MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics identified it as a PDF link farm, with numerous URLs pointing to potentially compromised or disposable hosting sites. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests the document's purpose is to redirect users to external, potentially malicious, content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://syntra.pl/userfiles/file/tudoxizalu.pdf In PDF document text
- http://tatugigo.com/ckfinder/userfiles/files/jozulatinujiros.pdfIn PDF document text
- https://gaseg.com/wp-content/plugins/super-forms/uploads/php/files/55q2nemu8b2de9ur9hqs24l2fv/90608216288.pdfIn PDF document text
- https://mangonebike.com/uploads/file/tejedazaxigor.pdfIn PDF document text
- http://studiomilano.eu/userfiles/files/59296331820.pdfIn PDF document text
- http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3de90d91f4---40918311740.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/050e6cfd0b832df46975799a20696f35/43498198909.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/b9b9962d408c7877f700cc743572563f/zidobizajazu.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/160aae269e71e4---28972727236.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/devabufisizegavoxuxazebit.pdfIn PDF document text
- http://debden.org/userfiles/file/bumozakipegarafofo.pdfIn PDF document text
- http://highlandlynxotic.com/clients/7/73/73cf6ae24f8ea70eb1cbac1dff6b0f9e/File/fabivovofamobomibux.pdfIn PDF document text
- http://montpellier-businessplan.fr/mbp/upload/images/images/upload/ckfinder/30635387198.pdfIn PDF document text
- https://weinquartier.at/wp-content/plugins/super-forms/uploads/php/files/57634920199e8ce81506f097e3085d5a/xovov.pdfIn PDF document text
- https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4339628830---54475715261.pdfIn PDF document text
- http://salinahighschool1968.com/clients/3/33/33fcb9b832a528c934b1ac42c6b88a99/File/92720827665.pdfIn PDF document text
- http://cbstav.cz/file/pibowojatol.pdfIn PDF document text
- http://familie-schiecke.de/images/file/5521899633.pdfIn PDF document text
- http://storemisr.com/uploads/files/lisuworunimurab.pdfIn PDF document text
- https://basisangka.com/contents//files/tonanemanino.pdfIn PDF document text
- https://argekaucuk.com/nbg/upload/files/bolam.pdfIn PDF document text
- http://hamyarsanatco.com/ckfinder/userfiles/files/dazisizogufixuvizapu.pdfIn PDF document text
- http://drzwiukryte.pl/userfiles/file/siwakuzibamapoxi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=i+have+a+dream+a+song+to+singPDF 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_off0000db15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB15 | 10668 bytes |
SHA-256: fbdf99cc46d455d2b5bdc21b9a4361ecd5ebed261082befcf89073c6be59758e |
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font_01_sfnt_off0000f323.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF323 | 17224 bytes |
SHA-256: 483f016612b6b8d76c7ca97b1a5ca8875516ba2d0fd7af69bf5ebbb9d0f73347 |
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font_02_sfnt_off00011fbd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FBD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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