MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Numerous heuristics point to the PDF acting as a link farm, directing users to compromised WordPress uploads and other disposable hosting sites. The embedded URLs, such as 'https://infrive.ru/uplcv?utm_term=battleheart+2+free+download', suggest a lure to download potentially malicious content or engage in phishing activities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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=battleheart+2+free+download PDF link annotation
- http://sinosteelcode.com/filespath/files/20210919130245.pdfIn PDF document text
- http://carsonpokebar.com/uploads/files/79802989607.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1614b73efb0401---37199393448.pdfIn PDF document text
- http://puginternational.com/ckfinder/userfiles/files/panemusifidopatarikobi.pdfIn PDF document text
- https://path.mn/userfiles/files/joxosumerilolefubalo.pdfIn PDF document text
- http://lifeline-sports.com/files/file/mafamaguxigaze.pdfIn PDF document text
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/5464ae1e6be124e87a8a881afe59bdbf/soxupuvibidinalirefavex.pdfIn PDF document text
- https://fu-ko-property-agency.com/webroot/editor-uploads/files/46387795470.pdfIn PDF document text
- https://www.singaporemedicalclinic.com/ckfinder/userfiles/files/falalakifonava.pdfIn PDF document text
- http://farmaciafoglia.eu/userfiles/files/48200361492.pdfIn PDF document text
- https://agmatbaa.com/upload/files/31030959900.pdfIn PDF document text
- https://ocvirapuato.com.mx/wp-content/plugins/super-forms/uploads/php/files/38c0f272216ddd2c4b6c6f8f0b868e8f/56075392861.pdfIn PDF document text
- https://bushregenerators.info/userfiles/files/sofokaxowitamoxu.pdfIn PDF document text
- http://gardatrans.com/content/Files/wigagoxa.pdfIn PDF document text
- https://goez1.com/10005001208290177/ckfinder/userfiles/files/25445550010.pdfIn PDF document text
- http://thebankcardservices.com/uploads/files/55540100813.pdfIn PDF document text
- http://musicincw.com/fckeditor/userfiles/image/73049272195.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/1613277b1141ff---xisumenonolovuf.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614252dc8930e---75943382993.pdfIn PDF document text
- https://sapporopools.com/contents/files/gakawovisemeruximi.pdfIn PDF document text
- http://centroolosprato.it/userfiles/files/64691063752.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/gilof.pdfIn PDF document text
- http://aaas.handyfriendship.com/upload/files/3776649997.pdfIn PDF document text
- https://www.rosebankprimary.co.za/inc/ckfinder/userfiles/files/60928390314.pdfIn PDF document text
- http://xhiehchin.com/Xhieh_News/_file/zodado.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_off0000b276.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB276 | 16356 bytes |
SHA-256: 05452dfbc8ec558ee4c7b30052102dd85c88f592cfe9fae6240ddc3103ccf6a3 |
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font_01_sfnt_off0000dba5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBA5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f3bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3BC | 10448 bytes |
SHA-256: b903bb90bfae4a130530b4050647575da31e0c19308f5ee2fbfef70ea9ea2083 |
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