MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded links that redirect to known malicious infrastructure, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The ML classifier and ClamAV also flagged this file as malicious, suggesting it's a phishing or trojan delivery mechanism. The document body is heavily obfuscated and appears to contain junk data rather than a user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 5
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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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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://dafemum.ru/strik?utm_term=the+story+of+oj+lyrics+nba In PDF document text
- http://forisawidokomor.sportsontheweb.net/vegetarian_diet_for_weight_loss_in_a_month.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415934/normal_601e70f50d109.pdfIn PDF document text
- https://cdn.sqhk.co/vafodagusun/haKjhVW/14204804611.pdfIn PDF document text
- https://cdn.sqhk.co/pefevepufi/09ygc21/vitojirijoturur.pdfIn PDF document text
- http://golosa-spasibo.ru/what_is_the_difference_between_2016_honda_civic_lx_and_ex7ns0g.pdfIn PDF document text
- http://mjawebdesign.net/pidezap1ciu.pdfIn PDF document text
- https://cdn.sqhk.co/kuwusemob/Cnjdbf2/international_marketing_notes.pdfIn PDF document text
- https://cdn.sqhk.co/pisomuma/yxWibc9/73382014069.pdfIn PDF document text
- http://sevezor.scienceontheweb.net/rugowokabowod.pdfIn PDF document text
- http://jogajep.medianewsonline.com/dietary_management_of_peptic_ulcer.pdfIn PDF document text
- https://cdn.sqhk.co/lewatesudo/grjeifn/fiwuginepiserubibopimu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491445/normal_605966586e9a6.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://zaduzos.myartsonline.com/definition_of_business_research.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2ae1d31b-bc67-40f3-b284-6ff388cecbce/71109416224.pdfIn PDF document text
- https://b7d3a0ae-8059-487b-8826-088776693174.filesusr.com/ugd/8d23e4_4424e9c1fac7419eb0afc3d08992f686.pdf?index=trueIn PDF document text
- https://677e6977-fc43-48b2-ac81-16e478c8573b.filesusr.com/ugd/3750c2_c456fa20f9a045c294e49d705a52d794.pdf?index=trueIn PDF document text
- https://aa84fbb7-d3ea-4675-94d1-3a2d808898f4.filesusr.com/ugd/661a84_b2f88d9566d942988378791bdfd16a50.pdf?index=trueIn PDF document text
- https://1f571a09-6495-4108-bd1a-9715deae29b5.filesusr.com/ugd/b0bf26_f1b9680e94484e218e7901b6c0912647.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/4eeb499a-0a0f-457c-b682-9f8bde4a8cd4/vapegugejinug.pdfIn PDF document text
- http://ximuxulizi.myartsonline.com/woliwizopus.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/28e1169d-95a7-4d41-b6d0-065829d15179/pesizazadutabupowofumap.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/92bf6d07-8f95-4d22-a6a5-7bff1c65785a/wijonitamipimovowowobirob.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/71495652-e790-40dd-a922-c808750df036/lirazomiwipimiterobirale.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_off0000ee9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE9E | 5236 bytes |
SHA-256: c0ba6ae8df08ff6a1b529156361724951cef0b7a856ddee493f73fbcb089e18a |
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font_01_sfnt_off00010077.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10077 | 11760 bytes |
SHA-256: c3e9f59c97987b06a219749012c733ea2cbec110068acc9b347b72f3137dcff1 |
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