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 ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple external URLs, some hosted on compromised WordPress sites. The presence of numerous links on disposable hosting and the use of UTM parameters suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://self119.net/upload/userfiles/2021/09/files/210912215945.pdf In PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613c5934b8afd---bivarufi.pdfIn PDF document text
- https://rjpexport.com/files/57798357627.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/16449384058.pdfIn PDF document text
- https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/95aafc2d2fffe76a0a3a510485fbbac6/31212084573.pdfIn PDF document text
- https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/5t34dte00scufbpamrcrc4kgjp/84728225959.pdfIn PDF document text
- http://vlajamo.cz/images/file/26952091742.pdfIn PDF document text
- http://teamtrinity.net/trinitya/file/virudulamizitugel.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///91399064024.pdfIn PDF document text
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/26676109185.pdfIn PDF document text
- https://ibliberia.com/ckfinder/userfiles/files/vibigefisaboxosaf.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/1613c40519aea2---pujil.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.net/ckfinder/userfiles/files/depunarepi.pdfIn PDF document text
- http://gocreate.termall.pl/upload/fck/file/31866662485.pdfIn PDF document text
- http://tuvanthanhlapcongty.biz/upload/ck/files/difikixi.pdfIn PDF document text
- https://lufty.cz/UserFiles/files/1523810082.pdfIn PDF document text
- http://michellenevinracing.com/FCKeditor/file/ziwenejukijineberof.pdfIn PDF document text
- https://suthuytinh.com/app/webroot/uploads/files/lawibitijezubuk.pdfIn PDF document text
- http://qwerty.pl/_data/file/72910032733.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136fc8565c25---fefitovo.pdfIn PDF document text
- http://bio86.fr/userfiles/fichiers/58244347727.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=ibomma+movies+in+telugu+2021PDF 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_off0000d9f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9F4 | 10900 bytes |
SHA-256: 0def28409abc55b1d7b64921977e14b8d9be28b6d131526caa7b2226c426f60c |
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font_01_sfnt_off0000f352.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF352 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010b64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B64 | 18428 bytes |
SHA-256: d134d5909f9d8f2c678327c3ace6de66f48de4ab510db271223fa963e130e374 |
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