MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are designed to lure users into clicking, potentially leading to further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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 https://infrive.ru/uplcv?utm_term=how+can+i+update+my+samsung+tablet PDF link annotation
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/3a068ab973c8e0a4cdcf5e40e5fc9110/75317095036.pdfIn PDF document text
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c6379e43748---vuxux.pdfIn PDF document text
- https://bikeid.net/ckfinder/userfiles/files/risegagedujejukaweno.pdfIn PDF document text
- http://pc75.net/upfiles/file/1623608148.pdfIn PDF document text
- http://sistersaviopublicschool.com/userfiles/file/41722593744.pdfIn PDF document text
- http://gayaarchi.com/userfiles/file/20210703011858.pdfIn PDF document text
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160a5bfbbd42f1---larijunekorabereliko.pdfIn PDF document text
- http://massimobertoarchitetto.com/userfiles/files/mixiloga.pdfIn PDF document text
- http://supragyn.cz/userfiles/file/23585880845.pdfIn PDF document text
- https://amd-export.com/site/upload/file/90099207565.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/24971274170.pdfIn PDF document text
- http://jucal.es/images/file/fuxoxupusagogusop.pdfIn PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c4685d08ff9---wuluredirojojerikazo.pdfIn PDF document text
- http://lorichphoto.com/pictures/file/gepumatimilojulibowabisa.pdfIn PDF document text
- https://mbamantra.com/ci/userfiles/files/83714819468.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/zutujanejikevikizutos.pdfIn PDF document text
- https://xanbiente.de/userfiles/file/46297432519.pdfIn PDF document text
- https://zzhqhi.com/d/files/31496472155.pdfIn PDF document text
- http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6d034e261---81168473123.pdfIn PDF document text
- http://stphilomenaonline.org/userfiles/file/busupupulutup.pdfIn PDF document text
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be72a1dfe22---voramanamajatizof.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_off0000f5cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010dde.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DDE | 17340 bytes |
SHA-256: 11a8b4dd3a8f344708e60743e9d7f9fff2712cc22c8fbe4b5d20f87f56de0c46 |
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font_02_sfnt_off00013b74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13B74 | 11188 bytes |
SHA-256: 98c94416889a62d745b70e007e451de0ca9ac0bb34bc2a8499bf97a515cfd632 |
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