MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm designed to redirect users to malicious content. The presence of multiple distinct hosts and a high number of links per host further supports this. No scripts were extracted, and the document body was unreadable binary data.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1b1200f190---fuvuzoxalexiviripapuvemur.pdf
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/4h87s8vc35m5lnaqjts9bnqrjn/sabep.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160948218dbb51---vowaguwiloje.pdf
- http://aplus.to/userfiles/file/zinifoba.pdf
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/8nhiafaui8d5ck8b3n36gic6m1/gosowo.pdf
- http://e-hane.com/files/72248888108.pdf
- https://bishopsalamatkhokhar.org/userfiles/file/43114564145.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d411c0e15d---20827430889.pdf
- https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/f07aa24d42b352b98f37ba6da56293e1/wetuva.pdf
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608cee134e740---18665898828.pdf
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160943cbe05f6b---vopulaba.pdf
- http://thaiboxes.com/piceditor/file/gadupafozetoxelerum.pdf
- http://inarchengineering.it/userfiles/files/tijula.pdf
- http://gorisum.net/fckeditor/upload_file/file/98002218816.pdf
- https://aulacvn.com/upload/fck/file/66792880034.pdf
- http://ambvetbrashersclavoghisu.eu/userfiles/files/bojuda.pdf
- http://krevue.cz/UserFiles/File/tunego.pdf
- http://wawabed.pl/uploads/userfiles/file/82715323392.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/93f54f50c033d78dc5867d2f5c9b1054/nuxudi.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d231ddb18---87731775394.pdf
- http://m4klynchburg.org/clients/3/34/34420611de4c9c7593cf5e5fe12de6df/File/ropamobikukabirik.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/16093f7b5904dc---gitule.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a306a995580---31752351955.pdf
- http://abwrichmond.com/uploads/files/21481845484.pdf
- https://khotelmarket.com/FileData/ckfinder/files/20210606_DDA10DCAC7C136E6.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=it%27s+the+hypocrisy+for+me
- 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_off0000c221.bina6d00d1cc10391d5a61e8ce38681bceb6031e3462058fd7091a7601650ae5f35 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC221 | 10532 bytes |
font_01_sfnt_off0000da2f.bina04ea6adacddee1542ce0add0498800b609e382a5f01d41e3ae18e9e0d489252 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA2F | 17092 bytes |
font_02_sfnt_off00010695.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10695 | 16792 bytes |
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