MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The heuristics indicate it functions as a link farm, directing users to various compromised WordPress upload storage locations and disposable hosting sites. The 'SE_CALLBACK_LURE' heuristic specifically suggests the document is designed to trick the user into calling a phone number, a common tactic in callback phishing and tech-support scams.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083fc8731a25---banazawuletulokexubad.pdf In PDF document text
- http://aloeverajuice.cz/files/file/43821350606.pdfIn PDF document text
- https://topclassgreenery.nl/images/file/19055378688.pdfIn PDF document text
- http://associatedreclaimed.com/userfiles/files/80035014578.pdfIn PDF document text
- http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d022228083---jowobemixifapumakalexen.pdfIn PDF document text
- http://doo-san.com/userfiles/file/20210515164458.pdfIn PDF document text
- https://kingcarmotorista.net/uploads/files/zarimuvuzofa.pdfIn PDF document text
- https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/b2c4c29488a5fd831ce7cdc3945978bd/3763041860.pdfIn PDF document text
- http://stellarp.com/userfiles/files/11767888291.pdfIn PDF document text
- http://interiorconsignments.com/media/file/95157908870.pdfIn PDF document text
- http://glamour-nsk.ru/ckfinder/userfiles/files/fotabageje.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ef875ece08---9963625647.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16073361678cff---91120027842.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a288b74e5dd---20525921256.pdfIn PDF document text
- http://abwvictory.com/uploads/files/82451854688.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/puwuloxozeg.pdfIn PDF document text
- http://salocchi.it/userfiles/files/30749712467.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/ebe4a5138793e7243ee044a4bf4d7044/vodizanasogebilasenag.pdfIn PDF document text
- http://benetworkingpro.com/ckfinder/userfiles/files/88099556240.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608248b511c18---2533368884.pdfIn PDF document text
- http://helloslow.com/data/userfiles/files/77790873596.pdfIn PDF document text
- http://barcabianca.eu/upload/file/kufoguluvurafefegemobi.pdfIn PDF document text
- http://benrassam.com/uploads/files/85540921966.pdfIn PDF document text
- http://www.irrv.org/uploads/files/belupubemeguziv.pdfIn PDF document text
- https://backcountryplayground.com/wp-content/plugins/super-forms/uploads/php/files/d429b14de063d6fbb57cdb62eca3d5e6/96227624677.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=convertpdftoword.net+is+legitPDF 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_off0000d356.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD356 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eb68.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB68 | 17324 bytes |
SHA-256: 105a0a1678b6054cd4fefa6afa4d49ad754e58265e4303b4f19d15bdc1f9aee2 |
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font_02_sfnt_off00011824.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11824 | 10760 bytes |
SHA-256: 79296abbe4fc8a37fb6f889b25b2a25ce50e5348285b9761cd690c1732ce5db9 |
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