MALICIOUS
186
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting it functions as a link farm. The primary URL, https://nipisod.ru/strik?utm_term=public+speaking+topics, is likely part of this scheme to redirect users. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of phishing or ad-fraud tactics.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://nipisod.ru/strik?utm_term=public+speaking+topics PDF link annotation
- http://vemudebanaj.22web.org/59689891851.pdfIn PDF document text
- https://cdn.sqhk.co/babakobesuxe/2PGSShd/comedy_central_roast_of_rob_lowe_full.pdfIn PDF document text
- https://cdn.sqhk.co/masamiwe/Th11P4B/vujavutepevijizefazoderir.pdfIn PDF document text
- https://cdn.sqhk.co/fuwufupi/EYppjdw/minecraft_hopper_sorter_bedrock.pdfIn PDF document text
- https://cdn.sqhk.co/vexorikodo/jigjdie/wabibekotidubinuzujor.pdfIn PDF document text
- http://gemotebefid.22web.org/adidas_men_s_trousers_size_guide.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4497372/normal_606aebf064071.pdfIn PDF document text
- https://lepoboniw.weebly.com/uploads/1/3/0/9/130969744/napok.pdfIn PDF document text
- http://saxefitipar.iblogger.org/47721088694.pdfIn PDF document text
- http://jigatinapa.22web.org/reading_and_writing_about_literature_gardner.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379731/normal_601daf6984a1e.pdfIn PDF document text
- https://cdn.sqhk.co/rizijuwet/DidgdTK/36242816931.pdfIn PDF document text
- https://pokiwaminexaga.weebly.com/uploads/1/3/1/6/131637240/xutuzolodajozut_koxebivugipe_dopajo.pdfIn PDF document text
- https://javimitama.weebly.com/uploads/1/3/4/3/134349319/1e68743caefb8.pdfIn PDF document text
- https://juxeduwabup.weebly.com/uploads/1/3/0/7/130775558/fe93e8.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/cc352ebc-af49-42ec-abde-3476444620a1/45770737923.pdfIn PDF document text
- https://121f8fc1-d270-4171-a721-8ccd656fc20f.filesusr.com/ugd/2ca22b_c87129ef87d8424c92fe02b652f099de.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/7bbf124d-1a8b-4fab-a238-7d4b0d3f2aa0/madame_bovary_movie_2000_cast.pdfIn PDF document text
- https://85fc0914-20e3-4f1c-be8c-de7e6f89f47e.filesusr.com/ugd/a44510_28c3da23386b435a91946ebadbdbb95e.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/6a2da818-2576-4b14-81a5-411f52cb75b1/91052573620.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/ff68f3d1-f016-4dac-a4c3-55f9f328827e/34368288879.pdfIn PDF document text
- http://jeriputagipebik.rf.gd/14205411677.pdfIn PDF document text
- https://ec2d952e-5494-46d8-b841-fee222248b17.filesusr.com/ugd/9713d5_28157d3a890e46858e9315792e2cd16a.pdf?index=trueIn 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_off0000f35e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF35E | 5212 bytes |
SHA-256: aa8ca5dba0fa9e5b7861f5db1201732c7863bb995f3cb52fe3c28b5bedd9690f |
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font_01_sfnt_off00010530.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10530 | 10184 bytes |
SHA-256: d557d0a979d16e0c29d1b8c9e5a26108fbe69890c8432791c9c459c5170e4e73 |
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