MALICIOUS
284
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to disposable hosting, and one specifically to a known malicious redirector. The 'SE_CLIPBOARD_COMMAND_LURE' heuristic indicates the document instructs the user to copy content into a shell, a common tactic for executing malicious commands. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to download and execute a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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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://yafferge.ru/123?utm_term=android+studio+comment+code+shortcut In PDF document text
- http://roboludawu.mywebcommunity.org/42701917627.pdfIn PDF document text
- https://palanufijerovas.weebly.com/uploads/1/3/0/7/130739221/dogonopo.pdfIn PDF document text
- http://dejepuzalew.mygamesonline.org/17221053078.pdfIn PDF document text
- http://zugasanuko.getenjoyment.net/virginia_woolf_to_the_lighthouse.pdfIn PDF document text
- http://nekutijefaxikar.iblogger.org/baofeng_uv-5ra_range.pdfIn PDF document text
- https://bobefenore.weebly.com/uploads/1/3/4/0/134016691/dijoke_mufapujeregu.pdfIn PDF document text
- https://cdn.sqhk.co/mowanideju/xjiiige/sultan_of_tower_defense_air_forces.pdfIn PDF document text
- https://cdn.sqhk.co/duditizonut/cif5haO/gubeb.pdfIn PDF document text
- http://pofuxubilet.sportsontheweb.net/kukomog.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://uploads.strikinglycdn.com/files/a1b1fdb3-9e79-4674-9d55-5cdaf838c557/20834391343.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c2999d8e-d6fd-40b1-aeef-3d9002f306ce/ruwumotarubeg.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/8577212f-501f-4f8d-847a-57881389a9ff/the_spiritual_man_is_a_madman.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/12b67bcb-c99a-4da5-b545-82e77ce4a6f9/quotes_from_red_queen_with_page_numbers.pdfIn PDF document text
- https://bf68d742-fb98-404a-ab47-1dcf24f7df52.filesusr.com/ugd/83e7fd_385b914fe87a4496919308c7e9dd3585.pdf?index=trueIn PDF document text
- https://94db4134-5784-44c5-a63d-963e509970fa.filesusr.com/ugd/9c58c5_efbb7095db39454abac8ee4b1fa21885.pdf?index=trueIn PDF document text
- http://pujumek.myartsonline.com/el_amor_en_los_tiempos_del_colera_pelicula_completa_repelis.pdfIn PDF document text
- http://zugoxovok.epizy.com/34316957295.pdfIn PDF document text
- https://56f9ebfc-1b58-4ccd-90b9-24793863e956.filesusr.com/ugd/0f3536_a6cb09377c3b4eecb62a032e1079fbf2.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/e4fcaaaa-832a-4b37-8b58-7587bafa90db/how_to_reset_yamaha_receiver_rx-v383.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_off0000f956.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF956 | 4808 bytes |
SHA-256: 197d767467137c5b862e9fd9c23dad63e3c19ab701ad9d0fe1ecf48dd30bf178 |
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font_01_sfnt_off00010976.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10976 | 11540 bytes |
SHA-256: cfbf8820522e2df49925f3b82ababdd221b45c6ce3daadd0a6b1ce524cb03dbb |
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font_02_sfnt_off00013037.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13037 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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