MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as a link farm hosted on disposable domains, indicating a phishing or malware distribution attempt. ClamAV also detected it as a phishing trojan. The presence of numerous links to potentially compromised CMS upload directories and disposable hosting reinforces the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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://ytovietnam.net/ckfinder/userfiles/files/16976633240.pdf
- https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/j7g136l0reiff3lhm141d5ooku/lufisoj.pdf
- http://reicar.dk/userfiles/file/pigipijidisir.pdf
- https://olterus.com/contents//files/mebines.pdf
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/l8vrat5iqajrn640ip2f9g6tu1/guzuxujojujupiliruseji.pdf
- http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b576a0fa8---wijagigimikevexugasumavan.pdf
- https://memoservicesrl.it/file/fanonelekuke.pdf
- http://stalmost.pl/userfiles/file/lepimorabefilevuze.pdf
- https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/99d5340d5a27f282253184378c3ef7ea/15614113087.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/vitozuperamepas.pdf
- http://31kouqiang.com/userfiles/file/1623324869.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16071f32f114b8---peduvoper.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ac17e48d684---93776943121.pdf
- https://www.straightmyteeth.eu/wp-content/plugins/super-forms/uploads/php/files/cb55e37f85eee775208c04e722964d6a/98705267927.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/ioe425pahf2kt2hbnmhutflj1l/lifoxikezotumebaxalaruji.pdf
- http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/j9b5t3ipv51cd4qkt9qvnp65s5/tugokavawuvurus.pdf
- http://aucoindeshalles.fr/menu/file/17934370398.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=enzymes+mcqs+with+answers
- https://sharpspringwww.kinsta.cloud/wp-content/plugins/super-forms/uploads/php/files/6dfa900e31ca6a4162d8fd917e8a33c2/sudowutukegezusewufazu.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_off0000e8aa.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8AA | 16792 bytes |
font_01_sfnt_off000100c1.binddc2f5823f3b1c2a3459d417cc40f62defdd28bd0b11d07adc60db69b72be767 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100C1 | 10716 bytes |
font_02_sfnt_off00011946.bin135b1f801d13889199651b7bb0259769108bdd8de01e6140cd628f704ace8b56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11946 | 17216 bytes |
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