MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of a link farm pointing to numerous domains, many of which appear to be disposable or compromised CMS uploads, suggests a phishing or malware distribution attempt. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure points to a malicious PDF designed to redirect users to potentially harmful content.
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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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://muzeumostrowiec.pl/obrazy/file/50003004035.pdf
- http://sllight.ru/design/img/upload/file/tasedisawifofulojunino.pdf
- http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9263dce4f---ledugiw.pdf
- http://pressvaluation.net/userfiles/file/27716031877.pdf
- https://zemiigori.com/uploads/file/sumezegenovoravefi.pdf
- http://moestuinwebshop.nl/userfiles/file/nivupig.pdf
- https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc87ecb4818---nerokumumera.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/56d323a5c6744be9c88777e6f09675dd/fimuxu.pdf
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/2c298f43bfff8545c06aeb7bfe07a638/82772212846.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/2lltaqjvufkpv225hdkhj7jtfj/6787238616.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/bc8f04efae5f3651d2d8cc0f715a2866/gilazife.pdf
- https://bczenekar.hu/files/file/sisumazo.pdf
- http://beetsom.com/PROGRAM_FCKeditor_UserFiles/file/1170065973609fa796d0c7c.pdf
- https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160805f7dce29a---85549562596.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a0d7a05a---26469431365.pdf
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/df7ff6a8fe909e38a25a1e6971dd54ab/59578732578.pdf
- https://xistenze.com/files/files/gulurasetin.pdf
- https://dakhoathienhoa.net/images/files/baribiragunisipebim.pdf
- https://soechi.id/userfiles/file/28873387985.pdf
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b327deff2d---50255505756.pdf
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/10nocii04e6j9m3um4h4hnb811/74353204711.pdf
- http://wanyuantemple.tw/userfiles/file/dujaxoxipujumabiz.pdf
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/10cd5637bdde7d7d2301fdb5d6892639/57210314026.pdf
- http://skybuildinfraprojects.com/uploads/16561055008.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/hddplmndo340mvu6tiqb9kr6t7/winotawukimawen.pdf
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/fa810863d2234f4fa947d90a6d90e430/2463233542.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=user+stories+in+testing
- 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_off0000eeb2.bin3b5ee0fdc43d3bdb2da249a1700fd890b84ead29f2fa7de99e1330fe1615a22a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB2 | 10080 bytes |
font_01_sfnt_off00010547.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10547 | 16792 bytes |
font_02_sfnt_off00011d59.bin553789fe61dbcc09a7121d8bf564cd196bcf2ea62cbb392d6fdc4edc80cc94f7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D59 | 17304 bytes |
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