MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing or trojan-like behavior. The document contains a link farm pointing to various compromised WordPress upload storage locations and other disposable hosting, likely intended to redirect users to download malicious content. The presence of external URIs and a link farm structure suggests an attempt to distribute malware or phish for information.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://investir-petroleo.pt/ckfinder/userfiles/files/dasisotosi.pdf In PDF document text
- https://aihr-iadh.org/uploads/FCK_files/file/25258609128.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613e504875cf6---bubopa.pdfIn PDF document text
- http://www.letnifestiwal.pl/ckfinder/userfiles/files/rorukalidepam.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021090321264273499.pdfIn PDF document text
- https://viettincapital.vn/upload/files/zapewizisasofe.pdfIn PDF document text
- http://vipdiler.ru/files/file/53064332163.pdfIn PDF document text
- http://liavanhaeringen.nl/userfiles/files/41029268426.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613602ef64fc2---14350231009.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/e2a023f9ce5745bc6a6561b09eab0074/71035831392.pdfIn PDF document text
- https://momentous-inst.com/uploads/image/files/85900603791.pdfIn PDF document text
- http://business-plan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/11280015984.pdfIn PDF document text
- https://eklyps.net/images/file/logavosexamis.pdfIn PDF document text
- https://menlopark.com/wysiwygfiles/file/40479741935.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/161414c19a0d01---lagenune.pdfIn PDF document text
- https://peoplesmodelinternational.com/ckfinder/userfiles/files/wokasuvexezosukozuvenu.pdfIn PDF document text
- http://uhy-th.com/image/upload/files/sexoxekerabuforam.pdfIn PDF document text
- http://youzedu.com/ckimages/files/20210905223350557772.pdfIn PDF document text
- https://laurallo.com/ckfinder/userfiles/files/wugetupimilotemuzonup.pdfIn PDF document text
- http://abwferrellpkwy.com/uploads/files/50040438912.pdfIn PDF document text
- http://ymmicro.com/files/files/zupigowosunilafaj.pdfIn PDF document text
- https://aqua2go.pl/galeria/file/7842219041.pdfIn PDF document text
- http://hanlacsclub.com/ckupload/files/15331129391.pdfIn PDF document text
- http://sgrdinstitutionspandher.org/sgrd/userfiles/file/74942503708.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=mobdro+apk+downloadPDF 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_off0000d28f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28F | 10204 bytes |
SHA-256: 8abe6afd460acdd61b77ab82035360253850b694a6d942672f93122ebf7acb49 |
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font_01_sfnt_off0000e949.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE949 | 17992 bytes |
SHA-256: a33fb01e1487597ad7490d6d45ef5f664ac831987a24c75f3eb05d768cdc7a37 |
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font_02_sfnt_off000117d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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