MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of these links suggests an attempt to distribute malware or conduct phishing attacks, likely initiated via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://saeronbio.com/userData/board/file/90070012226.pdf In PDF document text
- http://etnorom.hu/pictures/37110201045.pdfIn PDF document text
- https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e54b2a67f5---6694650449.pdfIn PDF document text
- https://relaxbotanika.cz/ckfinder/userfiles/files/75682460799.pdfIn PDF document text
- http://indigobaby.eu/upload/files/vexolovalafasus.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131027d7871a---dewavinofafobiwofewe.pdfIn PDF document text
- http://njbeihang.com/uploadfile/file///2021090800560859.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136d33120925---pesabo.pdfIn PDF document text
- https://bdblue.com/ckfinder/userfiles/files/82615164697.pdfIn PDF document text
- http://sententtech.com/file_media/file_image/file/74678007985.pdfIn PDF document text
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/suvumufesebuz.pdfIn PDF document text
- https://livre-d-art.com/ckfinder/userfiles/files/24800702289.pdfIn PDF document text
- http://mgocsm.in/userfiles/file/88381139802.pdfIn PDF document text
- http://eventologia.com/userfiles/files/sawiwigedogax.pdfIn PDF document text
- http://happy-land.hu/editor_up/36160346254.pdfIn PDF document text
- http://dr-temt.ru/images/file/nemexemawamabaso.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16134fb7132eb5---16477417605.pdfIn PDF document text
- https://sakura-bashi.com/uploads/files/202109112107249962.pdfIn PDF document text
- http://stimatacasa.eu/userfiles/files/47732441353.pdfIn PDF document text
- http://artdealer.vn/upload/fckimagesfile/f777332db2c94ce8618d6c0d3089d552.pdfIn PDF document text
- https://madhubanindiancuisine.com/nbloom/fckuploads/file/sokoki.pdfIn PDF document text
- https://truckforceone.com/upload/editor/file/vekokavidezodekuzifima.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/38682558954.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=miss+you+quotes+for+wifePDF 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_off0000c8dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC8DD | 16552 bytes |
SHA-256: 7774435a69b965085b1722aad07b0217758458376568c2f43d090569a5295925 |
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font_01_sfnt_off0000f384.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF384 | 10336 bytes |
SHA-256: 3266b8a91e706336ec4e8ef520b6de3154cd7a232c9f27c3f9150b093f22aec9 |
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font_02_sfnt_off00010b1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B1E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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