MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a reference to the URL https://ttraff.ru/pify?keyword=bpmn+2.+0+quick+guide+pdf, suggesting a lure to download further content. The presence of multiple Shopify URLs, some flagged as benign and others unknown, indicates a link farm strategy. The ML classifier strongly flagged this PDF as malicious.
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=bpmn+2.+0+quick+guide+pdf In PDF document text
- http://files.whitestonemv.com/uploads/1/3/1/3/131378923/6a977.pdfIn PDF document text
- http://jiguru.andy-buchan.co.uk/uploads/1/3/2/6/132682883/811625.pdfIn PDF document text
- http://files.capitalfinancialplanningcharitablefoundation.com/uploads/1/3/1/4/131437669/9624467.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/1/0434/3005/2005/files/14465508116.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2674/9339/files/ancient_greece_map_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1328/3735/files/69604500101.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/4255/9384/files/atlas_lathe_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9917/6612/files/femazabirokaredofufokit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8507/8423/files/beowulf_online_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7427/3948/files/97184882813.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6043/5871/files/fevutex.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3916/9429/files/todagit.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_off00007339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7339 | 5504 bytes |
SHA-256: eac0810891f11fb0553d67d2930ced9141fd1c981f51384700e163259ee76838 |
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font_01_sfnt_off000085ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x85EA | 10244 bytes |
SHA-256: abe7b12fc7cf2234ba70bef5f1ec1155e80c8f566ae6e4cc43e59f19b4c179de |
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