MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many of which point to compromised WordPress sites, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent. The file's structure and numerous external links align with a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9806
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 https://hoakhanh.vn/uploads/image/files/jozipotipukulow.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607142939676c---24395318205.pdf
- http://riggi.ru/userfiles/file/20256476344.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/06686be217f66176650fd377ac10add4/woxigagubugi.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1608a3a03c7fc6---94604747924.pdf
- http://fasson.vip/images/editor/files/62469574652.pdf
- http://njuhome.pl/ckfinder/userfiles/files/34518384190.pdf
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607371e52273c---30745620247.pdf
- https://mabuksusu.com/contents//files/12574208911.pdf
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/85ddbc2d30ae99d53fc592c3e1418527/49015104195.pdf
- https://12tiga.com/contents//files/xogomigum.pdf
- http://bestforfishing.com/wp-content/plugins/super-forms/uploads/php/files/3a7e5c23ce23ade0d333eb2dfb87ea8d/82574850768.pdf
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef794763b1---96296526782.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/4dcaae5bc2a2a762ccf6462279bc9304/89096413872.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/bf1b2fe78f1a02978ad6d5d488d7ed35/60181582655.pdf
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160790a1fd97c3---73254484811.pdf
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d1e6a28342---72063062026.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/33f9fee0ed7fd52f2da5cf37fff51142/sesafujo.pdf
- https://guapa2.com/admin/fck/file/zimowalu.pdf
- http://clinivetmadonnadirosa.eu/userfiles/files/16423143840.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076de978c7e4---sefugakovegesipowubozas.pdf
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/564b2118f74f2d053eecef634d8d7b5b/81469251214.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d22afd46ae---5357229665.pdf
- http://ridendo.cz/files/file/36119761616.pdf
- https://plswa.com/wp-content/plugins/super-forms/uploads/php/files/1152f6bd2a58135f7f046cc3e83bf9b8/bumaluwuvusi.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/u0jdl2cslsgg3m83i577qnqv74/36158880451.pdf
- http://alimentosldm.com/userfiles/file/67297946576.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=single+white+rose+meaning
- 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_off000114ea.bin6d3cdffc0ab714cfdf84153ea44a7cd6112ccea3494d9aff957b9cf841e0f60b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114EA | 10716 bytes |
font_01_sfnt_off00012d5c.bin7523a0babbcb32f70c1af20b4378bc53527840e66096b16fa8e724481b966350 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D5C | 19544 bytes |
font_02_sfnt_off00015ede.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15EDE | 16792 bytes |
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