MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to compromised WordPress sites. These links are likely designed to redirect users to malicious content or phishing sites, a common tactic for distributing malware or stealing credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/541edb09c5c417554352b38c8efef551/23100774135.pdf
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/fa2205d0b5176e255db8c832dba72e08/wamizalatelejazagabusune.pdf
- http://www.franklinwebdesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ad160d8e3c6---kaxotufedebowofovid.pdf
- http://aczelzalog.hu/tmp/47553257700.pdf
- https://agatanorek.com/files/file/90329579829.pdf
- https://ajitcoatings.com/uploads/87635197003.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c26311696---jemafigodovafefa.pdf
- http://netinflux.net/userfiles/file/1262776120.pdf
- https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/b2400d23f9e87c2acabd37191ec8f3b6/96327299754.pdf
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/050fba2df2ead7403a0319ec866585f7/2859496895.pdf
- http://agroanaliz.by/upload/editor/files/dozexijegazop.pdf
- https://asiquim.com/ckfinder/userfiles/files/mafusofazamulo.pdf
- http://boldogelet.hu/media/79976538317.pdf
- http://lideparts.com/userfiles/file/1620768775.pdf
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/880cihpb0enmnj37astkloboob/livujezofolole.pdf
- https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/771g4nk5npsvnhqhta2lt8ss1m/20508555258.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/a829730b45c49309abf071137c2e981f/97007608226.pdf
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a7c8c696dce---wugunukebid.pdf
- http://www.ipkameralari24.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a424d02e100---naluwixarilajaki.pdf
- http://wittlich-luexem.de/userfiles/file/tebifaguruliropis.pdf
- http://shqinze.net/admin/upimg/file///koxarijosegesivojovosaxu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=structural+analysis+and+design+of+a+warehouse+building+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_off00019de4.bin9f022a517dfc525149a528646da172182b6d43151bb2b673454280669a3de84e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19DE4 | 17784 bytes |
font_01_sfnt_off0001ccbb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1CCBB | 16792 bytes |
font_02_sfnt_off0001e4d2.bin93cf1a32791360cdd68096bfcfdf3f97c0fed66f32e5ad9edc2f2f880c74fb41 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1E4D2 | 11416 bytes |
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