MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous embedded URLs, with one specifically pointing to 'jacksth.ru', suggesting a phishing or redirection attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this by indicating the PDF is part of a link farm hosted on disposable domains, a common tactic for distributing malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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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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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External URI info PDF_URIPDF contains an external URL action
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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://jacksth.ru/wix?keyword=ib+english+literature+paper+1+sample+essay PDF link annotation
- http://xelasurugopu.mywebcommunity.org/engineering_workshop_materials_list.pdfIn PDF document text
- http://xufamorazogubov.sportsontheweb.net/mezababefavamuzazosatuluk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465543/normal_6032c50255fa9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386591/normal_602b9830794ae.pdfIn PDF document text
- http://vumogegotawugub.mypressonline.com/multiplication_properties_of_exponents_worksheet.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486051/normal_5fe20eee555ba.pdfIn PDF document text
- http://saletipaja.22web.org/zinaxefumerisuretaz.pdfIn PDF document text
- http://wejowadizabudex.mypressonline.com/fowamazejokujofabe.pdfIn PDF document text
- http://nomokesus.sportsontheweb.net/3668138133.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4448535/normal_5fcf014b90142.pdfIn PDF document text
- http://lujadexezusunam.22web.org/xudamoturenetugavefo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://36425c1f-c329-48aa-845d-1f8252cb45c8.filesusr.com/ugd/01d500_a392e73d434b4890bc79b8caaf1bafcc.pdf?index=trueIn PDF document text
- https://b1b0174c-961c-4936-87f6-765e1132391e.filesusr.com/ugd/6cf804_c07b101f3cbc475ea3a00124afd47f6e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/83a2c1b7-fb50-4e33-b1e0-2295b7cebf61/90482839017.pdfIn PDF document text
- https://2a07c75e-e898-48ba-b326-4cccc82d0599.filesusr.com/ugd/ff154e_2c68921c72f24becb95fdc1ed4067e85.pdf?index=trueIn PDF document text
- https://6997f972-013f-4c6f-ac95-4179ba17a557.filesusr.com/ugd/549e1a_dbb809ee97c94615a146fdb37b5bb57c.pdf?index=trueIn PDF document text
- http://pazalijof.epizy.com/vegadodima.pdfIn PDF document text
- https://9f53eded-325d-4e02-8430-7c09bd872488.filesusr.com/ugd/e04405_142ce89f02a74be7847bf26b4cb509cb.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cfd0254a-6e8c-4717-966d-68fee2556c45/kenmore_600_series_gas_dryer_not_getting_hot.pdfIn PDF document text
- https://4fe85328-8dbf-40e9-afa8-2c8d6ff8a9c8.filesusr.com/ugd/9c0842_210ca9fa319540aeade791f228a732be.pdf?index=trueIn PDF document text
- https://b32521b7-32ca-447e-9967-d27d0dce683d.filesusr.com/ugd/800b88_7ed8b6fe19d5434b822f5bfa8cd71444.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c0b5a4b2-570e-4801-96f0-6dc46186757f/the_open_window_characters_vera.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_off0000f0be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0BE | 5236 bytes |
SHA-256: fd8df252e252a865d81300a95e052dc2ee8cc6e1e655638d34eda9438ec0e6d1 |
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font_01_sfnt_off00010266.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10266 | 10336 bytes |
SHA-256: 290a2ffd65dbed78e3a1f23550f84d2363a7f4648ab0da7ff18ce8e1914a151f |
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font_02_sfnt_off000125c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125C7 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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