497769072.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_off0000793d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x793D | 4992 bytes |
SHA-256: 8c77b9fb2ce52f99160f1c07729b71ca57fb41ae25ada41cbdf2c4be683a6070 |
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font_01_sfnt_off00008a08.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A08 | 10088 bytes |
SHA-256: 56d8a02cb38399be04d8c4b76cf61c306f348ddbc2f434c1614786e28ee9bb08 |
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font_02_sfnt_off0000ac9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAC9C | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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