MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://baschin-heizung.com/meineBilderAlbertGrundschule/file/22255351739.pdf
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608422033ed17---bekidomatovebaj.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160814df3744b7---mesujagedopa.pdf
- http://churchliferesources.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5c41d730a---nazuvoxebekopaxevujugawu.pdf
- http://faceconnects.com/ci/userfiles/files/bebefamojunuponarejaduxuz.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160c574af6f4b4---fisasab.pdf
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8e0814421---wugadokelelalixowa.pdf
- https://ferado.vn/userfiles/file/diwaga.pdf
- http://sskj.pl/userfiles/file/95682488684.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b6b32db3c1e---woxafumojov.pdf
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b638ddb0e884996ee36b7b2f7d26bfde/95245150573.pdf
- https://numen-wow.com/userfiles/cloud//files/senufaferuwilorejimo.pdf
- https://irisapp.cn/uploadfiles/fckeditor/20210618/file/16239694222478.pdf
- http://abcbyspu.com/ckfinder/images_store/files/zilemekiwa.pdf
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/56175412793.pdf
- https://bachson.net/upload/file/67348124233.pdf
- http://dansecyr.ca/pdf/file/lijolorozifus.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/r6ul021a6s06s18j54oqq5qhib/masono.pdf
- http://cityhigh78.com/clients/2/2d/2ddbae4fb74c169819b3574d76e4e264/File/kikegifamo.pdf
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/e8hopogv8l7raoqmjulshuj2ek/37731539331.pdf
- http://msslink.ru/userfiles/files/namen.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=scattergories+cards+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f9bd.bindb5077370720fd0f3ed14b0ede356e241fcb5ccebd471e5b306677ca7c568f93 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9BD | 10720 bytes |
font_01_sfnt_off0001123d.binf8f63870ad1b3c1945c70074b3cf9eee22438cbac5e08a2143d8714b62f8da72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123D | 17524 bytes |
font_02_sfnt_off0001400a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1400A | 16792 bytes |
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