MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains a large number of external links, many pointing to PDF files hosted on potentially compromised or disposable domains, indicating a link farm designed to distribute malicious content. The presence of embedded URLs and the nature of the heuristics strongly suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9907
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://zjqzzx.com/uploadfile/file/2021081521460273499.pdf In PDF document text
- http://fygl.net/uploads/file/29213148402.pdfIn PDF document text
- http://centromedicoveterinarioadda.com/userfiles/files/foretifatinagirigagun.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/2c5ibe6u0bcscnf7un585tljfg/7882351239.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093aeb29dfab---97569118935.pdfIn PDF document text
- http://leaguengn.com/userfiles/file///vimujerukorodawosirugine.pdfIn PDF document text
- http://alibabashipping.com/userfiles/file/28698049450.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b8266a90129---48119413305.pdfIn PDF document text
- http://amphorabeautyclub.com/campannas/file/sijovujelorafulijodoluze.pdfIn PDF document text
- https://www.alignerco.ca/wp-content/plugins/super-forms/uploads/php/files/2b1924bf353e6deffe59788a6955a883/26604370009.pdfIn PDF document text
- https://tonitomov.com/picture/file/muxagu.pdfIn PDF document text
- https://altstudio.be/app/webroot/uploads/file/93528599286.pdfIn PDF document text
- http://domeinbeverdonk.be/assets/files/file/9858930448.pdfIn PDF document text
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/djsv31rs47kk4n5pjn127jaa3t/waxuzulagotiwofefapo.pdfIn PDF document text
- http://savemaxint.com/files/file/texobujanaruw.pdfIn PDF document text
- https://botorka.ro/userfiles/file/podezozazoluwibeturepuv.pdfIn PDF document text
- https://coevent.ru/upload/files/zitik.pdfIn PDF document text
- https://anakaygame.com/calisma2/files/uploads/41915622505.pdfIn PDF document text
- https://dienlanhhonganh.com/images/pic/file/48601189207.pdfIn PDF document text
- http://bet-balance.com/userfiles/file/redopumodobovixumelav.pdfIn PDF document text
- http://www.optionassurance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609974c299415---38394932807.pdfIn PDF document text
- http://veterina-hrib.cz/user-uploads/files/nuzepunigakokugop.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b3fd7ea0253---zanilofotonipufifibopaj.pdfIn PDF document text
- https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/160e7b50803c27---dazuxigoduj.pdfIn PDF document text
- http://quangcongluc.com/upload/files/senakopoto.pdfIn PDF document text
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/1606f5e373171b---36415814192.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ac2c40165c---88178116927.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=science+question+answer+9th+classPDF 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_off0000c07b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC07B | 10904 bytes |
SHA-256: 9ae5a1dd63cabfe2e1b14cf02ecf307643c43452ce9af32f36bba7ed0e612cf6 |
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font_01_sfnt_off0000d9b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9B9 | 15676 bytes |
SHA-256: 8798c4cc24070735c52d18126502dbe17f5a619cdd5fce91e3b28ee27f2cf5ee |
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font_02_sfnt_off00010185.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10185 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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