MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some hosted on compromised WordPress installations. The presence of numerous URLs, many with 'utm_term' parameters, suggests an attempt to drive traffic for malicious purposes, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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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://ketchas.ru/uplcv?utm_term=clean+memory+android+tv+box PDF link annotation
- http://studiotecnicofrisoli.com/userfiles/files/40258997948.pdfIn PDF document text
- http://akekaluck.com/ckfinder/userfiles/files/65479925196.pdfIn PDF document text
- http://ovartec.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130938c67e3d---popirapeta.pdfIn PDF document text
- https://delcinfo.ru/img/files/files/milijuwilobikajepas.pdfIn PDF document text
- http://euro-ex.com/images/blog/file/64285792982.pdfIn PDF document text
- https://dennismaloney.ca/upload/editor/file/78309395038.pdfIn PDF document text
- http://greenflameenergy.com/userfiles/file/karonofeno.pdfIn PDF document text
- http://eiak.org/upload/editor/files/wekiripe.pdfIn PDF document text
- https://ladangmimpi2.com/contents/files/zozilewe.pdfIn PDF document text
- https://ontech.vn/images/ckeditor/files/50122692896.pdfIn PDF document text
- https://anitt.in/ckfinder/userfiles/files/burinobiwexexukadewawut.pdfIn PDF document text
- http://sanzmendia.com/userfiles/files/47269979668.pdfIn PDF document text
- http://copy-office.it/userfiles/file/29267394458.pdfIn PDF document text
- http://ristoranteyuri2.com/userfiles/file/debifof.pdfIn PDF document text
- https://nhahangbienhaitien.com/uploads/files/wepopilumamebowirobevore.pdfIn PDF document text
- http://bayernglobal.de/userVZ/file/xigasan.pdfIn PDF document text
- http://cinebuzz.be/uploads/userfiles/files/21088768930.pdfIn PDF document text
- http://decaiyun.com/upload/file/210904180549196192921doex7rrhv.pdfIn PDF document text
- https://bliznacite.dvsportbg.com/files/zusirosovapekalezus.pdfIn PDF document text
- http://xn--80aejmo0alc.xn--p1ai/ckfinder/userfiles/files/85812226561.pdfIn PDF document text
- http://ser-buk.com/userfiles/file/vusugaratugelopome.pdfIn PDF document text
- https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/f3d6e0932e4b140ff34ab6a18b6487b4/vobewupofazute.pdfIn PDF document text
- http://chocoenglish.com/_UploadFile/Images/file/bebabapuba.pdfIn PDF document text
- http://redeyeldn.com/userfiles/file/soniravar.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/161396deb38897---9469033014.pdfIn PDF document text
- http://pravkniga.ru/files/userfiles/files/34435574995.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_off0000d8b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f0c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C9 | 17304 bytes |
SHA-256: 5d3dbff0f9766e880dedb97372456bfc82a23a82a9568658f0ee664767f7388e |
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font_02_sfnt_off00011d8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D8D | 10692 bytes |
SHA-256: ae55f5db9f82d56fc748d35315f7c07d203301f4c8a1ffafe0969ce63dcf57fb |
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