MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to potentially compromised CMS upload directories or disposable hosting, suggesting a link farm designed to obscure the final destination. The 'SE_CALLBACK_LURE' heuristic further suggests a phishing or tech-support scam pretext, aiming to trick users into interacting with malicious links or content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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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://macautemple.com/userfiles/file/xazewifixosiperedu.pdf In PDF document text
- http://ltpbetel.ro/userfiles/file/memifedoxejewejano.pdfIn PDF document text
- http://hak-al.com/resimler/files/fepevinoja.pdfIn PDF document text
- http://borik.customreal.sk/data/files/18022858155.pdfIn PDF document text
- http://osoboebludo.com/ckfinder/userfiles/files/dexofibetekufigo.pdfIn PDF document text
- http://alefart.ru/admin/ckfinder/userfiles/files/45478172092.pdfIn PDF document text
- http://weiddy.com/uploads/files/202109061119167482.pdfIn PDF document text
- http://apcmagon.com/userfiles/67017370071.pdfIn PDF document text
- https://limpiezasinasel.com/userfiles/files/dalidumusim.pdfIn PDF document text
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613507dabba7e---78762954401.pdfIn PDF document text
- https://edinburghpools.com/contents/files/lixirujojesifudukutomuk.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/2845062862.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/5lrt9tktcsk1tvf3baoh9nteai/jitamojeb.pdfIn PDF document text
- https://xn--pssa17sw71b.tw/upimages/files/6301986694.pdfIn PDF document text
- http://limeitec.com/upfiles/editor/files/majeboretatis.pdfIn PDF document text
- http://moscowprice.com/content/xuploadimages/file/68909830135.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/2fb2fd275bb97043a02cff2ee55d0c53/36386805136.pdfIn PDF document text
- https://hanoihome.net/img_duhoc/files/10124718420.pdfIn PDF document text
- http://paraglider24.de/pics/fotos/1/file/58414197073.pdfIn PDF document text
- http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614cc5109a379---8387172293.pdfIn PDF document text
- https://korvioinfotech.com/ckfinder/userfiles/files/jadifizikatoweg.pdfIn PDF document text
- http://saltokisport.com/uploads/files/57199631639.pdfIn PDF document text
- https://tahitotfaluovodak.hu/ckfinder/userfiles/files/gotutiwaruxof.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=measures+of+variability+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_off0000b0fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0FD | 10800 bytes |
SHA-256: 271a7e3f12df3179b1142283382b2d98c25db184d41aa1ab215e31cb23b49a04 |
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font_01_sfnt_off0000c9d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9D4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e1e6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1E6 | 16176 bytes |
SHA-256: f8040e3c24b95ab01c427dd242856a5c3e6c1a3d31c45dd0300d8210f77f5d0d |
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