MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was 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 various domains, including compromised WordPress upload storage. The presence of 'utm_term' parameters in some URLs suggests an attempt to track user engagement with potentially malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://linyuepharm.com/upload/files/barexezaku.pdf In PDF document text
- http://propertiesforrent.com/userfiles/file///24874089229.pdfIn PDF document text
- http://chinajnbt.com/images/upload/File/kerajizutijulivaluremi.pdfIn PDF document text
- http://www.ih-consultant.com/ckfinder/userfiles/files/wumenasub.pdfIn PDF document text
- https://energooptima.hu/upload/File/72534023648.pdfIn PDF document text
- http://solarissoft.com/img/userfiles/files/getedofitozadivegedigogiv.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161396c96a5238---68453964541.pdfIn PDF document text
- http://perchegouet.com/ckfinder/userfiles/files/ropetonosebufosuk.pdfIn PDF document text
- http://consulcongress.it/uploads/assets/file/xogorilodabikuworafodupa.pdfIn PDF document text
- https://www.hinkler.com.au/application/third_party/ckfinder/userfiles/files/senelimur.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16132aba07ac9f---zuxavadewifeduvosi.pdfIn PDF document text
- http://gibisch.com/files/files/41072329587.pdfIn PDF document text
- https://alhurwallpaper.com/Files/files/88078724053.pdfIn PDF document text
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/vjefjbf0porlisnm79fc2j85k7/4486570032.pdfIn PDF document text
- http://drsrkbedcollege.com/ckeditor/ckfinder/userfiles/files/96851035448.pdfIn PDF document text
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/zupidurupavub.pdfIn PDF document text
- https://ymy-tea.tw/upload/files/66553730034.pdfIn PDF document text
- http://lynhuagiasi.com/Images_upload/files/fadatupebiwexidiwowev.pdfIn PDF document text
- https://alebusph.centralcms.cloud/galeria/files/54407453342.pdfIn PDF document text
- http://dakdekkersindex.nl/images/uploads/39430666263.pdfIn PDF document text
- http://ct-tci.com/cttax/userfiles/files/podawebidapudazuvofobaxix.pdfIn PDF document text
- http://englishkan.net/UserFiles/File/70370528218.pdfIn PDF document text
- http://rigosarchitects.gr/userfiles/file/jaduwilexodevivozafi.pdfIn PDF document text
- http://joeun-it.com/userData/board/file/25275983934.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=poweramp+v2+apkPDF link annotation
- 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_off0000da3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3E | 23156 bytes |
SHA-256: 29fe76238691d952adf18900cb7271d25c15014075362ce6e492e719bd57fb00 |
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font_01_sfnt_off00011792.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11792 | 10268 bytes |
SHA-256: ca459e33c0f258b218ca3e9543c0b17b3a063aac180b2524d502e3c369d31c3b |
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font_02_sfnt_off00012ed4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ED4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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