MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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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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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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://xajibur.ru/strik?utm_term=integral+of+x%255E2+cos%2528x%255E3%2529+dx PDF link annotation
- http://am-sound.ru/zukilemaif1d8.pdfIn PDF document text
- http://itdiscounts.info/what_is_the_best_whirlpool_washer_to_buysybn4.pdfIn PDF document text
- http://osummer.space/42583112785dqz5z.pdfIn PDF document text
- http://scrlt.xyz/xopix5b9pv.pdfIn PDF document text
- http://lalat.space/mijawolimegakidaruwscpow.pdfIn PDF document text
- https://jitebemaduk.weebly.com/uploads/1/3/4/6/134692965/7848192.pdfIn PDF document text
- https://pilogowizimofog.weebly.com/uploads/1/3/4/6/134604263/worumiz_bamolanatamoz_lufijolis_sudolapolemogom.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://ff19a39e-637c-4fc6-80cc-750024e8dd37.filesusr.com/ugd/d217e2_8f32d5007a494002a17aba1a64974cd4.pdf?index=trueIn PDF document text
- https://5b5cf7c4-d983-4e27-bd54-44d52fc9074e.filesusr.com/ugd/2f9450_f4b2e7b3c3b042408ccc5e42284f81a4.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/be68c2b3-adf0-4e1e-8c39-e4b0d53127d4/sueo_de_una_noche_de_verano_william_shakespeare_resumen_corto.pdfIn PDF document text
- https://22fea36a-5e19-4af1-b4aa-fe6e1efe0ee9.filesusr.com/ugd/b5a188_9f8f72a1de28406b9176c5aa23a370a1.pdf?index=trueIn PDF document text
- http://bunopudo.rf.gd/charlie_chaplin_2_songs_video.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b9423d98-9bed-43b3-a61c-a60a5ee394bc/beginning_programming_with_java_for_dummies_5th.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2b81ae28-cf64-490c-abe2-58311dfe9263/tabasa.pdfIn PDF document text
- https://926da24b-d3df-4aea-ac1b-ebdf7359a9e7.filesusr.com/ugd/fef925_f2e366d9aa784854b809a6d3e1b7b4bb.pdf?index=trueIn PDF document text
- https://7fad2989-91b8-457c-89bc-9a0e7aeef19f.filesusr.com/ugd/b03ff3_c5ef384f11a9442caaaf481cf4d32685.pdf?index=trueIn PDF document text
- http://bojogidolivowes.epizy.com/93282452189.pdfIn PDF document text
- https://141ebdc9-a3c9-4c6d-b8f9-366dbf139dec.filesusr.com/ugd/46bfb0_c78031c2c9454a29a4223f201a17f25c.pdf?index=trueIn PDF document text
- https://2a984544-7cb8-4a4d-9f60-e686f7994e39.filesusr.com/ugd/1434d3_81cea442891a4449b78f77e5d6e8ef20.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/0b3b60bc-34d4-4adc-a436-f1a9d01bf947/13315698747.pdfIn PDF document text
- http://tegixatinudebof.rf.gd/sikuvenesilavas.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d6f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F3 | 5696 bytes |
SHA-256: 791e4aa7b4ec05ca791861e563f2e33c8ac1890cc186850fe8de77c12efaa58c |
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font_01_sfnt_off0000ea89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA89 | 11600 bytes |
SHA-256: 9f5c620f186ae9ee55c8e4734595b11468733de7b5466881c516260b805ac35f |
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font_02_sfnt_off0001124d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1124D | 16080 bytes |
SHA-256: e3d583ca8131484f6b7e9991674a220a85ec8466745261d702706f92b0246cac |
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