MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external websites, some of which are hosted on compromised CMS platforms. The presence of numerous distinct hosts and the 'utm_term_redirector' flag suggest an attempt to obscure the final malicious destination, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9983
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://bocghebinhduong.com/media/ftp/file/junasipufoditodovi.pdf
- https://jpjplumbingandheating.com/FCKeditor/file/raxefiluxoja.pdf
- https://www.allterra.group/wp-content/plugins/super-forms/uploads/php/files/019dbaec8252c453a96312cbf881cc87/wujowipukonaxevozasud.pdf
- http://gildiamasterov.ru/userfiles/file/94634070534.pdf
- http://forter.vn/hinhanh/file/venixagi.pdf
- https://123natura.com/stockages/files/muxufubixegoxoribaluji.pdf
- http://baigeleather.com/userfiles/file/dikoke.pdf
- http://schokozentrale.de/idata/takiwunebefelen.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/c718d4fe6c5d98698fb0b90e0d580fbd/39984071423.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b4fd22f39d---tixojilewubimivozarut.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084d46aee79e---bopovasozelake.pdf
- http://saharun.org/uploads/ckfinder/userfiles/files/zisofamexesavovikef.pdf
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/c81d81521e9c539d0ff5f84586a82a97/80912144343.pdf
- http://lakehighlandsrw.org/clients/863582/File/78766120445.pdf
- https://senhewood.com/d/files/wawabi.pdf
- http://kabaretyimpresariat.pl/Upload/file/31248588012.pdf
- http://guides2alpes.fr/uploads/file/jafaxerejevar.pdf
- https://zlatartopalovic.rs//files/bewawakiwuxadosi.pdf
- http://oipipleszno.pl/userfiles/file/sarovurexubasizup.pdf
- https://takiminsahada.com/wp-content/plugins/super-forms/uploads/php/files/4u626c8a0n29v493dco8gcqm29/69822301690.pdf
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/e540dba0cd9f2de352da253301c6df7a/96463777536.pdf
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc39b4c74e6---76294864179.pdf
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ada3229853a---47733948881.pdf
- http://biosite.ru/images/news/file/96591347692.pdf
- http://yourtruck.be/upload/ckeditor/file/fijudogogagerenafudila.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=cuantos+ladrillos+de+techo+entran+por+metro+cuadrado
- 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_off0000de5f.bin465f0d3427cfab31397119cad2e8aa3ad234406407c7da29e1ef2db2e8a3b860 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE5F | 18536 bytes |
font_01_sfnt_off00010d16.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D16 | 16792 bytes |
font_02_sfnt_off0001252d.bine2efd7e6a8e49f4f5c74f42294bbdb83fa9998c663b178ab4e9e95f299b9ef21 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1252D | 10912 bytes |
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