MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of external links, many of which point to compromised WordPress upload directories. The ML classifier and ClamAV heuristic strongly indicate maliciousness, classifying it as a phishing trojan. The primary attack pattern involves directing users to potentially malicious sites through a link farm, likely for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://www.malagatour.es/ckfinder/userfiles/files/35574035589.pdf In PDF document text
- https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a90a98310ca---86608032954.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b759aed2000---jujifiwobefididexitevew.pdfIn PDF document text
- http://cuatro-pr.org/sites/default/files/file/gojosufititasunazomebuse.pdfIn PDF document text
- http://csc-020.com/userfiles/file/20210714085912_uff3hg.pdfIn PDF document text
- http://yngc.ru/admin/ckfinder/userfiles/files/10819390592.pdfIn PDF document text
- https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160c873f9bde97---ferarere.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160790f6cd8acf---lifutabife.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/20751273133.pdfIn PDF document text
- http://studiotecnicopetrillo.eu/userfiles/files/dejifojepejajavodadi.pdfIn PDF document text
- https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/e4445ms7i88qhvp9vnivoivfvg/lesagowaduvijepetavune.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/movubomipinutika.pdfIn PDF document text
- http://www.ecvbrass.ch/user/web/file/25347050828.pdfIn PDF document text
- https://iphonerepairservice.nl/app/webroot/files/userfiles/files/68330085215.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/160a929ea7abc2---41414070787.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/647997bb7b3a6c641d3d4e609e1b6266/42729838832.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd5d842da4d---3834995091.pdfIn PDF document text
- http://www.photonics-science.com/ckfinder/userfiles/files/gotirelanar.pdfIn PDF document text
- http://sunnysolutions.it/uploads/assets/file/jupagepi.pdfIn PDF document text
- http://karunb.com/UpLoads/files/28326221604.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/865b1ea46dbb82428d71b09bc62cef2b/8722017790.pdfIn PDF document text
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16073cd08a7b83---xisidasofufazaxowaneboxef.pdfIn PDF document text
- http://biaikatolikus.hu/files/file/xowalo.pdfIn PDF document text
- http://englandmatchshirts.com/assets/file/xenusipot.pdfIn PDF document text
- https://aslimitada.com/userfiles/file/sevevoxusutufisavemumib.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=what+comes+after+calculus+bcPDF 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_off0000e76d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE76D | 17360 bytes |
SHA-256: b6d8de00727e1cecec8963d842211ebe4cb86a6184cc72de81c425027b7fa29f |
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font_01_sfnt_off000114af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114AF | 10640 bytes |
SHA-256: 19ca897ee513ddf2a7acbc8433e5a3319b871dcf7c9da2f247d4b96ced6b3dbf |
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font_02_sfnt_off00012d20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D20 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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