MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous links pointing to compromised CMS uploads and disposable hosting, suggesting a link farm designed to distribute malicious content. The presence of external URIs and the overall structure indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1fa528f60---tekalojatixidifusuxigunaf.pdf In PDF document text
- http://harringtonandlombardi.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77857465180.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/0a631a1d9726ba85873011b0817406b3/fepepep.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca41ad0d10---zafali.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c01d6a2e8---faviwojidu.pdfIn PDF document text
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/0275faedf96d87f7bf8d7edb769e210f/97536540206.pdfIn PDF document text
- http://tsradviseurs.nl/mailing/images/photo/file/83340861623.pdfIn PDF document text
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/9eadf3de041735b8bf53ab7938f10ffa/24924525011.pdfIn PDF document text
- http://clinicaveterinariabilancino.it/userfiles/files/15148976638.pdfIn PDF document text
- http://hilltoplancers1975.com/clients/13753/File/25633394616.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/e3104ac7696c7e254e54d31cfc50525b/tobem.pdfIn PDF document text
- http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/rikawoligopagafisa.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/qpob4oflbtq954eo7hosknebro/zebebu.pdfIn PDF document text
- http://fpole.ru/sadm_files/xejamiluk.pdfIn PDF document text
- http://lacasedescaraibes.fr/file/41913340961.pdfIn PDF document text
- http://bike-aholic.com/UserFiles/file/5852640343.pdfIn PDF document text
- http://shop-cartuning.pl/userfiles/file/rasexofogizosipeseg.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a6060c3276---zobolevajeforu.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/11jh4mp783sep4m45rlunpd8t3/dukafazewabe.pdfIn PDF document text
- https://estigotours.com/wp-content/plugins/super-forms/uploads/php/files/4788217a7b6c5029cafd3e574e4c4e81/bosogutigiruxuveguxanir.pdfIn PDF document text
- https://grup-insaat.com/userfiles/file/5307991202.pdfIn PDF document text
- http://boathousebrokerage.com/userfiles/file/5560485393.pdfIn PDF document text
- http://joewhitefamilysite.com/clients/59967/File/64115234174.pdfIn PDF document text
- http://bichvan.vn/upload/files/getupesamuwawulekarutosa.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a1f4d0b9d0f---60126313224.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=work+grievance+letter+templatePDF 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_off0000f89a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF89A | 10700 bytes |
SHA-256: bbbd0ba3704002af685dcdd3cb385381e6e0d9d270a81b54624abc5086b963ba |
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font_01_sfnt_off0001112f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1112F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012941.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12941 | 16692 bytes |
SHA-256: 303f119e3abc5e0a6825fcf1149720fb41075db2f9d4e0dc2843598d53f19475 |
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