MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, a common technique for executing malicious code within documents. This script likely redirects the user to a series of URLs hosted on compromised WordPress sites, forming a link farm. These links are designed to obscure the ultimate destination, which is likely a phishing page or a malware download server. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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 http://abwmercury.com/uploads/files/dadakupikurafefetanil.pdf
- http://kiiga.ru/userfiles/file/95447243761.pdf
- http://lichnyiybrand.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16073b4cdc86f0---safakovexaluze.pdf
- http://www.dean-cpa.com/files/adminpic/file/30907294075.pdf
- http://dvarenda.ru/upload/file/17100639250.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/12tgqfb3mvl9satn1gd7u2kes4/52861350444.pdf
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/1608356196fbf8---lowub.pdf
- https://gencshoworganizasyon.com/upload/ckfinder/files/mewopozajudagulabupetofop.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160f975f93fc5a---najuf.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a23ac1d295b.pdf
- http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d912246568f---450277894.pdf
- http://urbanconstructions.org/images/uploadedimages/file/bolavaparesidulonoxodeje.pdf
- http://daugiavanthienphuoc.com/media/ftp/file/letawewikowufowabimato.pdf
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/160dc985c24aa7---74393400607.pdf
- http://letresorellebio.it/userfiles/files/xunovuwiko.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d39542d682---73044197370.pdf
- https://southtours.com/wp-content/plugins/super-forms/uploads/php/files/ci2ot0hpgup4ct98cqumi8go4p/seromijasiwolibono.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/zutul.pdf
- http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1608c7fa8d77e0---sapomuzagavabag.pdf
- http://teraval.cz/res/file/tanakujik.pdf
- https://ropaalmayoreo.com/images/userfiles/file/68781428775.pdf
- http://bjaimama.com/data/upload/2021/05/file/202105140534484380.pdf
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dcaa4212b8---wuvetop.pdf
- http://maslag.eu/userfiles/file/damedup.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=what+does+fog+symbolize+in+jekyll+and+hyde
- 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_off0000dcca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCCA | 16792 bytes |
font_01_sfnt_off0000f4dc.bince8eb9d9fbf2361c32186c32c9e34be5c97129013ee371a751bc68b996525aac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4DC | 16880 bytes |
font_02_sfnt_off00011fc7.bin3358e8af7696f33fb6b8274f1208708910154abad9a60110bccf47bcdee70652 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FC7 | 11228 bytes |
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