MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with external URIs pointing to domains like smidgel.ru and iuoooo.com, often associated with phishing or malware distribution. The presence of a compromised CMS upload link further supports the malicious nature of the document.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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://smidgel.ru/uplcv?utm_term=play+store+free+download+for+pc+windows+7+ultimate+32+bit PDF link annotation
- http://iuoooo.com/filespath/files/20210905175708.pdfIn PDF document text
- http://bukharageorgia.com/sites/default/files/file/kazejasakiz.pdfIn PDF document text
- http://reicar.dk/userfiles/file/54656351751.pdfIn PDF document text
- https://funcarele.com/ckfinder/userfiles/files/daris.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16134967b43524---wevusuramejuzowotupi.pdfIn PDF document text
- http://shengnabei.com/uploadfile/file///2021090313035917.pdfIn PDF document text
- https://dintek.eu/uploads/file/48179959558.pdfIn PDF document text
- http://ranczowdolinie.com/files/73583555937.pdfIn PDF document text
- https://omegaplus.bg/uploads/pages/files/30298276196.pdfIn PDF document text
- http://aan.kz/ckfinder/userfiles/files/kodidokomuginapabopujugo.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/22220627617.pdfIn PDF document text
- http://ingore.cn/upload/files/vezimikevoxovomikodutipa.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138cdf824c36---zogadazuz.pdfIn PDF document text
- https://buyafranchise.org/files/files/51804819535.pdfIn PDF document text
- http://nbc.com.vn/ckfinder/userfiles/files/nanubikaxuxexemagaju.pdfIn PDF document text
- http://hizirferforje.com/admin/fckeditor/editor/images/file/80123806339.pdfIn PDF document text
- http://parbatsamajjapan.com/img/files/files/27292656129.pdfIn PDF document text
- http://robalton.es/Albums/images/file///86692983856.pdfIn PDF document text
- http://acmemask.com/upfiles/editor/files/jarolufuvegawowe.pdfIn PDF document text
- https://owop.challengersports.com/userfiles/files/26624957290.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/7144931460.pdfIn PDF document text
- https://interstudy.net/userfiles/file/tagafitaguregiretom.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/a6ca78d1394e6bfad2dcf93a9a1aa3b8/gutox.pdfIn PDF document text
- http://shangyi-pump.com/uploads/file/091844543397.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613de3c9da950---72801511969.pdfIn PDF document text
- http://goldartline.ua/userfiles/file/zebasaf.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://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_off0000dd74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD74 | 11564 bytes |
SHA-256: e237f254b7b970be9f8bad91b14d22bc1d0061af5e155a847b6f8c6a867f9603 |
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font_01_sfnt_off0000f8eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8EB | 17800 bytes |
SHA-256: 3e3e366d23930fa873fa713fc465574646fe1a72afc750fb8d064e81267bf4ce |
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font_02_sfnt_off00012736.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12736 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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