MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple external websites, some hosted on potentially compromised CMS platforms. The presence of numerous unknown URLs suggests a phishing or spamming campaign aimed at driving traffic to these sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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 http://bigdoughpizza.com/uploads/files/96693189605.pdf
- http://zbraneklapka.cz/ckfinder/userfiles/files/12361038451.pdf
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160a88f8cba06f---40941998855.pdf
- http://accessiblevehicleservices.com/userfiles/file/zikago.pdf
- https://fotojursa.cz/userfiles/file/jimega.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/2b7354ece8d27f2c61fe22b57bebe56e/20450682140.pdf
- http://xn--80akij1ajew.xn--p1ai/wp-content/plugins/formcraft/file-upload/server/content/files/160e6b3fedb83a---zujisolitepaleten.pdf
- http://myflora888.com/ck_files/files/14996667540.pdf
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160df854006f86---86675212071.pdf
- http://sovaimm.it/userfiles/files/valomigufukibupisobowum.pdf
- http://studiofantino.it/userfiles/files/wafovogizubidonemefu.pdf
- http://shinies.ru/img/lib/file/difexekalibeteguso.pdf
- https://sellerflows.com/wp-content/plugins/super-forms/uploads/php/files/362c682b9fda81ef2ed0813870b8e04d/41380762620.pdf
- http://zovsh.com/Uploadfiles/files/22668469769.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1f42bb6c7---gevesegiwafojanekuje.pdf
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/22fa89ebe73ffcf451ae92425266ecb3/71565883973.pdf
- http://akinmedikal.com/uploads/file/raguwedenojarijubakumij.pdf
- https://dbjadow.pl/attachments/file/6703038196.pdf
- http://passionsavannah.com/clients/0/0a/0a61c075fa1d7d91f8ce2ef588f7e9ce/File/60982282603.pdf
- https://uleiuri.ro/userfiles/file/75370022695.pdf
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b23380016e2---81730194012.pdf
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d82146cbc5f---gixovosemusefara.pdf
- https://mebelpozakazu.ru/wp-content/plugins/super-forms/uploads/php/files/965cc284c27b114341ec22182fd19485/28011287348.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=relationship+between+frequency+and+wavelength+of+electromagnetic+waves
- 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_off000189af.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x189AF | 16792 bytes |
font_01_sfnt_off0001a1c1.binc3cecb58a8f8aa48242f4e36d0fedf1138e89d0ff883aa9916c3fbb53285c92c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A1C1 | 18940 bytes |
font_02_sfnt_off0001d45d.bin7e47bc39219ef2ff268263feadb445089ef2bf2d6cc606d61c47a865651ca0ac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1D45D | 11764 bytes |
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