MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with many URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO manipulation scheme. The document body was unreadable, but the presence of numerous external links strongly supports the link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://taiwanquinoafamily.com/shopadmin/upload/files/jevusagalefesefidepoful.pdf In PDF document text
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/24bb6fd48b30b35c5f39206da200f3cb/wajimilujelevipapafafe.pdfIn PDF document text
- http://soflacops.com/clients/83266/File/besavagemasuto.pdfIn PDF document text
- http://zhouzhuank.com/v15/Upload/file/202179197195584.pdfIn PDF document text
- http://dsagco.com/Upload/file/semuliwujenilule.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611447e7b19dd---32065053329.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0a48e8349---81042203925.pdfIn PDF document text
- http://poltinka.ru/userfiles/file/62619330894.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/75286709531.pdfIn PDF document text
- http://4bzsoftware.com/Images_upload/files/weziso.pdfIn PDF document text
- https://rffsev.ru/wp-content/plugins/super-forms/uploads/php/files/bee50d0d7e26be51e5de8ccf238830e6/97876079740.pdfIn PDF document text
- http://suachuabaoduongmaynenkhi.com/img_quanganh/files/kowaxevopulemiwosamedi.pdfIn PDF document text
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/d5a9120cdf5c6d380ca8fae2ff3f65f7/74885931816.pdfIn PDF document text
- https://rlmahtani.com/userfiles/files/zifowudizave.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-5-12/20210512103407838475.pdfIn PDF document text
- https://nwdglobal.com/ckfinder/userfiles/files/98761974146.pdfIn PDF document text
- http://propellerclubsandiego.org/uploads/files/tupolidosewunuf.pdfIn PDF document text
- https://ivanda-commerce.hr/userfiles/file/52385330696.pdfIn PDF document text
- https://www.xyoaa.org/sites/default/files/files/15737967378.pdfIn PDF document text
- https://suma.ca/upload/editor/file/nufubutevapadumoka.pdfIn PDF document text
- https://olympicwroclaw.pl/zdjecia/fck/file/fuwamup.pdfIn PDF document text
- http://streathamtaxi.com/survey/userfiles/files/68986153755.pdfIn PDF document text
- http://mfcwestenkwartier.nl/beta/userfiles/file/9512574481.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=calculate+the+molarity+and+molality+of+an+nh3+solutionPDF 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_off0000bdd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDD5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d5e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5E7 | 16988 bytes |
SHA-256: 452ec616de8cf3983dddff40b8ab302046d6856da5306f087b99498c0b38d5e4 |
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font_02_sfnt_off0001019a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1019A | 11160 bytes |
SHA-256: 385ff3fcec9d7e612fd6fb33a426420d6597abd13b56f59bd81c1a856be750ee |
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