MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links to compromised WordPress uploads and disposable hosting sites, suggesting a link farm designed to redirect users. The PDF structure and embedded URLs point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://foto-preiss.at/upload_files/files/79465395918.pdf In PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076a6c9ac079---31729073880.pdfIn PDF document text
- https://gbeequestriansurfaces.com/wp-content/plugins/super-forms/uploads/php/files/gjd4k63el0628bih6m0m8porhk/8293391034.pdfIn PDF document text
- https://aykutemlak.com/upload/ckfinder/files/xafotesuzodawopopegikex.pdfIn PDF document text
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/f86fe1a4996702245ceecc803625b618/rasafinumisokatebujadajur.pdfIn PDF document text
- http://ohdiabo.net/images/ckeditor/files/83721241194.pdfIn PDF document text
- https://indobaliart.com/sitefiles/file/80686940897.pdfIn PDF document text
- http://larben.cz/media/images/upload/file/1766145728.pdfIn PDF document text
- https://cakenepal.com/userfiles/file/dejatedotoworid.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609474c9527e0---96725712369.pdfIn PDF document text
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607927db3b249---53620932731.pdfIn PDF document text
- https://questyme.com/userfiles/file/botifa.pdfIn PDF document text
- http://bjxbw.cn/userfiles/file/36576674376.pdfIn PDF document text
- http://geodez.com/pliki/file/sekarowerapapukufu.pdfIn PDF document text
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/304ef77affeafbbabe614c013a53b2ab/balen.pdfIn PDF document text
- https://securitydm.rs/slicice/file/vaniwi.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1611a96e8cbb5c---ditelodetiboxarobafeso.pdfIn PDF document text
- http://abwpetersburg.com/uploads/files/wapaserovuvanizaju.pdfIn PDF document text
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1610840e2245d3---vofuliboze.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/160815f523ce2d---28743826496.pdfIn PDF document text
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/i87fh65qfd6uluajnbp7r4fnf1/fufunexudajonabirek.pdfIn PDF document text
- http://vitalenzyme.com/uploads/fckupload/file/7180175668.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16097f891d109b---texewoduvariroxip.pdfIn PDF document text
- http://rayocazar.com/images/elfinder-1.1/files/file/50846017817.pdfIn PDF document text
- https://jkmart.net/FCKFiles/File/tubete.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=all+trigonometric+formulas+for+class+12+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_off0000bfba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFBA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7d1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7D1 | 11216 bytes |
SHA-256: 87a31a239632640e926a5b8b771d97fc93115a469d7ca0aecb7d4563032cfbb4 |
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font_02_sfnt_off0000f1f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1F5 | 17140 bytes |
SHA-256: a0e66d08a73e40912f71edf4867eca3e87ae0f0fa141048eebb61cdeb3650e94 |
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