MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is identified as malicious by ML classifiers and ClamAV, indicating it's a phishing or trojan PDF. It contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The PDF's structure and embedded links strongly indicate an attempt to lure victims to malicious websites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://garglob.ru/uplcv?utm_term=color+atlas+and+textbook+of+diagnostic+microbiology+pdf+free+download
- http://gat-asset.com/CKEdit/upload/files/mamupobig.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160719f9b46cab---74561214050.pdf
- https://songod.vn/uploads/image/files/93458087149.pdf
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612cbff1df929---79425545003.pdf
- http://yngc.ru/admin/ckfinder/userfiles/files/mimazupogomarowimik.pdf
- https://personnelcle.com/userfiles/file/83153237167.pdf
- https://afriqueitnews.com/wp-content/plugins/super-forms/uploads/php/files/5f59bde305d449aeda0a6ffc85463260/44036454262.pdf
- http://thephinhmienbac.com/upload/files/jorapikegubafesup.pdf
- http://mauchlineware.com/html/chapelstreet/web/userfiles/files/vifejuwidezafabepo.pdf
- http://brukbet.com/user_images/file/92043027322.pdf
- https://landi-bg.com/images/file/mabasi.pdf
- https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c757e408e90---68996236736.pdf
- https://hifi-markt.eu/kunden/kronhardt/ckfinder/userfiles/files/vugimagoropaxozowasi.pdf
- http://saovietgroup.com/upload/FCK/file/zadanibob.pdf
- http://ledspectrumthai.com/ckfinder/userfiles/files/52444049230.pdf
- http://altaprecision.com/userfiles/file/35955057042.pdf
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a7b509d74b---59220483676.pdf
- https://uclerbaklava.com/resources/file/supitijabixuk.pdf
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16092979856a63---95859758147.pdf
- https://ap-qatar.com/userfiles/files/fekogafogejebiraxitora.pdf
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/91110f48581906320f916d2917771182/gofujax.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160820a1050281---dujoxato.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_off0000bedf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBEDF | 16792 bytes |
font_01_sfnt_off0000d6f6.bin69fe5c7348fe17f6cc3963583bf3448c78b2f3e7a961969a74de9ce0a31989a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F6 | 11528 bytes |
font_02_sfnt_off0000f1fa.bin898541e8108c8ddab9b065585d19ca367d5d05f36379414697a767f02f617952 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1FA | 16372 bytes |
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