MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.cc/wb?keyword=many%20gifts%20grade%204%20textbook%20pdf. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links, suggesting a lure to trick users into clicking malicious links. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a phishing or redirection attempt.
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/wb?keyword=many%20gifts%20grade%204%20textbook%20pdf In PDF document text
- http://files.pressproofcartons.com/uploads/1/3/0/8/130873876/3a8125.pdfIn PDF document text
- http://lodevanex.packupallyourdishes.com/uploads/1/3/1/3/131383657/5430599.pdfIn PDF document text
- http://files.amandaetchison.com/uploads/1/3/0/7/130775310/sujum.pdfIn PDF document text
- http://dinisule.karynpearson.ca/uploads/1/3/0/7/130739561/bc36421bffa16.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/1/0428/0749/2775/files/nms_case_files_surgery.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/7847/7976/files/camus_myth_of_sisyphus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2478/4283/files/remove_ads_from_android.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2398/3001/files/nacionalismo_mexicano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6309/1110/files/black_and_decker_20v_trimmer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7273/2836/files/87521516791.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/5890/8584/files/utorrent_not_connecting_to_peers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83406059157.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1214/5823/files/wabigasaruxipo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5003/2549/files/41199221907.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9442/4232/files/40715234659.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_off000042f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x42F1 | 5432 bytes |
SHA-256: c9560ede35ee97d8d9118464253639e3b5c41c163da60ea1c09b1d8404ae7562 |
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font_01_sfnt_off00005585.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5585 | 9612 bytes |
SHA-256: aabc69335ca1559cf01af764eb229505ff8239762d7570ef5212d8c803861808 |
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font_02_sfnt_off00007661.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7661 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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