MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is a PDF identified as malicious by ML classifiers and ClamAV, with heuristics indicating it functions as a link farm. Several extracted URLs point to compromised CMS upload directories, suggesting an attempt to host or distribute malicious content. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly supports a phishing or malware distribution vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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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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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.startservis.sk/novy/ckfinder/userfiles/files/47467810842.pdf In PDF document text
- http://studiospazioambiente.it/userfiles/files/19033950775.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/30833310341.pdfIn PDF document text
- https://fokusmedia.com/images/uploads/15676957834.pdfIn PDF document text
- http://megamento.com/_UploadFile/Images/file/52821128465.pdfIn PDF document text
- http://www.lentilles-progressives.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161344e2d522da---nigixenavi.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/6dcec44886acdc9d916a54379ea10a72/65478665990.pdfIn PDF document text
- http://nhakhoanhantin.com/media/ftp/file/mumuxefumokodet.pdfIn PDF document text
- https://mobilaide.com/upload/editor/file/50905069675.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614247cd528de---8316254694.pdfIn PDF document text
- http://watch62.ru/files/files/zezobixobunojakovejad.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/6161151143.pdfIn PDF document text
- https://relans-nn.ru/images/docs/file/xuxivepixafakazijob.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/1613f34d33d509---75531979696.pdfIn PDF document text
- https://www.tahitotfalu.hu/ckfinder/userfiles/files/54702810840.pdfIn PDF document text
- http://colorsoftexas.com/ckfinder/userfiles/uploads/dexafapawiro.pdfIn PDF document text
- http://travelshops.pl/userfiles/file/jedetivibikuremefolalijor.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b7a9627368---ruzepolamekiwopukilosukup.pdfIn PDF document text
- http://haithuanphat.com/uploads/files/sinijogupixisexoko.pdfIn PDF document text
- http://jingkangchem.com/upload/files/xukumotixifagevijepabasix.pdfIn PDF document text
- https://tonwen.org/userfiles/file/tuxivevibiva.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=pokemon+black+2+japanese+romPDF 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_off0000b387.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB387 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB99 | 16416 bytes |
SHA-256: 0e1a4a223d711de6fae6483a118f2365d4b9a0996019002a70bc1abe3a2a9a22 |
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font_02_sfnt_off0000f5ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5FF | 10828 bytes |
SHA-256: df6feb2facaf56f681f246dc672eeacd4c0f29e47e3fbec0c76aa8f6450eb4bd |
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