MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links to external websites, many hosted on compromised WordPress sites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of 'eftps tax payment worksheet' in a URL parameter indicates a lure for tax-related phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://flagrant-desir.com/userfiles/file/monexa.pdf In PDF document text
- https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/e49s1fql4vauj9ukjegtpq0281/bedurarozepimiruv.pdfIn PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/64bec86fcb93cd8ec40ca100db9721b4/munofiso.pdfIn PDF document text
- https://www.sacda.org/wp-content/plugins/super-forms/uploads/php/files/futecf1fasvr8i9em9n87k8jm7/24680488516.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/kabebu.pdfIn PDF document text
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/q5vqsice3vftboke9ustkmb480/bevivigewanilewipaxe.pdfIn PDF document text
- http://ags-sib.ru/ckfinder/userfiles/files/xaxawexafitowujikojolalod.pdfIn PDF document text
- https://www.federatedlighting.com/wp-content/plugins/super-forms/uploads/php/files/5dd0ad652149b5a6a923ada43f92bd5e/meludo.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5090240a2---33426539458.pdfIn PDF document text
- https://careersourceokaloosawalton.com/files/public/57329578858.pdfIn PDF document text
- http://innovatepc.com/userfiles/file/24474980434.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/a19a146c815880899f06f5930c8befaa/mizuweza.pdfIn PDF document text
- http://erex.hu/upload/file/97263215261.pdfIn PDF document text
- http://tantusmarina.com/UserFiles/file/dizixaxiwaponarafizis.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a2a92e6ea0b---menekalut.pdfIn PDF document text
- http://inannamsao.com/uploads/files/kidivuk.pdfIn PDF document text
- http://www.ausafrica.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b7b594896cb---86763925781.pdfIn PDF document text
- http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zibemomasuvupup.pdfIn PDF document text
- http://studiomistretta.com/userfiles/files/63420250113.pdfIn PDF document text
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/aef8ca95688a08505936aeabbf16090d/besidokosevaf.pdfIn PDF document text
- http://cesishotel.com/res/wysiwyg/file/rixexepix.pdfIn PDF document text
- http://csc-021.com/userfiles/file/20210707021038_s8pfe8.pdfIn PDF document text
- https://fruzsiflame.hu/userfiles/file/najemevom.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16070ea9715512---70461546898.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/69cec597ee55a980969a670abb9e6688/83823155675.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=eftps+tax+payment+worksheetPDF 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_off0000ce6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE6B | 18076 bytes |
SHA-256: 8bbd31635aff538c5d238c1f974371116a976abcc501575a5759b8f7700d26e6 |
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font_01_sfnt_off0000fd3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD3C | 10864 bytes |
SHA-256: 824d84d9378cbcd3f59777beac288912c41d86bb17dde28c95707d8ca6c42e1f |
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font_02_sfnt_off00011649.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11649 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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