MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains embedded JavaScript and numerous external URIs, many of which point to disposable hosting or compromised CMS upload storage, indicating a link farm designed to redirect users. The presence of embedded JavaScript suggests an attempt to execute malicious code, likely to facilitate further compromise or phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://around-sicily.net/userfiles/file/fudekejezipuka.pdf
- http://groupementpecheduloir.com/ckfinder/userfiles/files/pifemibimexivexobekituzum.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/47784eeb4373986f6f870c4b46d82f38/wapanexozuxuluteraxuk.pdf
- https://ipssecurityconsultants.com/ckfinder/userfiles/files/59007669385.pdf
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/burijuresonepiwitexi.pdf
- http://koreabulk.net/userData/board/file/33368636453.pdf
- http://landonintergroup.com/ckfinder/userfiles/files/23402415226.pdf
- http://lingeriedediva.com/UploadFile/file/2021091021314173499.pdf
- http://konstruktor33.ru/app/webroot/files/files/57976421477.pdf
- http://benhvienlaptop.biz/userfiles/file/petokezujesezasoduxunid.pdf
- https://comillaspostgrado.es/userfiles/file/bevozesola.pdf
- http://rassadaspb.com/new/files/file/tapajekupos.pdf
- https://markyatirim.com/resimler/files/27135891223.pdf
- https://pierrelemagicien.com/userfiles/file/wasukamod.pdf
- http://studio-orlandini.com/userfiles/files/41040349390.pdf
- http://mxag.com/upload/browse/file/sujuwisa.pdf
- https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/b03c157aace81b5578c3f3d2231528de/55517318749.pdf
- https://mmoxx.mn/userfiles/files/zedatuzewenuromuxuniz.pdf
- http://galluccifaibano.com/userfiles/file/52813003524.pdf
- http://adams-gold.ru/archive/image/file/sosev.pdf
- https://finliz.lt/i/File/vodezoxiris.pdf
- http://automozg.by/upload/editor/files/mutefapoma.pdf
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6b1b11d68---15657129176.pdf
- http://suliaok.com/v15/Upload/file/2021910628219489.pdf
- https://oklogistic.lv/upload/file/kuzewomajoregejo.pdf
- http://autosvanbeek.nl/mindcms/js/ckf/userfiles/files/65716889118.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=picsart+premium+mod+apk+latest+version
- 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_off0000b930.bin8437ce490046d001ff298bb86ac560e041a70d2ca270f45bf87145a25da9807e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB930 | 15288 bytes |
font_01_sfnt_off0000dfae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFAE | 16792 bytes |
font_02_sfnt_off0000f7c5.bina63793aeb86eb47cfc220d8ea761a55501e36f95f29191e874c2f94ab662fa4f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C5 | 10932 bytes |
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