MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded links and text that strongly suggest a lure for phishing or malware delivery, specifically mentioning a 'complete assembly guide' and redirecting to a suspicious URL. The presence of multiple PDF links and a critical heuristic firing for malicious redirector infrastructure indicates a high likelihood of malicious intent. The ML classifier also flagged this PDF with a very high probability.
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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Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LUREDocument describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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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=the+ar+15+complete+assembly+guide+pdf In PDF document text
- http://files.wardpearsongroup.com/uploads/1/3/2/6/132681647/5723478.pdfIn PDF document text
- http://files.simplywholesometreats.ca/uploads/1/3/0/9/130969889/kiwaxamufapuw.pdfIn PDF document text
- http://files.cashflow3.com/uploads/1/3/1/8/131871704/wikafemugixa.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/1/0433/0687/7080/files/vatajimawi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83260340608.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1307/0238/files/pilurinadoruwe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8459/2805/files/begs_the_question_synonym.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2938/1791/files/xutofojumopaponujidero.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6361/4369/files/wisoxajak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0212/6751/files/fofikazokiwat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5920/7592/files/92500157304.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8851/9080/files/jojowisine.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0228/1633/files/28488966936.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7990/9030/files/88611290516.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7754/9726/files/sadamezumaviraxoraxe.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_off0000acda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xACDA | 5936 bytes |
SHA-256: bf53ed6950fe94f6f58bacd9eb661bcc63aaa211ce9bbcad342102aa358b584b |
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font_01_sfnt_off0000c0e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC0E8 | 2268 bytes |
SHA-256: 8770a9d16f6ec8ed1e04f7f31595c1fd3834ff76ff6f55291086ab87d6d749e8 |
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font_02_sfnt_off0000cafa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCAFA | 10804 bytes |
SHA-256: a8ad924f3c1aee42f510c150e0f464210ea14cdc8d53322723ed902033ff7a72 |
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