MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of multiple distinct hosts and the use of formcraft plugin uploads indicate a coordinated effort to host malicious files.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://costumeworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077891ff2081---lerol.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160aa89789135b---18685279908.pdf
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca08e7806e---lerudusutezujiji.pdf
- http://uk-finansist.ru/userfiles/file/43908044996.pdf
- http://exhibitionchannel.com/upload/pejugilisitisa.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/qpopo1jbrn20r6o0uf1jbgeasm/47011336815.pdf
- http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f724dda2c4---8069288583.pdf
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ecdb10be84---69467843193.pdf
- https://fotojursa.cz/userfiles/file/zasonejusokuzinegibame.pdf
- http://www.tamtrebinhminh.com/public/files/5805821520.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1609f513eee725---69123795004.pdf
- http://michaelwilliamslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/98273689283.pdf
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/gj4kmsgedbhac1btkk2c9bssko/rukarifexivipimaratab.pdf
- http://uitvaartverzorgingsindex.nl/images/uploads/66576325641.pdf
- http://megalaserasia.com/upload///burunumuxevobisi.pdf
- http://bwc.lt/i/65412862743.pdf
- https://benqmusicworkshop.com/fupload/file/pidagavesi.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/02983ef043bfb3d8b24bfb294bf6e161/3755648368.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/cdq72j3243pijde6tqmu148j4k/41198892810.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbb67e06e1---vokodejalubab.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/b15e28c0ecfcfc33168134c524305277/tadomupaxok.pdf
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/160be41b7a2b78---76935989437.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160f5e49b8eb83---tesabiwelabiwusurokagur.pdf
- https://digiconelectronics.com/media/90174235785.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=spongebob+sponge+out+of+water+full+movie+online
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/ab5332aac7c58da0be4ac056f54dff69/81943472292.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_off0000d364.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD364 | 16792 bytes |
font_01_sfnt_off0000eb7b.bin7b391d24b5f2f0db317f9a5356ec384c8e3d66d413a24685c01f4efcea9418f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB7B | 11168 bytes |
font_02_sfnt_off0001056f.bind516141805acbbeccf19d5f168b64feb078008e23440221c7c2d171655dfdb4c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1056F | 17040 bytes |
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