MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though partially corrupted, suggests a lure related to an 'aw139 maintenance manual pdf'. The presence of a link farm and the ML classifier's high confidence score further support malicious intent. The primary attack pattern involves redirecting the user to malicious infrastructure.
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.ru/pify?keyword=aw139+maintenance+manual+pdf In PDF document text
- http://files.mgracetransitions.com/uploads/1/3/2/6/132683088/nuvoxufamesas.pdfIn PDF document text
- http://papoxuro.aymestreyschool.com/uploads/1/3/1/3/131398020/7114765.pdfIn PDF document text
- http://xezinuru.artdecuivre.net/uploads/1/3/1/4/131407148/kakamezebejagigexu.pdfIn PDF document text
- http://lafajamex.elizabethashdown.co.uk/uploads/1/3/1/8/131857054/nudoxuteri.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/1/0431/0482/9589/files/93170043004.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9496/6436/files/65988091947.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2133/4690/files/defizolakilebatan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2487/5674/files/25309587599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38659434623.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7066/8453/files/bsc_chemistry_syllabus_tribhuvan_university.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3142/8248/files/18135890533.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1884/4322/files/23947003991.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31082235151.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6237/8152/files/rirojazup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6341/9814/files/17598506551.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4539/4331/files/ag_lafley_playing_to_win.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4721/4486/files/humana_military_patient_referral_authorization_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3348/1636/files/basic_electronics_dover_books_on_engineering.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_off00006a3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A3A | 5480 bytes |
SHA-256: 6b5fda2f4c9237bc0855eba31ed33810d5583c0ff45a29c624c006f73cf501d3 |
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font_01_sfnt_off00007cda.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7CDA | 10136 bytes |
SHA-256: 1ab555a64581cbd15843a274b6ac3fc0e5726a375b4d3a906856e5b8ed3fdbb4 |
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