MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links pointing to various PDF files hosted on SEO-optimized domains. One of the primary links redirects to a known malicious redirector, suggesting a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness.
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=manual%20siconv%20ajuste%20plano%20de%20trabalho In PDF document text
- http://files.vk3sn.net/uploads/1/3/1/8/131871894/d40f274a4b81b4.pdfIn PDF document text
- http://files.nrisa.org/uploads/1/3/0/8/130874307/6503910.pdfIn PDF document text
- http://files.groundedlearning.com/uploads/1/3/0/9/130969532/2435414.pdfIn PDF document text
- http://files.crlangille.com/uploads/1/3/0/7/130775520/movefu-sipaziguxu.pdfIn PDF document text
- http://files.thirdcinemaproductions.com/uploads/1/3/1/3/131379749/sonazez.pdfIn PDF document text
- http://files.mplsalpineski.org/uploads/1/3/0/7/130775341/lekafinigijuwupob.pdfIn PDF document text
- http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.pdfIn PDF document text
- http://files.iwfgeorgia.org/uploads/1/3/1/4/131455883/dofez.pdfIn PDF document text
- http://files.jjeffreymesserole.com/uploads/1/3/1/3/131384018/f3faf9c41e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://womonuxad.files.wordpress.com/2020/06/17415223723.pdfIn PDF document text
- https://lobetaxaj.files.wordpress.com/2020/07/tebimolemudugujopezil.pdfIn PDF document text
- https://zaxogetareko.files.wordpress.com/2020/07/zuxokumuxifufadobe.pdfIn PDF document text
- https://zunuxav.files.wordpress.com/2020/07/sajel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gefoviliruvowej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dovaxetudomorunuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovaje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58097506778.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/59022585862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/texirid.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_off0000e018.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE018 | 5324 bytes |
SHA-256: df8d0c35c5793809c9c9801c764b5ca919e90f6ef7a2dfd7827be121b2f33c2a |
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font_01_sfnt_off0000f224.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF224 | 13824 bytes |
SHA-256: 17b33b9520d46c7435dcc77e5e6a711e82a779df82365d472e1b6f4be88e9f78 |
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