MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript and a large number of external links. Several heuristics indicate that these links form a link farm hosted on compromised CMS uploads, suggesting an attempt to distribute malicious content or engage in SEO poisoning. The embedded JavaScript, while not fully analyzed due to obfuscation, is a common vector for further exploitation in PDF documents. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9863
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/0c025285fa9d5ff275a174ac113e14a9/xowusiligapewaseja.pdf
- https://ahreco.com/uploads/news_file/23762386197.pdf
- http://georgekoldun.com/var/upload/file/fupokebatimitutonuvod.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7a66e7a31---40703505805.pdf
- https://tucsonhomewindowtint.com/wp-content/plugins/super-forms/uploads/php/files/2d0a96b0230bed82f33b816b191b32d6/ruwididewibedezeduw.pdf
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/8a2af0348ae732251fb20474dbd377ea/fesijuzapowerelabup.pdf
- http://ankaser.com/userfiles/file/vobavusa.pdf
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/5b291682286cc60642a1b7b04d5f5be1/68659186104.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/c46rb2uov0p49kth08cq630en5/5055798643.pdf
- http://csc-020.com/userfiles/file/20210624033143_isz0pm.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/0601f2b2db4b4ab15d5bc9217ad81a4c/kurozoxij.pdf
- http://namngonviet.vn/user-/files/posilerafixagugar.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1609811dd06f15---lunuxoruxabifamutab.pdf
- https://corumosmanlimakina.com/js/ckfinder/userfiles/files/81306208028.pdf
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086e18faa886---vusabusumudonimodepaz.pdf
- https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/900852e32a6333ce6fe5bd92af92017c/kovegipanigopal.pdf
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ca7fb088d---nekaxufofekosam.pdf
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160989a385b3ab---nezozamowabilujita.pdf
- https://kermoulin.com/userfiles/file/kibapogelad.pdf
- http://iccarrentals.com/files/file/11454339826.pdf
- http://countrysquirefoods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bcade44841---xizupemit.pdf
- http://cukiernia-waltar.pl/qcms/userfiles/file/ruxetunid.pdf
- http://amandatravel.com/userfiles/file/tidinuwefurolugasanave.pdf
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075a22ead01a---kudusotilenakitezibafupel.pdf
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16077c145048a2---jipulonowolisuxebamapup.pdf
- http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16089e17d3f676---81370734433.pdf
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/4c18f772781bc611e5b8a18b68a57ea1/73542030124.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=words+to+row+row+row+your+boat
- 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_off0000d2cc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2CC | 16792 bytes |
font_01_sfnt_off0000eade.binf9985014e93b4dffdd5d7aa81c3477a097885bb4ea96077782363330a1acbe4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEADE | 17592 bytes |
font_02_sfnt_off00011916.bin2249e507a075144adcca855fe8ef1e895f5a7ccae358a7d80d068e9ce8a75c80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11916 | 10300 bytes |
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