MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, with a significant heuristic firing indicating a 'PDF link farm' designed to direct users to a large number of external PDFs. One prominent URL, 'https://nipisod.ru/123?utm_term=acls+pretest+rhythm+answers', suggests a phishing or scam attempt related to test answers. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 5
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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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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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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/123?utm_term=acls+pretest+rhythm+answers
- https://weziriditovi.weebly.com/uploads/1/3/4/1/134108838/8941835.pdf
- https://cdn-cms.f-static.net/uploads/4486041/normal_602d8f7e107d6.pdf
- https://static.s123-cdn-static.com/uploads/4449776/normal_5ff6294db6dde.pdf
- https://cdn-cms.f-static.net/uploads/4448551/normal_600eea8f3e7cf.pdf
- https://cdn-cms.f-static.net/uploads/4486035/normal_603602b7a2572.pdf
- https://xizuzumuk.weebly.com/uploads/1/3/2/6/132682261/a2c69.pdf
- https://rodazikajoreme.weebly.com/uploads/1/3/0/8/130874285/1378387.pdf
- https://zozolesib.weebly.com/uploads/1/3/4/6/134631165/8831658.pdf
- https://static.s123-cdn-static.com/uploads/4478132/normal_6000b120f0af4.pdf
- https://static.s123-cdn-static.com/uploads/4365551/normal_5ff24abbe32dd.pdf
- https://rewizefugubopu.weebly.com/uploads/1/3/4/2/134266162/jurivefunagaxumaj.pdf
- https://jixejuterekafiw.weebly.com/uploads/1/3/4/5/134508928/sutewagilasasom_dabujabot_gidunozisif.pdf
- https://cdn-cms.f-static.net/uploads/4385852/normal_6033522ad6d27.pdf
- https://cdn-cms.f-static.net/uploads/4366011/normal_5fe9b517a084b.pdf
- https://vefotufujipewux.weebly.com/uploads/1/3/4/4/134401009/9016763.pdf
- https://static.s123-cdn-static.com/uploads/4478383/normal_60062c8107658.pdf
- https://lopekemin.weebly.com/uploads/1/3/4/6/134628767/f44e4788e7.pdf
- https://lulaxakopoto.weebly.com/uploads/1/3/4/3/134331182/girumitesax-kamunudogeb-xurolubotudopeg-gatavuxomifixuj.pdf
- https://static.s123-cdn-static.com/uploads/4374847/normal_5ff7ebdba1d9e.pdf
- https://nugusogo.weebly.com/uploads/1/3/4/3/134319441/490cbdc8a1ba3.pdf
- https://vurinilobato.weebly.com/uploads/1/3/1/4/131454355/gejaw-xupag-zomisarate.pdf
- https://dojosofezi.weebly.com/uploads/1/3/5/3/135390984/zegida.pdf
- https://vojimefijizudi.weebly.com/uploads/1/3/4/3/134310580/fixiz.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://uploads.strikinglycdn.com/files/b0537cea-3b66-4c6f-bb9f-ac963a4d1334/vocabulary_sheets_for_6th_grade.pdf
- https://uploads.strikinglycdn.com/files/abf5479d-56db-43ee-b57b-6f6dd940b2e0/nalog.pdf
- https://uploads.strikinglycdn.com/files/3f6f65cd-fe3e-494f-a013-d2910bcd426e/22274411060.pdf
- https://uploads.strikinglycdn.com/files/d389ab6a-4b17-47e6-9ca1-aba29d778118/integration_of_cos_x_minus_sin_x_upon_cos_x__sin_x.pdf
- https://uploads.strikinglycdn.com/files/22611728-ab47-492d-95b7-bcb0a66dee48/dominos_cheese_burst_pizza_toppings.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef97.bin8304fd4f7e1f7d630b65702d6cd675fec86f11ec922f5006fcb822577867f33d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF97 | 5356 bytes |
font_01_sfnt_off000101b4.bin48810f1ba9ac9cad2f58553e83b44880dc007a8b5f67512996ee0b7a5ca7736a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101B4 | 10496 bytes |
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