MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting it functions as a link farm to distribute phishing or malware. The presence of external URI heuristics and the 'PDF_SEO_DISPOSABLE_LINK_FARM' rule further support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 https://smidgel.ru/uplcv?utm_term=3ds+emulator+android+play+store
- http://ibrahimabuomira.com/ckeditor/ckfinder/userfiles/files/92932738399.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/6016fa817adc5d3f67a3eb2b93d6aa59/sodewezuv.pdf
- http://rentaruedas.com/files/others/28285890239.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/f71fd148c5a4d0b0d9db372fbd75a02d/kewikalozojebazuwojos.pdf
- http://china-baby-clothes.com/d/files/78950282544.pdf
- https://designclarf.it/file/7480825996.pdf
- http://boxethai38.com/upload/file/3554755499.pdf
- http://bandenplaats.nl/cmsimages/file/belilamamizafinakisekis.pdf
- http://crabandclaw.com/uploads/files/98068135446.pdf
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/161332485abdff---39401345853.pdf
- http://immodraft.nrw/images/architekten_agentur_images_/file/99211059324.pdf
- https://www.totalblissbeauty.com.au/application/third_party/ckfinder/userfiles/files/dagosofawa.pdf
- http://qbcar.ru/ckfinder/userfiles/files/nofidinikomijeg.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/93466efe7c3e3dc7d6bda2791b2b6065/gitigigekituxetu.pdf
- http://umrllc.com/userfiles/files/zobedug.pdf
- https://rumputhijau.com/contents/files/wunexanuwukigibawidibi.pdf
- https://zlataraburmevuckovic.com/files/kafakajatun.pdf
- http://monikaknoblochova.com/userfiles/file/xefawotenavevebifowowe.pdf
- https://washlounge.in/ckfinder/userfiles/files/21264018217.pdf
- https://baobiachau.com/luutru/files/55560306873.pdf
- https://www.khaosanpools.org/ckfinder/userfiles/files/47393159100.pdf
- http://hamdannepal.com/userfiles/file/texufogilovuxir.pdf
- https://cape-electronics.com/media/file/zodonulegobotakerevipodax.pdf
- 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_off0000db22.bin899fd7801dfb16532cccd75173fd3f48b94b2782035865c017165e2c857ea85e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB22 | 10840 bytes |
font_01_sfnt_off0000f424.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF424 | 16792 bytes |
font_02_sfnt_off00010c36.bina35b4c8f6f6cd78c025db1f17aabbbffef53a16279bbae96ac9527affba27b17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C36 | 18072 bytes |
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