MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics as a link farm, with many distinct hosts and URLs pointing to potentially compromised CMS uploads. The ML classifier and ClamAV also strongly indicated maliciousness, specifically classifying it as a phishing trojan. The document's structure and embedded URLs suggest an attempt to redirect users to malicious content, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 6
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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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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://ngoctraithaibinhduong.com/uploads/news_file/peburuziwefix.pdf
- https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/4p4qujn808vrohvd0fmsbp142r/kinesuxap.pdf
- http://urbanconstructions.org/images/uploadedimages/file/59213716913.pdf
- http://nicenpos.com/userData/board/file/3039494989.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/48fb981debff291d52999533f7bc4e50/80441833347.pdf
- https://kaisar168.com/contents//files/61347003076.pdf
- https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/4fb532452088aa8b7d1d0a98d23495a3/dukavowadurupifabop.pdf
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/df3acb5918644cd82c0620cf44918cb6/lebumuwobikut.pdf
- http://nessium.fr/userfiles/file/70887842773.pdf
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160acd38418a77---votuxadig.pdf
- http://omeofest.eu/userfiles/files/66652429007.pdf
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa42e32ec6---jedufilodu.pdf
- http://iglozawiercie.pl/zdjecia/file/woxuposigabepugibozuta.pdf
- http://18554080.com/userfiles/file/24780831309.pdf
- http://driscollandgibson.com/images/edit_images/file/50066332235.pdf
- http://pc75.net/upfiles/file/1621567445.pdf
- https://alakharia.com/public_html/userfiles/file/11852327854.pdf
- http://www.thediethub.in/wp-content/plugins/formcraft/file-upload/server/content/files/160b55f7a82b94---60930439361.pdf
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc1c8808a8---5002837961.pdf
- http://asea-admin.com/_userfiles/file/20210505192345.pdf
- https://alice-immo.com/userfiles/file/kekutebawiragigurewa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=and+all+of+a+sudden
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ce6e.bin8e84527bbc420930a50bb61e077168720747c1818fbdbe6e6f659b92062adead |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCE6E | 10140 bytes |
font_01_sfnt_off0000e53e.binff1f925e21f6cd3a2e0b73dfdab4ca3ab190b4d35f5ebf6664bfdd376ea4e5cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE53E | 17572 bytes |
font_02_sfnt_off00011350.binfc96bb51e68212267b34b5acefce01e3ce1e469c7be8c0a453211fcdfa4f682a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11350 | 16120 bytes |
font_03_sfnt_off000128a3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128A3 | 16792 bytes |
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