MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a redirector URL. The ML classifier also strongly flagged this PDF as malicious. The presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://cctraff.ru/strik?utm_term=fortnite+christmas+anthem+lyrics In PDF document text
- https://cdn-cms.f-static.net/uploads/4465136/normal_5fa7c596a1509.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374374/normal_5fa7e46d1c58f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373241/normal_5fb27e3673afc.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416144/normal_5fc4154b4e56a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379374/normal_5f9a1ef5ded00.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491673/normal_5fad9e4c1f85b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446494/normal_5fc7c6e1c2e3c.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4469623/normal_5fa92a6253956.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384464/normal_5f8c47e44a830.pdfIn PDF document text
- https://sebanibukuj.weebly.com/uploads/1/3/4/3/134354661/sojuxixadowuxume.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367921/normal_5f9aba0d38c55.pdfIn PDF document text
- https://xamudoniganotew.weebly.com/uploads/1/3/4/5/134509964/fufavop-birezos.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4428341/normal_5fafdf0c6e9c2.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/5d59c6c5-1103-4684-987f-a32e055d4f71/31130197695.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b6ad1c80-fe1b-4d0b-b248-bfa577267ad7/dice_bag_pattern_sewing.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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d056.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD056 | 5096 bytes |
SHA-256: 0edbeb769d05c404028c3b7134483c7a51ba077fa89a399d84231211f060ebfb |
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font_01_sfnt_off0000e182.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE182 | 3720 bytes |
SHA-256: a7c194c348f4bc26aad06ae1fa1eadf76503a3aca856ff80314c3d87a816eea9 |
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font_02_sfnt_off0000ece2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE2 | 10252 bytes |
SHA-256: b4fb5a271523fe902257b59e88adb0fc60a0cb458fa651b157543350f742d337 |
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