MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs that point to various domains, many of which are associated with compromised CMS uploads or disposable hosting, functioning as a link farm. The primary purpose appears to be directing users to potentially malicious content hosted on these external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://synerhu.ru/uplcv?utm_term=base+apk+snack+video PDF link annotation
- http://mylodge-naoshima.com/images/blog/file/fibejedoxuweg.pdfIn PDF document text
- http://revucue.com/ckfinder/userfiles/files/menopufoduzubitunefigeta.pdfIn PDF document text
- https://shinko-tw.com/UserFiles/file/fagexufirinu.pdfIn PDF document text
- http://lovesenergy.nl/file/46886392231.pdfIn PDF document text
- http://parateam.cz/file/54994150512.pdfIn PDF document text
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/49f063078fc585fd4e4dc6ce3966778c/34935065234.pdfIn PDF document text
- http://gdlejia.com/uploadfile/files/20210902_065111.pdfIn PDF document text
- https://aeternoplanning.com/ckfinder/userfiles/files/33864644977.pdfIn PDF document text
- https://www.hediyevideo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613035f145b59---90719849695.pdfIn PDF document text
- http://ppfi-online.com/userfiles/file/nirabexogimo.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139363469436---34151099667.pdfIn PDF document text
- http://thesecurityguardunion.ca/userfiles/files/wasamizamewefexe.pdfIn PDF document text
- http://ichieh.tw/uploads/files/202109092332231367.pdfIn PDF document text
- http://dfanchem.com/upload/files/21741026239.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614547555e41d---30519084409.pdfIn PDF document text
- http://twilaw.com/files/files/pinebetegekumit.pdfIn PDF document text
- https://www.parquesanalbertohurtado.cl/ckfinder/userfiles/files/39882387448.pdfIn PDF document text
- http://mail-business.ru/uploads/file/62666024542.pdfIn PDF document text
- https://dbhattacharjee.com/ckfinder/userfiles/files/95828941263.pdfIn PDF document text
- https://jyapa.com/jhuoyue/uploadfiles/72293672484.pdfIn PDF document text
- https://sleepthai.com/piceditor/file/sutofulazonoverirekezonij.pdfIn PDF document text
- http://ukrkarta.ua/fckeditor/userfiles/file/rojewenasegejug.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130e0698a177.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_off0000cff9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e80b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE80B | 18552 bytes |
SHA-256: bdac50c392081e5238fa535b717b1aef6dccb6511b209cd88c40889aad373abb |
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font_02_sfnt_off000118c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118C3 | 10476 bytes |
SHA-256: 9c92369610a2b82abdc008c93d04b416df2a286657b6109c3166ef3e0e4f87c4 |
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