MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, with several pointing to compromised CMS upload storage or disposable hosting. While no executable scripts were extracted, the structure and URL patterns are indicative of a phishing or malware distribution lure, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://adsbudget.net/userfiles/file/46562523850.pdf In PDF document text
- http://helenhotel.vn/upload/files/gomufozuwenijan.pdfIn PDF document text
- http://giasudaihocsupham.com/Images_upload/files/tozaresimajog.pdfIn PDF document text
- http://haiannweb.com/uploads/files/51682757128.pdfIn PDF document text
- https://0a3exp.com/upfiles/editor/files/56072924754.pdfIn PDF document text
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/16140930e0e3a0---kiteranifolepaloforuj.pdfIn PDF document text
- http://rideco.hu/upload/file/25659888037.pdfIn PDF document text
- http://fkm-lux.by/var/upload/file/62610586315.pdfIn PDF document text
- http://trongtinpc.com/luutru/files/runadasaxi.pdfIn PDF document text
- https://at1apigroup3.com/contents/files/mopubagadokama.pdfIn PDF document text
- http://gianphoiduyloimodel.com/Images_upload/files/37086781829.pdfIn PDF document text
- http://kayapalinakliyat.com/file/wajutiroditujurarib.pdfIn PDF document text
- http://sameiroeventos.pt/ficheiros/69118959897.pdfIn PDF document text
- https://fullprotec.com/ckfinder/userfiles/files/11704998263.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/610ldb6ojfpnsa7sb0lsljklj2d26hak/tuxabasevilasuvam.pdfIn PDF document text
- http://topoint.cc/userfiles/fckFile/20210923110110.pdfIn PDF document text
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/25pdun7oehnekt10d1gegmb8u4/gaxow.pdfIn PDF document text
- http://khyljg.com/uploadfiles/files/ruwukujixesoxal.pdfIn PDF document text
- http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614082eb705ed---15730723841.pdfIn PDF document text
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/igidu7kgp70ndg8mjv85r040p4/92287587547.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140cefd745cf---95421477663.pdfIn PDF document text
- https://bgg.pirkitpadangas.lt/ckfinder/userfiles/files/26010540631.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+add+obb+file+to+apkPDF 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_off0000b3c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3C4 | 10428 bytes |
SHA-256: 01db896ad79abd773b2c5eb1c1bdfd990273cf1fb9faa611f80c67ff28a6fa19 |
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font_01_sfnt_off0000cb4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB4D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e35f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE35F | 18124 bytes |
SHA-256: f4c983759c8ce0d1ec878fd0ea297accecf987618ea6e16fdf97657e8b3df840 |
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