MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF document contains a lure to install a browser extension or update, a common social-engineering tactic. It also includes numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://nomylo.ru/uplcv?utm_term=internet+video+download+manager
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/de8e6bbc64f2e3e873ed8fd3f5ea1d86/16713701521.pdf
- http://tajesink.com/Uploadfiles/files/14120144374.pdf
- http://argyleliquidations.com/userfiles/files/pimelipixuzo.pdf
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/lmi5fd66b5o1l72j67bg2333br/xepuleb.pdf
- https://ra7a7p-h3ba7.com/contents/files/43846952159.pdf
- http://top-caster.com/userfiles/file/31162187330.pdf
- http://lesmashclub.com/imgUpload/files/jinikavonuv.pdf
- https://whitesal.com/data/images/file/6861_20210910210101.pdf
- https://casasholidays.com/scgtest/team-explore/uploads/files/74707675256.pdf
- https://harmony.im/userfiles/file/91229307719.pdf
- http://ubestsports.com/imager/files/20210908045218.pdf
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f7d2cb635---gawiwusibalorisafop.pdf
- http://dayou.tw/uploadpic/files/202109110401257596.pdf
- http://pokewaveanaheim.com/uploads/files/75493841389.pdf
- https://jamurgoreng.net/contents/files/15152745177.pdf
- https://zebcom.in/userfiles/file/90518406864.pdf
- https://quangcaowebsite.xemlaco.com/uploads/files/38674718100.pdf
- https://snf.styleguides.ch/userfiles/files/97540669115.pdf
- https://worldcastlive.com/userfiles/file/15676452927.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613867b5160d6---dagovalitod.pdf
- http://philipp-haberland.de/images/upload/file/tojorusudiporajamubizetas.pdf
- http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/47201317521.pdf
- http://feminella.ro/upload/fck/pixif.pdf
- http://myepres.com/HotelEstimator/userfiles/file/2103696427.pdf
- http://www.gieskestukadoors.nl/ckfinder/files/files/wizujaduruduridavobir.pdf
- http://turinhotelcompany.com/userfiles/files/zegisovurebar.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_off0000eb77.bin6423b0f9c05f0c16a528a3cf0ad251a0cd1d9ea646701b804fe9a722c75e89fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB77 | 17728 bytes |
font_01_sfnt_off000119b9.bin1659a9c425d23124ded63c1a94237ef7812a76b5beb0dcd46890bf48f4d2ecb4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119B9 | 10528 bytes |
font_02_sfnt_off0001317f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1317F | 16792 bytes |
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