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 malware distribution attempt. It contains numerous links pointing to potentially compromised websites and disposable hosting, characteristic of a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, suggesting an attempt to hide its true purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/b1up2qt7ldg02ssdhp27c4d8q5/40023741257.pdf In PDF document text
- https://kungfuclasshongkong.com/louis/taichi/ckfinder/userfiles/files/wakepegajakamelinumetusif.pdfIn PDF document text
- https://skatrip.com/basefile/skatripcom/files/farapufukumaduvomajevitij.pdfIn PDF document text
- http://www.bongbansaigon.com/uploads/files/liburaw.pdfIn PDF document text
- http://danangsculpture.com/uploads/image/files/papupimaliwevitagoje.pdfIn PDF document text
- http://gsxr.hu/userfiles/file/vuluxazaxewipukune.pdfIn PDF document text
- http://motopujcovnateplice.cz/userfiles/file/vuwajerobovijug.pdfIn PDF document text
- https://2-view.org/home/view/public_html/ckfinder/userfiles/files/81981667783.pdfIn PDF document text
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614d003c9e3ea---lexakezurufejipe.pdfIn PDF document text
- http://shahgrp.com/uploads/49020572589.pdfIn PDF document text
- https://alrashed-alsaleh.com/userfiles/files/fapirodub.pdfIn PDF document text
- http://knuhpharm.kr/userfiles/file/20210921155836.pdfIn PDF document text
- http://abwjefferson.com/uploads/files/66937975241.pdfIn PDF document text
- https://spbmworld.com/anaeter_capital/siteadmin/userfiles/files/mevisulim.pdfIn PDF document text
- http://uniquecharacters.com/upload/files/kokigemilema.pdfIn PDF document text
- http://7linc.com/uploadfiles/fckeditor/20210902/file/16305259252494.pdfIn PDF document text
- http://pinxedien.net/upload/files/kukisutevavakojanodigisij.pdfIn PDF document text
- http://dhf-china.com/d/files/53228213471.pdfIn PDF document text
- http://zssadkowice.pl/pliki/niwufejijalexuw.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1614413d21eaa8---68697579978.pdfIn PDF document text
- http://adec-interiors.net/Uploads/file/15821260463.pdfIn PDF document text
- http://quartierdete.fr/uploads/fckeditor/file/45736861635.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16149f99b8d720---33340704806.pdfIn PDF document text
- http://vertracapital.com/uploads/files/90630931601.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=ultimate+caller+screenPDF 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_off0000b3c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3C9 | 10276 bytes |
SHA-256: 3172c205b8d5b444f4696fbf524b4481d438ca5efbb0a3851de79f2e665003fb |
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font_01_sfnt_off0000cada.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCADA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e2ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2EC | 17312 bytes |
SHA-256: 1bf078552a568b4c846834b90783bbb2fe64b04e865822b84513bb8ce218ecab |
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