MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the nature of the embedded URLs and the detection as a trojan indicate a high likelihood of it being used to deliver a second-stage payload or facilitate phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://www.hkha.org/ckfinder/userfiles/files/14985454487.pdf In PDF document text
- https://digicpictures.com/downloads/tamivemokidukufu.pdfIn PDF document text
- http://fxlcd.com/upload/file/vagadizagoniguloz.pdfIn PDF document text
- https://dondepodemosir.com/userfiles/file/jeborenoxuzewexaduj.pdfIn PDF document text
- https://medarbindia.org/ckfinder/userfiles/files/mopukuvegu.pdfIn PDF document text
- http://unibox.lv/files/text/godekiwaxob.pdfIn PDF document text
- http://xetaihyundai.net/upload/files/woxisitogizap.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16130bca161a54---welolojawatijoxukukiz.pdfIn PDF document text
- http://residencelesaline.it/userfiles/files/zakatogezamigosajuvulu.pdfIn PDF document text
- http://carmakers.cz/userfiles/files/75541341424.pdfIn PDF document text
- http://vinag7furniture.com/app/webroot/files/editor_upload/files/mitotujivoturu.pdfIn PDF document text
- http://brezov-gaj.si/uporabnik/file/funigatibevu.pdfIn PDF document text
- http://laskod.hu/userfiles/file/80935050619.pdfIn PDF document text
- http://bn-biz.com/userData/board/file/boguboriruxun.pdfIn PDF document text
- http://anticacarsulaeborzoi.eu/userfiles/files/82074588793.pdfIn PDF document text
- http://vaithun.net/upload/files/87607798531.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/bdc045ecee880721598abaa80c11eca6/21070047264.pdfIn PDF document text
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137cd0e4621e---difefabasaxo.pdfIn PDF document text
- https://estoniapools.com/contents/files/lasewinanupo.pdfIn PDF document text
- http://otpetye.com/images/shared/file/88236580194.pdfIn PDF document text
- https://rugsinc.in/UserFiles/files/5001813032.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=youtube+mate+for+androidPDF 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_off0000d39a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD39A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ebac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBAC | 16632 bytes |
SHA-256: 0ad5c4750616fc1f97c09f33b2732f3539341b19b2d8b9938000299ba89eb99d |
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font_02_sfnt_off0001167f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1167F | 10524 bytes |
SHA-256: 186fd8b8dd2cd12e0d3007850ed81845a9f8201cec6c609fdbebedbe90f43427 |
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