MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous external URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://cructi.ru/uplcv?utm_term=the+meaning+of+ruthless PDF link annotation
- http://theofficefurniturestore.com/ckfinder/userfiles/files/75277196147.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb0cd63d205---bivaxoxozanuk.pdfIn PDF document text
- http://mosjob.ru/images/file/54551706643.pdfIn PDF document text
- http://www.aadhar-interior.com/userfiles/file/molowolabemiporeru.pdfIn PDF document text
- https://hchoanglong.vn/userfiles/file/53064811853.pdfIn PDF document text
- http://55thocscompany.com/clients/62662/File/fipuruzorolemuvejeza.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/fufaforufakedex.pdfIn PDF document text
- http://dlzhrjd.com/images/uploadfile/files/71678918754.pdfIn PDF document text
- http://pronobile.com/catalog/file/fepakaziwupupa.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/8cfba9f868e8feb48c9c4e2517b3b070/10299050582.pdfIn PDF document text
- http://ehomeforeclosure.org/images/file/bikitemopi.pdfIn PDF document text
- https://muratay.nl/userfiles/file/dopud.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606f2819a0287---75291377362.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/opk2k9pk93fej5niu56p9lgqu6/3858929993.pdfIn PDF document text
- http://guanzhuli.com/userfiles/file/57564384961.pdfIn PDF document text
- https://detskeihriska.eu/ckfinder/userfiles/files/mobebejawu.pdfIn PDF document text
- https://aquafilling.com/userfiles/file/dajikifurususejofaxexu.pdfIn PDF document text
- http://sammyurias.com/userfiles/files/tezajap.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8823386a0---61521446094.pdfIn PDF document text
- http://musikpark-live.de/userfiles/file/tojozaxupibi.pdfIn PDF document text
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e4f99d4a03---bizajajababevopot.pdfIn PDF document text
- https://centrosteadycam.it/wp-content/plugins/super-forms/uploads/php/files/3a445ed6031ff4324311b598b55ebe45/11432425304.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_off0000dd4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD4F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f566.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF566 | 10724 bytes |
SHA-256: 0ce339f73fdbb8b42d6ac066ce23ce42002dc97b57f61b29fd3460d971636364 |
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font_02_sfnt_off00010dd0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD0 | 19944 bytes |
SHA-256: 1997baebac337d1f0339a1afd340f32a9d80022596c95c9e4088938665b789de |
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