MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple disposable hosting sites, with one URL explicitly mentioning 'photoshop 2021 keygen', indicating a lure for software cracking tools. The presence of numerous links on potentially compromised or disposable domains suggests an attempt to distribute further malicious content or phish users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://tuivaivietnam.com/uploads/files/nutobovupumit.pdf In PDF document text
- http://www.tecs4.com/intranet/ckfinder/userfiles/files/mofisinefi.pdfIn PDF document text
- http://hennel.hu/sources/elemek/file/8954302948.pdfIn PDF document text
- https://mogilew.ru/userfiles/file/tarinukuvuzuluxakuxemamuz.pdfIn PDF document text
- http://viswinkelindex.nl/images/uploads/wifufi.pdfIn PDF document text
- https://slide-bearing.com/d/files/63755830391.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/zosorijamogivuwimiroxuv.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a3bc9ebd2---7758576610.pdfIn PDF document text
- http://parentini.it/userfiles/files/89807820099.pdfIn PDF document text
- http://gesgo.de/userfiles/file/jonipopewidad.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210912004507.pdfIn PDF document text
- https://karpataljaturizmus.hu/upload/92633164728.pdfIn PDF document text
- https://retake.dk/ckfinder/userfiles/files/42200865096.pdfIn PDF document text
- http://standdominica.org/files/files/teguzijukemitipesarebut.pdfIn PDF document text
- https://thehideawayresortpattaya.com/userfiles/files/69016480753.pdfIn PDF document text
- https://gites-les-bardots.com/userfiles/file/56002491137.pdfIn PDF document text
- http://www.mezmat.ru/ckfinder/userfiles/files/17563643136.pdfIn PDF document text
- https://ketgate.eu/wp-content/plugins/super-forms/uploads/php/files/dd604df788c8d4104aa0f3ce19dc5d4a/82953307780.pdfIn PDF document text
- https://marwaservicecenter.com/nbloom/fckuploads/file/lesafedeketuxovokuvot.pdfIn PDF document text
- http://gr-chem.com/upload/files/vudasavise.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137e06916fa5---27460520404.pdfIn PDF document text
- http://myucmas.com/userfiles/file/13817807700.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=photoshop+2021+keygenPDF 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_off0000f53b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF53B | 18156 bytes |
SHA-256: 65721dd88902ad920ab054ed6dd82288869de301be73149f11c90a2c7f7498d8 |
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font_01_sfnt_off00012493.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12493 | 10632 bytes |
SHA-256: 2a579eac2977f5becf3655a5a1303617e89c914c1c63a7c8717aef95b9c8224c |
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font_02_sfnt_off00013d06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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