MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.007 JavaScript
This PDF document exhibits characteristics of a phishing lure, as indicated by the 'SE_INVOICE_LURE' heuristic and the presence of numerous external links. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded links, such as 'https://inwebjor.ru/uplcv?utm_term=how+to+write+an+analytical+thesis+statement', likely lead to compromised websites or further malicious content, aiming to exploit user interaction.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://inwebjor.ru/uplcv?utm_term=how+to+write+an+analytical+thesis+statement
- http://kutscher-customs.de/gfx/userfiles/files/gaxikidijamive.pdf
- http://www.johnknox.ch/wp-content/plugins/formcraft/file-upload/server/content/files/161394e749a669---lubuwegupifa.pdf
- https://umartravel.com/files/fabefuvifinatusi.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/16133bc73a2f87---8300781501.pdf
- https://www.abandassociates.com/ckfinder/userfiles/files/gumifutosobaxirekeviru.pdf
- http://msslink.ru/userfiles/files/vunaxukewufuvanow.pdf
- https://nolimitscenter.be/peausitive/images/FCKeditor/file/28697262978.pdf
- https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/ubbdtuae8bvsluued4m3fcfj70/rekuketedewudasomotubasib.pdf
- http://lawfirm.vn/MINH/user_files/file/30202622074.pdf
- http://arcenevents.nl/site/upload/files/47531256872.pdf
- https://agrilaui.com/userfiles/file/mugor.pdf
- https://cli-kh.com/uploads/files/202109180633338216.pdf
- http://e5tbr.alruaa.com/ckeditor-ckfinder-integration/uploads/files/48157578205.pdf
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132d7c30faf1---62910382552.pdf
- http://foreverymuslim.net/home1/forevev3/public_html/foreverymuslim/upload/file/laverafufasisojat.pdf
- https://raovat72.vn/uploads/news_file/bototonavogufigo.pdf
- https://dcicz.org/userfiles/file/rofexodakemowadok.pdf
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/c8dr6v9qpp6pvhfnvbvg4p5jql/14066906526.pdf
- http://freestyler.cz/img/file/bevasugamixuzo.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134fc563a1e3---64517660745.pdf
- https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/tujugikatepadivovunalire.pdf
- http://www.lbtfilm.com/uploads/files/wozibumefureraxenexel.pdf
- http://pphu-joanna.pl/fckpliki/file/69552152600.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161396fb6a6533---79831508136.pdf
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/f8e9f6b276b8a0448696cbb85b6f0174/jodebevefisiduv.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/731681bbffb441b5dac3d72a2345a630/jikumoro.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dad6.bin57fa6260758fa931222903a9354c6f1910e8e3a4d61ed910469664115ea57e47 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAD6 | 16940 bytes |
font_01_sfnt_off000106a0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106A0 | 16792 bytes |
font_02_sfnt_off00011eb7.binb4616232d8a68219994bbc5be7d106ca3fbd230b5c06d3ec851fa61a56e16231 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EB7 | 10684 bytes |
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