MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised WordPress sites or are hosted on disposable domains, indicating a link farm or SEO manipulation tactic. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing trojan. The document body is unreadable, but the heuristic firings strongly suggest a malicious intent related to link distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://bedandbreakfastchia.it/userfiles/file/fusatosukevipu.pdf
- http://airsoft1.ro/files/file/31355374207.pdf
- http://atut-biuro.com/uploaded/file/duziwunulitosa.pdf
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084159c0c58d---zelir.pdf
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/d25bfdb56cba90f72a3fae69bbf3abcb/85703992776.pdf
- http://apcmagon.com/userfiles/26673462088.pdf
- http://christschoolblr.in/userfiles/file/julededagajozovumepu.pdf
- http://brunsfamilyreunion.org/clients/e/e7/e70b0594429ddd28dfd4dd2f61c76e80/File/gasafegubumurutiriruni.pdf
- http://boilerservis.ru/uploads/files/19594370475.pdf
- http://aryajob.com/user_upload/file/12566378160.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609c35eebe8ed---vedabimafa.pdf
- https://widepolymers.com/userfiles/file/10935406226.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/aa93831d6224f2af0740536456cd14cb/45254373568.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608038cc86e2b---48673745456.pdf
- http://turexpert.md/userfiles/images/file/3181085693.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bbfc3210bb1---84942051697.pdf
- https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/7eb8296c05cfb2099922fc8d5d1004e4/bovimibij.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16099c594a46aa---dedosezugitu.pdf
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609472df3d54e---zejazomakineruku.pdf
- http://toeicspeaking.net/_UploadFile/Images/file/vinoroxerepenavituzutuwab.pdf
- http://biotop-zamosc.pl/userfiles/file/55090320450.pdf
- https://a2designbg.com/userfiles/file/94830997533.pdf
- https://haysalon.com/public_html/userfiles/file/gumamutulawodaxagawijo.pdf
- http://www.hussco-steel.com/husscofiles/files/zufusifikofufebizijapude.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160947472c99df---47701570389.pdf
- http://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bacb2c3c16b---28652953462.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=rickets+causes+symptoms+and+treatment
- 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_off0000f384.binbb5a83a5973892a0d08322f31f6fc1097de3d3fb006266ce618038f3b287fb32 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF384 | 10980 bytes |
font_01_sfnt_off00010d0d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D0D | 16792 bytes |
font_02_sfnt_off0001251f.bindde95ede57cc21ccab0cfe274f86cd351c028ca4840f70536243c6ab76a4e3b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1251F | 17112 bytes |
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