MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to potentially compromised websites or disposable hosting. The document body is heavily obfuscated, suggesting an attempt to hide its true malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://wastran.ru/uplcv?utm_term=digitbin+lightroom+premium PDF link annotation
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161455710e0ea8---saparote.pdfIn PDF document text
- https://swalaya.in/userfiles/file/tonapijaf.pdfIn PDF document text
- https://peterdegendt.be/file/wojavivodalinudekogosofo.pdfIn PDF document text
- https://moderator.lt/components/com_mijoshop/opencart/image/data/files/5698633016.pdfIn PDF document text
- https://ta-taiwan.com/app/webroot/userfiles/files/derafesegi.pdfIn PDF document text
- http://matras-devison.ru/upload/file/94777192597.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613ba37879712---sobil.pdfIn PDF document text
- https://gulfsupremesa.com/ckfinder/userfiles/files/15397130300.pdfIn PDF document text
- https://remini.hu/userfiles/file/98702797365.pdfIn PDF document text
- http://topoint.cc/userfiles/fckFile/20210918054916.pdfIn PDF document text
- http://restokrat.info/userfiles/file/90726728457.pdfIn PDF document text
- https://clicksnepal.grnca.org/img/files/files/1814170981.pdfIn PDF document text
- https://marwaautorepair.com/nbloom/fckuploads/file/pukopixoxukaset.pdfIn PDF document text
- http://www.galiantsolutions.com/emailimages/file/sefuxatosupuvo.pdfIn PDF document text
- http://ventilatoryzlin.cz/images/file/levazolojufunu.pdfIn PDF document text
- https://grnca.org/img/files/files/86253225312.pdfIn PDF document text
- http://benthanhsgfarm.net/images/uploads/files/masuk.pdfIn PDF document text
- https://thaiwoodengames.com/files/upload/files/7432246305.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/161478d723307f---xozumofizunerabaxilisirel.pdfIn PDF document text
- https://eghamatsafar.ir/basefile/eghamatsafar/files/lijewalodexesasiwuro.pdfIn PDF document text
- https://thehouseproduction.net/file/borozovadizoser.pdfIn PDF document text
- http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/vakuteguzumetedul.pdfIn PDF document text
- https://cvssteelex.com/ckfinder/userfiles/files/jogafazifetowixoxezuvez.pdfIn PDF document text
- 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_off0000f33a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF33A | 19308 bytes |
SHA-256: 7b7015d7b47df71c1d5c9bb60154efe36a2e7de8938ad10b165e6cd163a6f79f |
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font_01_sfnt_off00012540.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12540 | 10612 bytes |
SHA-256: 8f78da378dd9d9f1731e9cef081b8320f015e3bacc6191a08177aa9d123bf74e |
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font_02_sfnt_off00013d0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D0E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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