MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to various domains. Several of these URLs are hosted on compromised CMS upload storage or disposable hosting, indicating a likely attempt to lure users to malicious sites for phishing or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://gdlianyu.com/uploadfiles/file/89117493270.pdf In PDF document text
- http://tutek.eu/userfiles/file/36806066329.pdfIn PDF document text
- https://unosms.us/userfiles/file/keluxutowusokabegumenux.pdfIn PDF document text
- http://ombs.ru/uploads/files/7179394265.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/tr5taqjphv46u54l3a3hb25isk/34883225551.pdfIn PDF document text
- https://ost-fogging.com/upload/files/wuzuzulejirurezawifodeve.pdfIn PDF document text
- http://abbuffalowings.com/uploads/files/dugop.pdfIn PDF document text
- https://goacetours.com/ckfinder/userfiles/files/52176421691.pdfIn PDF document text
- http://xn--b1afklwjc5g.xn--p1ai/ckfinder/userfiles/files/gerasawisogirupojovu.pdfIn PDF document text
- http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16140a1d7cca46---61724873001.pdfIn PDF document text
- http://tkhomedeco.com/assets/uploads/ckedit/files/20210906154804.pdfIn PDF document text
- https://emartdeko.pl/galeria/file/ruxelutesubutota.pdfIn PDF document text
- https://bdblue.com/ckfinder/userfiles/files/mapenasameju.pdfIn PDF document text
- http://huucodatlanh.com/userfiles/file/15143743656.pdfIn PDF document text
- http://irina-beha.com/ckfinder/userfiles/files/13957831376.pdfIn PDF document text
- http://erictex.com/ufiles/files/turaxezo.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/zukuwegi.pdfIn PDF document text
- http://easyreturn.store/userfiles/file/24347507863.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613def0dbb9d4---16825870296.pdfIn PDF document text
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16149941e532a5---37046666155.pdfIn PDF document text
- http://tuderprogettazione.it/userfiles/files/42753920338.pdfIn PDF document text
- https://channeloflove.com/ckfinder/userfiles/files/56033948268.pdfIn PDF document text
- http://lubrifianti-auto.ro/files/file/50352990148.pdfIn PDF document text
- http://ducthoaudio.com/upload/files/5607564829.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=the+laws+of+human+nature+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA56 | 19384 bytes |
SHA-256: 11d71645e8fab23855d67e5cd285049917424495caa496e9913bc5c7f110a1c2 |
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font_01_sfnt_off00010d2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012541.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12541 | 10820 bytes |
SHA-256: b426690874093ea35059df28bf63ffd369bcea8605b56d969a4833093904af25 |
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