MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files, characteristic of a link farm. One critical heuristic identified a malicious redirector link, suggesting the document is designed to lure users to malicious sites. The presence of a 'download button' heuristic further supports the lure-based attack pattern. No scripts were extracted from this sample.
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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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.ru/pify?keyword=legacy+charting+companion+free In PDF document text
- http://dawok.schifferpublishingltd.com/uploads/1/3/1/4/131406893/911dbaf48516dfc.pdfIn PDF document text
- http://files.trinitysecurityallies.com/uploads/1/3/2/7/132740361/wavubalefariruse.pdfIn PDF document text
- http://zozap.nancyamchugh.org/uploads/1/3/2/6/132680813/7444132.pdfIn PDF document text
- http://files.createdheavens.com/uploads/1/3/0/7/130775292/firapusikojosed_zekonifebuzexak_pixigekuxiw_serudumer.pdfIn PDF document text
- http://files.ranchochamber.org/uploads/1/3/2/6/132680890/a1bb11.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/1/0437/1618/2166/files/pujupufekugevivejefev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5373/6351/files/25787286521.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0006/0310/files/49978760970.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4636/2533/files/raxevuwukobufifiwolimos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4655/2230/files/apache_car_game.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8833/0396/files/application_store_apple.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6150/2362/files/bizigox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/5034/9223/files/free_offline_english_dictionary_for_laptop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4198/0567/files/4507408210.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9721/0532/files/54840057873.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6244/3688/files/vscode_format_document_indent.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_off000063d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63D3 | 5260 bytes |
SHA-256: e31a16dea6d95dc086298b271ca00a3e0e213b9d33de1a4e7b8695800d286d42 |
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font_01_sfnt_off000075a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75A0 | 10488 bytes |
SHA-256: a8ffc934bc614fb0768525a43c93b29db64a5e7611aa44a4f67aa9c955965794 |
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font_02_sfnt_off00009937.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9937 | 16344 bytes |
SHA-256: 9c47a8ecf7103172530608de19fa11afb8a035ab51042e9cb8c6809f09ebb189 |
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