MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing and malware distribution lure. The document's content, though heavily obfuscated in the provided excerpt, is designed to trick users into installing a browser extension or update, a common tactic for credential theft or malware installation. The presence of numerous links to potentially compromised WordPress upload directories and disposable hosting further supports its role as a distribution point for malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9674
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://dom-2000.ru/ckfinder/userfiles/files/88569811992.pdf
- https://www.ideaklinikkadikoy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d7a0483613---vigubemoj.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fc0f5b93ee6---86443044631.pdf
- http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160aa9c2fe39ae---13945466655.pdf
- https://kodeac.com/wp-content/plugins/super-forms/uploads/php/files/u857fvtaakjh4fr6vqerqoc1fd/80069958652.pdf
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d8c1abc7c1---69406237842.pdf
- http://vivalepurrexotics.com/clients/2/2f/2f65fe2011b8f0b07f64c29a74835a02/File/70978524368.pdf
- https://mytopics.it/uploads/file/ripepofozib.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/2d3f026301c85c91a898435c24694c7e/22224988405.pdf
- http://livestocktool.com/d/files/77421211105.pdf
- http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a25959a06d---12456799672.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4271ef47f---83135718620.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/caf2d4b90ff63c652d92fea4dde61eb6/31295586557.pdf
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/udqqbj7hg4o26emc3770s47pcg/46326474589.pdf
- http://abwrichmond.com/uploads/files/98864664469.pdf
- https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f3a6d4fa51---titiribinukipajufofarixiz.pdf
- http://getampedmag.com/ckfinder/userfiles/files/38860497897.pdf
- https://bloc-immo.com/images/65005617635.pdf
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/ddb132c308f542b53bb419bcf56abfb3/15500347499.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/8ddc8adb5dd3af80f0b952c89b8ab5ea/79555704603.pdf
- http://thanhlapcongtykiengiang.com/upload/ck/files/42874006089.pdf
- https://mountmoriahcamp.com/media/41395200756.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=kamen+rider+ryuki+episode+final+sub+indo+download
- 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001a843.bin9b97849bbe7eaf7a66c60364d7ab41d820ba70a66d4179c82cf8fa9a111c1331 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A843 | 20164 bytes |
font_01_sfnt_off0001dcc0.bin43aaf6b7257293a9fb3df01e9826f837cf2b9b92f506adc28ae8aac51b7d6941 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DCC0 | 16188 bytes |
font_02_sfnt_off0001f26e.binaaa556f4600f7694dd0d048e9e8a08be1f27c317e6ad6ce51576b61583c2292a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1F26E | 11084 bytes |
font_03_sfnt_off00020bfa.bin7c854e2a89ae24116a146049e081f51a9857921a0465a4d4ba74383adf4f2520 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x20BFA | 9632 bytes |
font_04_sfnt_off00022b78.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22B78 | 16792 bytes |
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