MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous embedded URLs pointing to PDF files hosted on various websites, some of which appear to be compromised CMS uploads. The presence of 'utm_term' parameters suggests potential SEO manipulation or tracking, and the overall structure points towards a phishing or content-distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://coretry.ru/uplcv?utm_term=how+to+find+perpendicular+equation PDF link annotation
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd8a603a65---zenarerobareromamap.pdfIn PDF document text
- http://consade.com/userfiles/file/majotenemak.pdfIn PDF document text
- http://daiwavn.com/uploads/image/files/16529816976.pdfIn PDF document text
- http://savages.lu/imagesRTE/files/gelipebu.pdfIn PDF document text
- http://epwuae.com/userfiles/file/40106551164.pdfIn PDF document text
- https://glaskunstcentrum.nl/images/file/wemegedibevov.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/3d4adf6718eb3205524b97aea77ec1b6/1501491950.pdfIn PDF document text
- http://grupopiscis.com/upload/files/3408373128.pdfIn PDF document text
- http://gaudi.tw/upload/file/85846570498.pdfIn PDF document text
- http://partner-support.net/user_data/userfiles/files/58468506359.pdfIn PDF document text
- http://kedehg.com/ckfinder/userfiles/files/nepugowudojep.pdfIn PDF document text
- http://jhdjt.com/images/upload/File/89911778494.pdfIn PDF document text
- https://theshamrockpublecco.it/file/20126797236.pdfIn PDF document text
- http://maslag.eu/userfiles/file/71405199252.pdfIn PDF document text
- https://ezgoe.com/10005001208290177/ckfinder/userfiles/files/47464744044.pdfIn PDF document text
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/nk7t1c0duqjdumfdkpeplukhtu/60458617392.pdfIn PDF document text
- https://ltes.tw-goods.com/UserFiles/files/1024594799.pdfIn PDF document text
- http://medtravel.pro/images/hand_uploaded/files/33632937998.pdfIn PDF document text
- http://xy-interior.com/uploads/files/202110012012583213.pdfIn PDF document text
- http://michellenevinracing.com/FCKeditor/file/69032250412.pdfIn PDF document text
- http://lgassociates.in/uploads/dumijigidudezavuw.pdfIn PDF document text
- https://arerp.kr/data/file///dawogiwoxotiz.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b212.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB212 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA29 | 10768 bytes |
SHA-256: 50a13948b0df2570bdf28b4cfdbe1ccc037b80703285dd7f35463aa8ffbffb73 |
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font_02_sfnt_off0000e2ce.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2CE | 16960 bytes |
SHA-256: 0a43e87e3d6311d7f2e035964d696d28a44af5ed4b1073181b349762fd5870e2 |
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