MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress upload directories. The document body is heavily obfuscated, preventing a clear understanding of its direct user-facing content, but the presence of numerous external links suggests a redirection or phishing attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://prodesign31.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613755f637c72---2670051069.pdf
- http://alfavs.eu/userfiles/file/62597526201.pdf
- http://biomax.shop/filespath/files/20210902003510.pdf
- https://polenhosting.com/calisma2/files/uploads/15369314609.pdf
- http://www.solarwindependence.com/ckfinder/userfiles/files/34515700337.pdf
- http://www.ppk-kp3k.kkp.go.id/ver2/extra/ckfinder/core/connector/php/media/ckfinder/files/46146677581.pdf
- http://kartywspomnien.pl/uploads/assets/file/37976004754.pdf
- https://www.acptechnologies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613075ed32d0b---dufelozimumuw.pdf
- https://garnizone.com/userfiles/file/22938786881.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161397f06ca4cb---pajamoxaru.pdf
- https://namratalakhotia.com/userfiles/files/puvisofaxajipidovosipav.pdf
- https://5ky13lu3-1251.com/contents/files/zapedivepofulosuxe.pdf
- https://foulardfotografando.it/file/94165642400.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/913c4ef871f4b2c195fd72502e463976/wiwil.pdf
- http://mebelhotel.ru/userfiles/files/29135015154.pdf
- http://nature-revive.org/files/file/77290647129.pdf
- http://www.novosib-sport.ru/ckfinder/userfiles/files/linevev.pdf
- https://zoomkish.com/basefile/zoomkishcom/files/88963452819.pdf
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/161332c5ccfe6d---56171545141.pdf
- http://meandnetworking.com/ckfinder/userfiles/files/merowatamenakan.pdf
- https://snabavto.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613380eb9b59f---48249814409.pdf
- http://kamennykoberec.eu/editor_uploads/system/files/94618350415.pdf
- https://marblo.com/app/webroot/img/files/vetadopimogidanezubejuja.pdf
- https://mfdesign.hu/files/file/tajegegef.pdf
- https://kawanmto.info/contents/files/86584426907.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=message+of+the+seven+ages+of+man
- 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_off0000e570.bin8e56c8e4a8aad9924a5abe5e1178e8ce00747b68dbb6c238fc227b5c6d33eec0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE570 | 16832 bytes |
font_01_sfnt_off0001104a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1104A | 16792 bytes |
font_02_sfnt_off00012861.binee5480bf944c7d7c8f31facf86dcbf49a87eb9b3b4d6970912e1307e42f5b1b5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12861 | 10484 bytes |
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