MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many embedded URLs pointing to compromised CMS upload directories and disposable hosting. The document body is heavily obfuscated and appears to be auto-generated content, further supporting the link farm and phishing pretext.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
Heuristics 6
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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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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://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1616dd6ee8f3ff---fomolusu.pdf In PDF document text
- https://rh4-h1tapi-turbo.com/contents/files/75468895313.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1616d0b628c647---zivozetig.pdfIn PDF document text
- http://gutachterbewertung.de/userfiles/file/mubipivefudatuxewolosox.pdfIn PDF document text
- http://fabtur.ru/upload/files/zivuvirekagonapisati.pdfIn PDF document text
- https://ismet.com.br/ckfinder/userfiles/files/vovoda.pdfIn PDF document text
- https://mobilaide.com/upload/editor/file/95770059818.pdfIn PDF document text
- http://premiercontractinginc.com/files/file/mideviwunozoparivosoba.pdfIn PDF document text
- http://jfhconsultancy.nl/userfiles/files/wofepuxepe.pdfIn PDF document text
- https://bostoncake888.com/UserFiles/files/66800582647.pdfIn PDF document text
- http://iwayman.com/uploadfiles/file/211016063316972020ap9jff.pdfIn PDF document text
- http://cec-intl.ru/app/webroot/files/file/49143508367.pdfIn PDF document text
- http://warmistore.com/userfiles/file/49515031260.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/zurujobawopug.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147de4191e69---potovotajuramakufe.pdfIn PDF document text
- https://keyword-lda.pt/site/upload/file/19141085751.pdfIn PDF document text
- http://terwaarde.be/ckfinder/userfiles/files/guralu.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/29687120163.pdfIn PDF document text
- http://wxbeimei.cn/upload/ckimg/files/202109161201184885.pdfIn PDF document text
- http://bhk-aindling.de/userfiles/files/gekufajipebakeriwed.pdfIn PDF document text
- https://www.leadercaravans.com.au/application/third_party/ckfinder/userfiles/files/10222750150.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/5879abccdd0fd166be6faacba248cf9e/11765432010.pdfIn PDF document text
- http://medicalproduct.hu/images/files/12604956032.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/cmwvf4RlXg4/uplcv?utm_term=is+it+if+i+were+or+if+i+wasPDF 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_off0000d9b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9B5 | 10096 bytes |
SHA-256: 6f148844d9fe69b620898af65c4d8d99005402c0035410fd20bdc9bdd72bcb1f |
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font_01_sfnt_off0000f075.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF075 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010887.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10887 | 17316 bytes |
SHA-256: e05ff40176e2901403a8d5ad21c6516bd5842183ea939f14e666c89bfb19cc79 |
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