MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple distinct hosts, many of which appear to be compromised CMS uploads or disposable hosting. The embedded URLs suggest a phishing or redirection scheme, likely intended to lead users to malicious content or exploit kits.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/21353a5330eb0c19b084eb36d7600ce1/88962049589.pdf In PDF document text
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/b1dad9a5d9275d66da2814117c2a7119/lijuwa.pdfIn PDF document text
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607119681a18e---fowekufotufegobolove.pdfIn PDF document text
- https://cakenepal.com/userfiles/file/jowak.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/alq2aerds8mnr4sa8qcvtf7rbq/fuderumibiwi.pdfIn PDF document text
- http://alhouti.com/userfiles/file/35712907690.pdfIn PDF document text
- https://allmassage.net/upload/file/20210516100536.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16086b72badc15---tifuvokolepajut.pdfIn PDF document text
- http://begemot-rus.com/uploadfiles/file/2021052722565773499.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/133dc9abce42218b0c799f9331e532bc/89779066758.pdfIn PDF document text
- http://reszke.pl/fckeditor/editor/filemanager/connectors/php/file/zozesemifisago.pdfIn PDF document text
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/91ff9ae30ee4b2b9b598a15e6e9c8dba/71570586310.pdfIn PDF document text
- https://jfefood.com/wp-content/plugins/super-forms/uploads/php/files/93d103312f764c41c3d4f211eb2d714d/vigiguma.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/160d2afec586a9---42981194298.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c42aea1ce61---xofonojijuzuwipipebol.pdfIn PDF document text
- http://furkansigorta.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160ca1d91bf0f7---6380568276.pdfIn PDF document text
- http://jvcc.cn/ckfinder/userfiles/files/2107042227489227687mwpt.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/c68f0b3e67226a6166835a601b4dd0e5/wesukibowudifiv.pdfIn PDF document text
- https://ajitcoatings.com/uploads/40625862723.pdfIn PDF document text
- http://mariopresto.pl/userfiles/file/saruxul.pdfIn PDF document text
- http://metapolar.hu/tmp/gomaj.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080bdd868c83---31975503925.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/fbf8e2c1ed81ed40a0eff29c55f4aba5/sezeposixabumubi.pdfIn PDF document text
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c18848ad1e---72243469361.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=rude+quizzes+questions+and+answersPDF 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_off0000f414.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF414 | 10632 bytes |
SHA-256: ee040a24de212b3c254186bede48e1257a71879b7f25e1a2fc0ae255b7ec53cc |
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font_01_sfnt_off00010c79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C79 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001248b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1248B | 17356 bytes |
SHA-256: e0c54c8cb8c51e3d5cb927d223ecb91b971cc5165b7663b2dba4fc0440c7532d |
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