MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM suggests a large number of external links are embedded, with the primary redirector being traff.cc. The document body, though heavily obfuscated, appears to be a worksheet, likely a lure to encourage interaction with the malicious links.
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.cc/pify?keyword=identifying+functions+worksheet In PDF document text
- http://files.gracebaptistmarshall.com/uploads/1/3/2/7/132710748/b1a5e2.pdfIn PDF document text
- http://files.kmpc.org/uploads/1/3/0/9/130969026/643acc0bf7e62.pdfIn PDF document text
- http://files.victoriapolishhall.com/uploads/1/3/1/4/131408502/nepisogepefotadagevi.pdfIn PDF document text
- http://files.predictiv.co.uk/uploads/1/3/0/8/130874090/91cd1b9566ffb1.pdfIn PDF document text
- http://files.artsindustryalliance.com/uploads/1/3/0/8/130874381/fadurububoxupurujob.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/1/0431/4388/9058/files/dofenedezifonezorol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8996/0865/files/32027972250.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3742/5813/files/metutigob.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1121/1425/files/zalubizazewegapumuwela.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8852/7013/files/83976063474.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9389/4044/files/guvufomidilobuwisemuvugat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4334/0956/files/94217073486.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4987/6630/files/guwexosisexumuza.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1382/4927/files/39779422876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6942/3269/files/wegoxopo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8646/2628/files/90962896586.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61CA | 5116 bytes |
SHA-256: bfa06899812fa9cc66bf43e280fd72a7353e98f2224aa718f8cd8fcfe1011bfe |
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font_01_sfnt_off00007346.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7346 | 9824 bytes |
SHA-256: f45970f5bf5d015ff706633aaca069e0026d2ddf888ecb5610509c957630a806 |
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font_02_sfnt_off00009522.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9522 | 16116 bytes |
SHA-256: de5e424296fca6632de503ebef56d41c9898c13bba2aba3354ff7f3c3578a82d |
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