MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis point to a malicious redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://citronixdeflection.com/nbloom/fckuploads/file/xujuwa.pdf In PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/24492797438.pdfIn PDF document text
- http://nowyhotelik.pl/userfiles/file/vufenurilofamexa.pdfIn PDF document text
- http://dailycan.com/userfiles/files/vunemuvazolanakegiro.pdfIn PDF document text
- http://pk.mo/userfiles/file/kabexawaputitewowerimet.pdfIn PDF document text
- https://tierrettung-in-katalonien.org/ckfinder/userfiles/files/76906496470.pdfIn PDF document text
- http://naplesredeals.com/userfiles/files/129006812.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/161317118d35d3---zuvijiwotodepuxarefid.pdfIn PDF document text
- http://gps-tw.com/CKEdit/upload/files/lawubupukima.pdfIn PDF document text
- https://ipssecurityconsultants.com/ckfinder/userfiles/files/fopidemisetelud.pdfIn PDF document text
- http://qhzs88.com/admin/fckeditor_upfiles/file/2021091903084380554.pdfIn PDF document text
- http://vinhthuan.com/upload/files/38009385927.pdfIn PDF document text
- http://nessium.fr/userfiles/file/36349529391.pdfIn PDF document text
- http://tko.wavedev.net/img/files/files/706431717.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161390d813b183---gufaz.pdfIn PDF document text
- http://pokebarslo.com/uploads/files/57400590249.pdfIn PDF document text
- http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/61584306210.pdfIn PDF document text
- http://accapierre.it/userfiles/files/pinozuragakir.pdfIn PDF document text
- https://eminencesolutions.in/resources/userfiles/file/fesiwegek.pdfIn PDF document text
- http://xiangzhuan.tw/upload/files/7816602637.pdfIn PDF document text
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16140d46c2e232---18216529343.pdfIn PDF document text
- https://pharma-tools.eu/galeria/file/vaniteravegunuladuk.pdfIn PDF document text
- http://cdseoulps.com/uploadfile/fckeditor/file/sitenisitevupofadovedosu.pdfIn PDF document text
- https://jagominum.com/contents/files/16164464737.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=wgu+email+on+androidPDF 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_off0000b234.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB234 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA4B | 10420 bytes |
SHA-256: daece79a3fe9f83503f00907e37d6271c24859c27945096ae7c2d6471899a150 |
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font_02_sfnt_off0000e199.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE199 | 15044 bytes |
SHA-256: df08cffbfead67fbd960b54af09f927bb126253441f164eb455a1db5e7904fb2 |
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