MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The primary purpose appears to be directing users to external, potentially malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9916
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://infrive.ru/uplcv?utm_term=leap+year+putlocker PDF link annotation
- http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16146014e89352---90830616845.pdfIn PDF document text
- http://firsttimehomebuyerstudy.com/images/file/mimikowamizelulefejini.pdfIn PDF document text
- http://strahyi.ru/images/file/73064097688.pdfIn PDF document text
- http://swvocal.com/data/se2/file/dalakataviwuput.pdfIn PDF document text
- https://hgb.se/filer/file/68895702016.pdfIn PDF document text
- http://changrung.com/ckfinder/userfiles/files/2767475297.pdfIn PDF document text
- http://web-news.eu/www/pkpar/userfiles/file/narudo.pdfIn PDF document text
- https://yaofangpeixun.com/upload/files/samumi.pdfIn PDF document text
- https://calprin.com/ckfinder/userfiles/files/fuxupakaxixopawunema.pdfIn PDF document text
- http://alfavit.tv/userfiles/file/pifiwuwulejivedisewos.pdfIn PDF document text
- http://studioindelicato.com/userfiles/files/88614489743.pdfIn PDF document text
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d7f606e08b---jevafuzib.pdfIn PDF document text
- https://copab.tn/216mag.svn/uploads/files/jivekewusokuxa.pdfIn PDF document text
- http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/16155f86fa224e---zenibudele.pdfIn PDF document text
- https://wojczak.pl/userfiles/file/66254209434.pdfIn PDF document text
- https://webrobogo.hu/kepek/64982143885.pdfIn PDF document text
- https://dubaimotorcycletours.com/uploaded_images/files/63833828860.pdfIn PDF document text
- http://bassonconsulting.mc/userfiles/file/zuwobewaweriwizekogomodo.pdfIn PDF document text
- https://ezastupitelstvo.sk/editor_uploads/system/files/barawavula.pdfIn PDF document text
- https://nomortiga.com/contents/files/43693301643.pdfIn PDF document text
- http://www.europesolidaire.eu/userfiles/files/74017816381.pdfIn PDF document text
- https://nilsahost.com/calisma2/files/uploads/nisidarenawutivuzeje.pdfIn PDF document text
- http://itcck.org/upload/editor/file/71302730027.pdfIn PDF document text
- http://nhasachconggiao.com/luutru/files/7520988602.pdfIn PDF document text
- http://thietkewebsite.btccorp.vn/uploads/files/37996612062.pdfIn PDF document text
- https://pristineleather.com/userfiles/file/vajapiloko.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_off0000b40d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB40D | 10268 bytes |
SHA-256: c0e34f1cf50bec1bcc76273e8e311f0247b7e81b9a5841d8d786c54a127de6ea |
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font_01_sfnt_off0000cb58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB58 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e36a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE36A | 15140 bytes |
SHA-256: 8b9a542483c7330fe28c2df3966700dfd4bf5e822c02c239083e8644365e533c |
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