MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier indicating a high probability of maliciousness. It functions as a link farm, presenting numerous external URLs, many of which point to compromised CMS uploads or disposable hosting. The presence of a 'download button' lure suggests an attempt to trick the user into clicking these links, likely leading to phishing or further malware downloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://nomylo.ru/uplcv?utm_term=spd+frp+fastboot+tool
- https://dodomacnosti.net/data/file/85935335420.pdf
- http://materialdeestudo.top/userfiles/files/42523473396.pdf
- http://snap-drone.com/userfiles/file/8628013158.pdf
- http://waxiangyuan.com/upload_fck/file/2021-9-4/20210904043752708653.pdf
- http://harckocsik.hu/userfiles/file/gelugojavafewogawukipasod.pdf
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613521a7d9ed6---menomububafik.pdf
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/161355b0d7c788---lefusifunebilaxuz.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c9cb14fab3---lepadafis.pdf
- https://www.spitalmoldovanoua.ro/ckfinder/userfiles/files/85986891910.pdf
- http://xn--9w3b270a7kf.kr/ckfinder/userfiles/files/989379087.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16139d55778f36---97109444609.pdf
- http://nrgmedia.hu/files/file/bejagalowuvuverowiligun.pdf
- http://think6.net/ckfinder/userfiles/files/20210907050745.pdf
- http://cavusofis.com/images_upload/files/sorasufezalifelegewu.pdf
- https://sandp-engineering.com/ckfinder/userfiles/files/46599944447.pdf
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161315d8352aff---nawegopujimobemegesizifap.pdf
- https://blsautomation.com/ckfinder/userfiles/files/27489326634.pdf
- https://pepsima.biz/files/file/moxofidupidiruwosoka.pdf
- http://easyliveconstruction.com/ci/userfiles/files/36066785918.pdf
- http://synphabase.ch/upload/file/2702014305.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd1b5c5b98---95057209651.pdf
- http://fra2ange.it/userfiles/files/30137601277.pdf
- https://smlstripedbass.com/home/rock/public_html/ckfinder/userfiles/files/pufunujixelogubekiw.pdf
- https://izr.fr/files/ladamukeke.pdf
- http://hwayoung.kr/upfile/files/gikonatuver.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_off0000e5a6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5A6 | 16792 bytes |
font_01_sfnt_off0000fdb8.bin39827f8dac7db56f6aa75b7fa5286395af418d1697675b205004bd7f878ea80d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB8 | 17988 bytes |
font_02_sfnt_off00012c86.binbf46eec9130c06a19560200118f594749dc71fb8a3da54e7981d7c5b4ad308de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C86 | 10376 bytes |
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