MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics indicate the PDF functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS uploads. The presence of 'utm_term' parameters suggests a phishing or spam campaign aimed at driving traffic to potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://allytemp.ru/uplcv?utm_term=asus+transformer+book+trio+android+update PDF link annotation
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/a28def6687faf72c70ddec036dc3cd75/xobabalikokosatan.pdfIn PDF document text
- https://www.loisirs-auto-occasion.fr/ckfinder/userfiles/files/pifori.pdfIn PDF document text
- http://aminotp.com/upload/files/kesetegijofigudegur.pdfIn PDF document text
- http://www.hgbehringer.de/img/files/files/reletifazajikefebujowu.pdfIn PDF document text
- https://concurs-euclid.ro/upload/fck/99263108724.pdfIn PDF document text
- http://tainanrup.longi.tw/uploadfiles/files/20210903_105901_3136.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea83c6adb7---51402748785.pdfIn PDF document text
- http://maihome.hu/admin1/file/34624632281.pdfIn PDF document text
- http://hamdannepal.com/userfiles/file/67998339007.pdfIn PDF document text
- http://cleangroupbd.com/ck/upload/files/fobukupigijot.pdfIn PDF document text
- https://sanghvicranes.com/staging/media/larenatinedute.pdfIn PDF document text
- http://lenaoyunlar.net/calisma2/files/uploads/kixeniger.pdfIn PDF document text
- https://confidence-ist.mktechsol.com/ckfinder/userfiles/files/duziw.pdfIn PDF document text
- http://szwygs.com/upload/40009048349.pdfIn PDF document text
- http://rhondachem.com/d/files/51703994331.pdfIn PDF document text
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/a47300a6f9b858d3728ed9c721f0e7a1/munatetevekesekabis.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16130a16d79140---12419528380.pdfIn PDF document text
- https://egokituz.eus/files/galeria/files/nufedediwilaninepinuva.pdfIn PDF document text
- http://ideviceplus.nl/app/webroot/files/userfiles/files/12576825338.pdfIn PDF document text
- http://medtravel.pro/images/hand_uploaded/files/4515939496.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135455d70367---39157805000.pdfIn PDF document text
- https://luatsubienhoa.com/upload/ck/files/16513849649.pdfIn PDF document text
- http://instalace-charvat.cz/userfiles/file/rakuserimosekoxilo.pdfIn PDF document text
- https://srsatta.com/ckfinder/userfiles/files/24522668730.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_off0000e9a0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9A0 | 19764 bytes |
SHA-256: 787537584b61cc49cc0abba1e96f9a2ea63f3c2c314a0c9fb747ba76e290fddd |
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font_01_sfnt_off00011d6a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D6A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013581.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13581 | 10928 bytes |
SHA-256: 30cf2d52583014d3a67aeb60f14d261076dc741c6c279b65473609b4bd3ae32f |
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