MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and a link farm structure indicates an attempt to lead users away from the document to a potentially harmful destination.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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 https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/9555758099.pdf In PDF document text
- https://conviviodihera.it/dati/upload/file/58839371045.pdfIn PDF document text
- http://win-sonic.com/kida2018/ck_imgs/files/58165239054.pdfIn PDF document text
- https://pointvirgule.ca/upload/editor/file/24918327170.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/zixodatuzeniluxedop.pdfIn PDF document text
- http://com123.vn/uploads/file/fixigetajetaropewubak.pdfIn PDF document text
- http://dbcasagayathottam.org/assets/uploads/cms_images/files/57286676134.pdfIn PDF document text
- https://testgit.begurholidays.com/uploads/userfiles/files/vafisuxakebamafulujexe.pdfIn PDF document text
- https://notofthisgalaxy.com/wp-content/plugins/super-forms/uploads/php/files/9r8dn7i8cl2iabsusokq9je4gr/23274622072.pdfIn PDF document text
- http://iberryhomemade.com/userfiles/files/migowilolologapop.pdfIn PDF document text
- https://www.hit-education.com/wp-content/plugins/super-forms/uploads/php/files/6g3uujk582321tn32jlnqlail2/36615954762.pdfIn PDF document text
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/lr0o6dedp19es9brl9p9i3moa1/taxinixokeze.pdfIn PDF document text
- http://fhs76reunion.com/clients/0/00/009202203981f132fd14d012a57c0fe5/File/wimazakokutuzeropora.pdfIn PDF document text
- https://kawanmto.com/contents//files/37668460397.pdfIn PDF document text
- https://bettyloupaints.com/userfiles/files/sadogon.pdfIn PDF document text
- http://promocode.lu/userfiles/files/tolidakefunajivawujejikat.pdfIn PDF document text
- http://laboratoriodiprogettazione-ve.it/userfiles/files/kufunuwebuvoka.pdfIn PDF document text
- http://posekatzahradu.cz/files/file/noreguruxaxojojaxotame.pdfIn PDF document text
- https://triyoga-tv.ru/userfiles/file/71404774846.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/fcb754f447279d8fabb6a836e169d5f2/puxafifikupupojam.pdfIn PDF document text
- http://garderoba.sk/images/_file/makokuvowot.pdfIn PDF document text
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/ad17805f2495180fde7f413516d35ccb/81577381599.pdfIn PDF document text
- http://allaboutdowney.com/userimages/kikovivifedarovabuben.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5785bc0cd---watosesixenovunef.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=nausea+and+stomach+pain+for+a+weekPDF 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_off0000d8d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8D6 | 11096 bytes |
SHA-256: d159e3e7385148e7154132529eae85e970cc7282066861c183af86f0c476a02c |
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font_01_sfnt_off0000f291.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF291 | 17720 bytes |
SHA-256: baa5ae5a83236a1f2abec33d69e4f8f75a689c59d37d82256bf12f6707afcdc9 |
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font_02_sfnt_off000120b7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120B7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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