MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to SEO-optimized URLs, indicating a link farm or redirection scheme. The primary malicious URL identified is 'https://nipisod.ru/123?utm_term=horizontal+analysis+is+performed+when', which is likely used to distribute further malicious content or phishing pages. The ML classifier and ClamAV detection strongly suggest malicious intent, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=horizontal+analysis+is+performed+when PDF link annotation
- https://timivoza.weebly.com/uploads/1/3/5/3/135315173/ximeb-ketazipax-duwefiwewir.pdfIn PDF document text
- https://bekajujoxofutit.weebly.com/uploads/1/3/1/4/131406668/8684217.pdfIn PDF document text
- https://dariwatipizodaf.weebly.com/uploads/1/3/5/3/135323996/julonosabulepezemo.pdfIn PDF document text
- http://gifozazupu.iblogger.org/48744211079.pdfIn PDF document text
- http://roxifij.22web.org/84456586054.pdfIn PDF document text
- https://kodalisurodufe.weebly.com/uploads/1/3/2/6/132680932/5491980.pdfIn PDF document text
- https://daliroxemonove.weebly.com/uploads/1/3/0/7/130775241/e595768e2a90b0d.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://s3.amazonaws.com/liwafo/wolemotisigiwudef.pdfIn PDF document text
- https://s3.amazonaws.com/fedure/minority_report_novel_summary.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/65a9d57b-194c-4c59-9c20-be9c2a2c8c7e/67940833007.pdfIn PDF document text
- http://runumebutevota.rf.gd/helene_cixous_the_laugh_of_the_medusa_amazon.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88a018d8-a1a9-4bc7-b313-59a16b3c47f8/81406501593.pdfIn PDF document text
- http://jupetovujek.epizy.com/xevasilo.pdfIn PDF document text
- https://s3.amazonaws.com/sorogamat/75870311770.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/32304f3e-61c0-4e83-9cff-2277aa47932e/90589761495.pdfIn PDF document text
- https://s3.amazonaws.com/bepukuba/pusidojovasurutupufo.pdfIn PDF document text
- http://lojawesepex.rf.gd/29407724912.pdfIn PDF document text
- http://kunibenurupamiv.rf.gd/xemolewabelezekafop.pdfIn PDF document text
- http://jogebelofes.epizy.com/siduraximo.pdfIn PDF document text
- https://s3.amazonaws.com/nowokil/vilud.pdfIn PDF document text
- http://vujiwexamofone.rf.gd/btec_level_3_performing_arts_resources.pdfIn PDF document text
- https://s3.amazonaws.com/dazinibonofobi/bedtime_stories_with_pictures_for_toddlers.pdfIn PDF document text
- http://repofifimi.epizy.com/black_screen_video_status.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_off0000eee5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEE5 | 5276 bytes |
SHA-256: 03e708aeb184cc8294ad735f2fb4fc7d957c70e0477badbb260151641a50ddb9 |
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font_01_sfnt_off000100bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100BF | 11316 bytes |
SHA-256: b9adbad96090b13893d0e599ba0c1bb4c88af9a763a1a5c29a64c7f7166c4482 |
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font_02_sfnt_off0001279f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1279F | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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