MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The sample contains numerous links pointing to compromised websites, indicating a likely phishing or malware distribution scheme. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics suggests the document is part of a link farm designed to exploit search engine rankings and leverage compromised web infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9470
Heuristics 5
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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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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://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/id6n97ur1r1nujatoa70odggnl/xerixapanedoziv.pdf In PDF document text
- https://floridainvestment.cz/files/file/13072294614.pdfIn PDF document text
- http://grappin-annat-como.com/userfiles/grappin-annat-como.com/file/delunowimosudu.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/0ec9059ab03ac1a13574c4342af32329/34758389727.pdfIn PDF document text
- http://chi-kara.net/Upload/files/82140059242.pdfIn PDF document text
- http://gardensyellowcab.com/admin/images/file/64559145769.pdfIn PDF document text
- http://doggystylzgrooming.com/admin/photos/file/dumowokizuriw.pdfIn PDF document text
- http://grawerlik.pl/userfiles/file/rigojoj.pdfIn PDF document text
- https://stealthwindow.tw/uploads/files/202108230823348259.pdfIn PDF document text
- https://bursakaynak.net/userfiles/file/xojasesuma.pdfIn PDF document text
- http://uelzecht.lu/userfiles/files/rofoworetezuz.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/rjo97mo0gja45dgdq2mmdcoght/58895241920.pdfIn PDF document text
- http://iccj.jp/images/uploads/fckeditor/file/fowebolo.pdfIn PDF document text
- http://moveworldtogether.com/datas/files/zogasafagiro.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160bdf12348a89---wezakuxalemexenemoboven.pdfIn PDF document text
- http://phutungtdc.com/upload/files/73530116004.pdfIn PDF document text
- http://doanekeyes.com/userfiles/docs/vuvus.pdfIn PDF document text
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/pril7jqaonohfqaofp4478dq32/83239838856.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607171fd1343a---posexaravad.pdfIn PDF document text
- https://bilalyapidekorasyon.com/userfiles/file/vibunitupexosi.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160979992e36ac---xugana.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160878c2ee6393---40897687580.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607afcd7b2d1c---89940554525.pdfIn PDF document text
- http://hifi-markt.info/kunden/kronhardt/ckfinder/userfiles/files/zagit.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=buttercream+flowers+book+pdfPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d2c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2C4 | 17680 bytes |
SHA-256: 6a2adab71e365e9a3babb10a4a29d185aa1bbe2f3706ca7975b3afe5947d1954 |
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