MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and uses an image-based lure. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
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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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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 2 text block(s), carries a click-outward action, and is only 67 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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 http://mentor-tutor.com/newGroserLikeProject/uploads/files/47491883536.pdf In PDF document text
- https://www.orthovision-lublin.pl/ckfinder/userfiles/files/33093546891.pdfIn PDF document text
- http://tatugigo.com/ckfinder/userfiles/files/5076873063.pdfIn PDF document text
- https://kfmaccounting.com/webroot/img/content/files/98326365225.pdfIn PDF document text
- http://hopkim.vn/upload/files/37488971970.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2022b57d3---37680102556.pdfIn PDF document text
- http://boxshop.mn/userfiles/files/91200472647.pdfIn PDF document text
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/16130a1d3f30ac---naxumetusijazu.pdfIn PDF document text
- https://jeanmarcrobion.fr/userfiles/file/99885368661.pdfIn PDF document text
- https://dhesient.com/media/84834749503.pdfIn PDF document text
- http://tele-klass.ru/i/upload/files/mejil.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/840bf85286e5e0fd33d8244d1e86526d/bizemitoz.pdfIn PDF document text
- http://hacoauto.vn/upload/files/89232576628.pdfIn PDF document text
- http://stainless-faucet.com/uploads/htmlupload/files/41245600829.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613d2b2458513---87128546508.pdfIn PDF document text
- http://xn--o79av69abka850ab6c.com/upload/file/202109010957373831.pdfIn PDF document text
- http://zentrumok.com/userfile/files/zulerenilogisaseberegar.pdfIn PDF document text
- http://myepres.com/HotelEstimator/userfiles/file/buzuji.pdfIn PDF document text
- http://lex.tj/img/file/sugifupevakem.pdfIn PDF document text
- https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/limonilebenosux.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=40+day+love+dare+pdfPDF link annotation
- 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_off0000adb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADB4 | 14248 bytes |
SHA-256: 27c2c1277f63a95b4a3c4cf90da26495b6721807bfe0a0278cc8c58ae9b327a5 |
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font_01_sfnt_off0000d13b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD13B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e952.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE952 | 10312 bytes |
SHA-256: 13bf28c6d3235c15af4895b9020914027897d5062daa0efb10865930254e1c16 |
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