MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains a link farm pointing to compromised WordPress upload storage, suggesting an attempt to host malicious content. The embedded URLs, particularly those with 'utm_term' parameters, indicate a lure to download content, likely a second-stage payload or phishing page.
Machine Learning
- Nyx PDF Classifier malicious score 0.9765
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://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bf1a9d0647d---78066206388.pdf In PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d657699aa9---tubeziwotojiwuluduf.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a79e5176cee---71531431469.pdfIn PDF document text
- http://szymonadamczyk.pl/uploads/fck/file/34859582674.pdfIn PDF document text
- http://themultifold.com/wp-content/plugins/super-forms/uploads/php/files/pj6mgcrklijv0f8h492nfr0bh1/nonulesafex.pdfIn PDF document text
- https://anmimar.com/royal/userfiles/file/nejumojiwilivupu.pdfIn PDF document text
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/57e8ff552b129b720221c7a4b2d81446/koxugufudumur.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/45a1729825b0a6ec669bddaa9e7801c1/11906110609.pdfIn PDF document text
- http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a51667c0cfa---14097693803.pdfIn PDF document text
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/ddc9c1c7a05cce89de6dad9a98e1edc3/xobelapulutexi.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/zapoxuziniputatowafo.pdfIn PDF document text
- https://tyeetomsfishing.com/userfiles/file/vodisixi.pdfIn PDF document text
- http://vizesblokk.hu/files/file/50785780252.pdfIn PDF document text
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/0f839462b5ef357646080e07e565a12e/mawajopen.pdfIn PDF document text
- https://drivetripper.com/userfiles2020/files/86794694657.pdfIn PDF document text
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/qku57c0tka66tq79oabf2t6i2b/dagugazesazaromazuge.pdfIn PDF document text
- http://heldermusic.nl/ckfinder/userfiles/files/78003250399.pdfIn PDF document text
- https://fjordancv.info/wp-content/plugins/super-forms/uploads/php/files/63dac070b21cdeac5506b6ce350e6710/lulijalebabod.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c8d52f7f4---36694250946.pdfIn PDF document text
- https://tailormade-sales-marketing.com/userfiles/file/74968047484.pdfIn PDF document text
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/u69hk46kfegjksihmi05qgj5n1/jonofesiropamoxakum.pdfIn PDF document text
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608362531382c---jezivapa.pdfIn PDF document text
- http://gediklimakinahidrolik.com/resimler/files/8114523993.pdfIn PDF document text
- https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/4fce0d87fdca2d6de213f88e3f6db327/bulajadaso.pdfIn PDF document text
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/41b7cabd7fd8b987191805a1cf26fd4a/17360336470.pdfIn PDF document text
- http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160941634047b9---5514984898.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=my+husband+warm+the+bed+free+pdf+downloadPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB53 | 16132 bytes |
SHA-256: eb83fb48a2f60ac59fad768156047f025764cad4052c8f34695a9c8dd2456ad8 |
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font_01_sfnt_off0000f0c0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0C0 | 16536 bytes |
SHA-256: a1bc15c51df3243062faaa0d1fdc7beef7e26e847efc5c2881164ce657d2f3c8 |
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font_02_sfnt_off00011b90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B90 | 11104 bytes |
SHA-256: 8c384d8389b90efd6dff720d9b91f030ceb942972da2e666e536b0d8f2442eae |
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font_03_sfnt_off00013523.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13523 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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