MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The presence of numerous links, including those with 'utm_term' parameters, suggests a phishing or spamming campaign aimed at driving traffic to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://haiannweb.com/uploads/files/tijejusafaxajemowu.pdf In PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0809395c2---nisigojazosepimavatawev.pdfIn PDF document text
- http://allamericannursing.com/userfiles/file/sodezakikupiraja.pdfIn PDF document text
- http://take114.kr/FileData/ckfinder/files/20210908_BAFE19EAE9E3EE97.pdfIn PDF document text
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/4gro3309j0ncnatc4sfs1oav70/90848793208.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/16144be63183f2---vuzojaxofej.pdfIn PDF document text
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16134a77cdcd42---levuzipowolikekudo.pdfIn PDF document text
- http://thestarbusan.net/FileData/ckfinder/files/20210904_A2A92DB4131C4736.pdfIn PDF document text
- http://jyjwqj.com/uploadfile/file///2021091908483022.pdfIn PDF document text
- https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/kilisizu.pdfIn PDF document text
- http://chinazzjx.com/d/files/kodixigepawanebada.pdfIn PDF document text
- http://aptekainternetowa.net/_mdm_apteki/file/jajaruwokusefo.pdfIn PDF document text
- https://remini.hu/userfiles/file/zuxosubuzuzan.pdfIn PDF document text
- http://amandamaitland.com/images/file/falib.pdfIn PDF document text
- http://zamgph.com/uploads/file/092227337439.pdfIn PDF document text
- https://bcbc3399.com/upload/files/2063943376.pdfIn PDF document text
- https://rougezenekar.hu/files/file/xovijolozulesowategulopu.pdfIn PDF document text
- http://derkwoo.com/upload/editor/files/31989407582.pdfIn PDF document text
- http://world-spa-resorts.com/dok/13437916565.pdfIn PDF document text
- http://metalzilemboeventi.com/userfiles/files/28857352286.pdfIn PDF document text
- http://lamekatus.com/uploads/ckeditor/files/fewuzolidubi.pdfIn PDF document text
- http://abbuffalowings.com/uploads/files/65381199928.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=mom+pro+apkPDF link annotation
- http://irodori.kir.jp/files/file/vomokinokevegikoxumok.pdfIn PDF document text
- 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_off0000de0b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE0B | 22656 bytes |
SHA-256: b0f8c31204ec518c44137336838bad3cb117ed625c0e78d8099d91d9cb3ed4e5 |
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font_01_sfnt_off00011961.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11961 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013177.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13177 | 9856 bytes |
SHA-256: 1ce5c2cc6f4449bc59cc923c0cf7102f0435ed9a2fe615d3fe3f4f23646acf38 |
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