MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document contains a large number of embedded links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The primary attack pattern involves directing users to potentially malicious content hosted on these compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://thanhlamresort.vn/wp-content/plugins/formcraft/file-upload/server/content/files/1608db74001fdb---49343370236.pdf
- https://aodaixuan.vn/app/webroot/upload/image/files/jirolijabufenodotadiv.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/beb5866ad67773525efe6a7fc5919dd9/zoxunizixerifekonopuzenaz.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/d6778070b846177182af1bb98090ec0f/riguduranikogusaden.pdf
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/56a1ca35d2a5a029e4747034efa7ec45/73490584346.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/9fafa07eb5b5906c361360a1a9e783d7/27748014785.pdf
- https://pluckywize.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc6050b4c38---6057837147.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/oqrjsjtqn6r7grp4qd8g1sh5l3/kalamegobesiratareludefa.pdf
- http://ngor2-3.com/file_media/file_image/file/nukikoxuporuj.pdf
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a14a2b5aa98---gitexazafurujufamaf.pdf
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/0dbbbbe48a55e4c7794f2cd994330d38/pinulurotuvabumupilavezap.pdf
- http://alphabodysupplements.com/newerac2c/userfiles/file/ziwekolawaruna.pdf
- https://vmwarts.com/ecovic/file/68119795019.pdf
- http://111-orte.de/testarea/cwsCMSlight/media/files/11941578444.pdf
- http://dichvu12h.net/userfiles/file/52628780676.pdf
- http://allasclub.com/campannas/file/tevufazemilurudiguxul.pdf
- http://ahcxdq.com/uploads/file/301031082708.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/89menip2pa3u1c706u5td57vef/furenepixegisafewopeje.pdf
- https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/be19dba6a9e4f84abc9bf746dcc70e30/69922460508.pdf
- http://adaviestransportltd.com/userfiles/file/latilibizafikurutuxupuwo.pdf
- http://itnetworkconsultingsf.com/helpdesk/app/webroot/img/userfiles/files/53402056225.pdf
- http://gongotour.com/FileData/ckfinder/files/20210630_434E2EB7F821ACD5.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d91b8bfdf0---wusutovagi.pdf
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/4bb1409c2e5ea792051119be3dff70bd/49388385785.pdf
- http://kbo.pl/ckfinder/userfiles/files/vodafekexele.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=a+beaker+is+used+to+measure+volume+in+what+metric+unit
- 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_off0000eca1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECA1 | 16792 bytes |
font_01_sfnt_off000104b8.bin700849a8c492f3a4adf3be9fa74b1ae9d2d83325874a1a3dc84aeb201fb93b87 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B8 | 11100 bytes |
font_02_sfnt_off00011e78.binb61878b0a9948d0ec8523c2da8c72d6e0ffa25b2827f03d379ba945ba2af72bd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E78 | 16952 bytes |
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