MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The presence of numerous external links, many pointing to compromised WordPress sites, suggests a phishing or malware distribution attempt. ClamAV detection and ML classification further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/1609601a5785bf---kisokemigiw.pdf In PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611d057dedf7b---65100268523.pdfIn PDF document text
- http://srhs1980.com/clients/877094/File/878354824.pdfIn PDF document text
- https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160fdd8c1c6561---nudidewugij.pdfIn PDF document text
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16113c4d562390---54977977359.pdfIn PDF document text
- http://vytvarnyobchod.cz/UserFiles/File/62533140689.pdfIn PDF document text
- http://iiiemjobs.com/FCK_Editor_Images/files/74496876000.pdfIn PDF document text
- https://najlepsze-w-polsce.pl/uploads/pibaneg.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/wiparotuwosofugi.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160d99b9624d6e---39600494186.pdfIn PDF document text
- https://crcnueva.naturasoftware.com/uploads/images/files/39372273162.pdfIn PDF document text
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/a98a17287599f485d526eb042c539a23/63623512737.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089b0bfe35e6---36827993903.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/a4c0d29c5d335ce7fe45c373a3ece70e/zigeg.pdfIn PDF document text
- http://canxetaidientu.com/images/file/39470724486.pdfIn PDF document text
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/n4m9h0sksk19pah77kv048ba2s/xifex.pdfIn PDF document text
- http://3e-machinery.ru/app/webroot/filesfiles/63829607202.pdfIn PDF document text
- http://abc-tel.ru/data/File/lamifekurofijerefuro.pdfIn PDF document text
- https://magyar-logyogyasz.hu/fileok/file/40594751962.pdfIn PDF document text
- http://mottaing.eu/userfiles/files/gimevedejibadanafiloti.pdfIn PDF document text
- https://ptogel2.com/contents//files/womimupekoziro.pdfIn PDF document text
- http://dotbamboo.com/file_media/file_image/file/jugowuv.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608177ef0bab9---vanijaxerebudina.pdfIn PDF document text
- http://nmways.com/uploads/fckupload/file/degowapixul.pdfIn PDF document text
- http://izumrud38.com/ckfinder/userfiles/files/tivubekit.pdfIn PDF document text
- http://tjsijiqing.com/ckfinder/userfiles/files/2021/0606/da5ff0a45a1862e0ee00d4f56e609479.pdfIn PDF document text
- http://ramseier-appenzell.ch/elrada/js/ckfinder/userfiles/files/89457139065.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=rafter+tail+template+pdfPDF 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_off0000c10e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC10E | 10312 bytes |
SHA-256: 98460474f2af66226f61bb2dff0f7ed03438d218d3e059a120d3edb3ddbbe7c7 |
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font_01_sfnt_off0000d842.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD842 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f054.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF054 | 15520 bytes |
SHA-256: 1477b3ac2f7c1f67f4c6c2350c1fb3dccd1a66f63c76be17f72743f3839f0133 |
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