MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The primary attack pattern observed is the presence of a link farm, with numerous URLs pointing to compromised CMS upload directories and disposable hosting. These links likely serve as a distribution mechanism for further malicious content or phishing attempts. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://superplasticizer.cn/d/files/mekanopobefakoda.pdf
- https://marciasmithconsulting.com/wp-content/plugins/super-forms/uploads/php/files/1301766d2e5d66d4f805ef718e7416ef/gokilagozuzubokidevemado.pdf
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/f8329489df7662de6a10a28df991521f/vonisidavuforojaki.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160c1a7040c576---40451399233.pdf
- http://shinies.ru/img/lib/file/barexilesuwajovu.pdf
- http://nail-free.com/ckfinder/userfiles/files/kuxagofaxupifos.pdf
- https://thinkhigh-tech.com/d/files/96845518292.pdf
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c771b70dcb3---gimasotowiperuvifeme.pdf
- http://stardentalcare.org/userfiles/file/52228750410.pdf
- https://kvkumariajnkvv.org/singhania/downloads/file/90267453925.pdf
- http://weddingdiy.cc/uploadfiles/files/20210611_082854_6948.pdf
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9d3008be9b---nofujikatako.pdf
- https://pharma-tools.eu/galeria/file/febapatoduremalu.pdf
- http://lindseyderence.com/userfiles/files/20907821623.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160886f7263731---muzalixanijobugonudajos.pdf
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081eee0e1a47---keloferotav.pdf
- http://galsabino.it/userfiles/files/gazelexozejajikukuluxudi.pdf
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/7a71f9121cb264bdc125e915cbc3fe2e/purixukaveponidakoma.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/d773ab3cb670034976150eba85d14668/8785815565.pdf
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/3k0asbd7akc3gcmnij1q3gqcm0/nomujidatujakuxazo.pdf
- http://kaithompson.com/userfiles/file/58905463222.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608584e58973f---fezatuwovexoxibudesom.pdf
- http://abimobiliare.pl/pliki/File/vuwuvurakidemupados.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=pizza+and+co
- 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_off0000ca74.binb403a308743cd9d6bf074197c3d45596b5299583eb2fcde3877ab3bbacc5e674 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA74 | 9880 bytes |
font_01_sfnt_off0000e049.bin6b2a2f559a1ff240e6d36a174dd15c90ef99230e518d1edca775c539372f9b29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE049 | 16904 bytes |
font_02_sfnt_off00010c42.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C42 | 16792 bytes |
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