MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, forming a link farm. One heuristic specifically flags a link farm pointing to compromised WordPress upload storage. Additionally, an embedded JavaScript stream was detected, suggesting potential for further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pixomot.ru/uplcv?utm_term=putting+the+one+minute+manager+to+work+pdf PDF link annotation
- http://www.northern-japan.com/image/upload/File/27703759264.pdfIn PDF document text
- http://k-ookuma.com/js/upload/files/junogofenuviponajolafeb.pdfIn PDF document text
- http://biosystech.com/pdsFck/file/wubiropulutoxawewazofog.pdfIn PDF document text
- http://averon.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161569363d0bdf---92982562416.pdfIn PDF document text
- http://mnwebdesign.dk/userfiles/file/24272277892.pdfIn PDF document text
- http://www.sas.edu.mn/ckfinder/userfiles/files/sarabuni.pdfIn PDF document text
- http://lavalnerina.it/userfiles/file/bazisinijesatulixesak.pdfIn PDF document text
- http://pharmorgsyn.com/upload/files/katof.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/ihs2jghu88er6ltvm5jvnnu5h8/genivolulileberalig.pdfIn PDF document text
- https://cnc-ar.ro/files/file/ralovexixigisinas.pdfIn PDF document text
- https://38e5bbdfe8be.gdziezjesc.info/userfiles/file/gibaropirexal.pdfIn PDF document text
- https://stephan-kratt.de/data/reiterhof/userfiles/file/momegemunanavosizirekulub.pdfIn PDF document text
- https://argumentua.com/i/file/21970249662.pdfIn PDF document text
- http://muzeumostrowiec.pl/obrazy/file/bugug.pdfIn PDF document text
- https://www.jnvhardoi.org/ckfinder/userfiles/files/lofudikakitonidixisawomu.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/65it9ju6dvarbks75feqkrdl71/99312907766.pdfIn PDF document text
- http://shbaicun.com/userfiles/file/2021100811082473499.pdfIn PDF document text
- https://takipcisec.com/calisma2/files/uploads/43620237476.pdfIn PDF document text
- https://turismo-galicia.es/ckfinder/userfiles/files/99634256661.pdfIn PDF document text
- https://rippa.pt/files/file/36345958924.pdfIn PDF document text
- http://udelimpa.es/ckfinder/userfiles/files/4756058782.pdfIn PDF document text
- http://hunting.kg/userfiles/file/48211824178.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_off0000bdc0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDC0 | 11008 bytes |
SHA-256: 463ec0eeae14ae441fbd6e0ccf2d24b0d4114cc1aca96ff3185a56498600bc83 |
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font_01_sfnt_off0000d6fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6FD | 18012 bytes |
SHA-256: f50c6a2b2a35761e93f9d038de46695af93e2b44713da5c4a11c7a9c0ebbbbf9 |
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font_02_sfnt_off000105d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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