MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document is flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document employs a social engineering lure, instructing the user to install a browser extension or plugin, which is a common method for delivering malware or stealing credentials. Several URLs point to compromised WordPress sites hosting PDF files, suggesting a distribution mechanism involving these compromised hosts.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 8
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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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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://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e3df38f0a---34612864597.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a00d94a5b1---69670954095.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/51125957d8416a97f94d10bd9689befe/32492451203.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092c74a15b4f---muzaw.pdf
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/e8e5c8f46c8399ce64e1a105a03484a7/2654972261.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/a591500691e95b844969cdcf85562b83/zexoj.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c8f88724144---55455830150.pdf
- http://annamsaigonlaw.com/upload/files/rujodilup.pdf
- http://nail-free.com/ckfinder/userfiles/files/31762368710.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a39690921e3---74727376218.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a2fc1ac96---72303461904.pdf
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1bdd3876---nasewegedadonono.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca379f2934---wikepukiwegagob.pdf
- http://bubblesoflove.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608bcfd8e5abd---ravokiga.pdf
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/f8fefb7f6c4d2ff6dbe36d22882b26cf/16936938287.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/clhphs3bv7f80kpa6ltgkls8jr/tulesipufibifur.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c64b5d8fc50---zoretivukotadarakikubo.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef77609987---47654713195.pdf
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/3f521848916f1a536e68a03802ea46ad/55705371612.pdf
- http://dhsclassof70.com/clients/d/d1/d13f49183e6b2ef720c1f353b43de0f2/File/gutajajubujixeketatovasa.pdf
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/senolo.pdf
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/03c49a9c02830c58516a7eda0f57234b/69979697926.pdf
- http://shs1977reunion.com/clients/41590/File/6917448522.pdf
- https://airflow-skateboards.com/upload/file/56118783785.pdf
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2f27b4324a---vikuvajuxakevufirinexibi.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=red670+technical+manual
- 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_off0000e6f3.bin43623ce717bb7a4a8eb945452104d312857d2daefdb17bd1ba8b8a5627fa0462 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6F3 | 10732 bytes |
font_01_sfnt_off0000ff68.bin43759b926fabeb6fa1e555538592bc81f3347b1583eff8b11b31786e155d42d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF68 | 16528 bytes |
font_02_sfnt_off00012a22.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A22 | 16792 bytes |
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