MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a phishing trojan and a machine learning model assigned a high probability of maliciousness. The document contains instructions to disable security software, a common tactic to bypass defenses for further payload delivery. While no scripts were directly extracted, the presence of numerous links to potentially compromised WordPress sites and other PDF files suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Security software disable instruction high SE_SECURITY_BYPASSDocument instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
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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://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a9a331e0d7---40489684127.pdf In PDF document text
- http://upoart.com/ckfinder/userfiles/files/7344446261.pdfIn PDF document text
- http://3bbb.fr/ckeditor/upload/files/77080497600.pdfIn PDF document text
- http://winecellarkeeper.com/ckfinder/userfiles/files/buvobeziladomu.pdfIn PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/50913726489.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/161335c2ce1640---58683401252.pdfIn PDF document text
- http://www.jindatunnel.com/up_files/file/18951880199.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/7605294103.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391e08ebbc6---sotib.pdfIn PDF document text
- http://cualuoiskydoor.com/webroot/img/files/safuwe.pdfIn PDF document text
- http://speckletrack.com/update/editor/file/jerajijenixedoviluruxurib.pdfIn PDF document text
- http://neoclassicalmansions.com/uplds/file/xiruvebiwomanamemiribo.pdfIn PDF document text
- http://maility.pl/_ADRESuserfiles/file/5545735895.pdfIn PDF document text
- http://www.roosprommenschenckelfoundation.nl/ckfinder/files/files/wunupoxar.pdfIn PDF document text
- http://classtool.info/upload/files/dozaviwupe.pdfIn PDF document text
- https://xn----7sbeo1acdy3adh.xn--p1ai/userfiles/file/92766680496.pdfIn PDF document text
- https://garraldaarquitectura.com/garralda_userfiles/files/gubupim.pdfIn PDF document text
- https://asthasupermarket.com/userfiles/file/fugulinuzekenagexemifef.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/35de1484dc3c93589ba082680515b3ae/82917732043.pdfIn PDF document text
- http://americansemitruckparts.com/d/files/82097750816.pdfIn PDF document text
- http://tcsklife.com/filespath/files/20210906001646.pdfIn PDF document text
- http://ecoevopublisher.com/files/upfiles/file/63984847500.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=download+game+booster+4x+proPDF 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_off0000d9c8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9C8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f1da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1DA | 19320 bytes |
SHA-256: 14441b46aba7d8f4283254c260981bb958841ba1a72c2614033a18149385d430 |
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font_02_sfnt_off00012526.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12526 | 11048 bytes |
SHA-256: 44b234067720e16fb4d0ad5fd8bb7abfe76a91e784f97ae7567084d737459262 |
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