MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm, with several URLs pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or SEO-based attack. The presence of numerous embedded URLs, many of which are unknown or point to potentially compromised sites, reinforces this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://wittymall.com/multimedia/userfiles/file/zemirij.pdf In PDF document text
- https://fetogram.com/images/upload/files/towajodupe.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613848ae6cad0---tolajivodura.pdfIn PDF document text
- https://endeligmandag.no/e-brev/data/div/56893764948.pdfIn PDF document text
- http://bright-mineral.com/uploadfile/file/2021090319333175.pdfIn PDF document text
- https://almondzwealth.com/administrator/imagetemp/file/nisedekimowavutewiselofuk.pdfIn PDF document text
- https://rubenferro.com/userfiles/file/kijijufemid.pdfIn PDF document text
- http://emachn.com/data/attachment/file/28745366527.pdfIn PDF document text
- https://desense.eu/uploads/wysiwyg/files/78119128596.pdfIn PDF document text
- https://windscrm.net/files/file/kifezaj.pdfIn PDF document text
- http://pcccphucvinh.com/upload/files/sabug.pdfIn PDF document text
- http://holmeslawfirm-iowa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/dojuroxul.pdfIn PDF document text
- https://cs168.tw/upfiles/editor/files/kovesesuwofod.pdfIn PDF document text
- http://constantemail.com/userfiles/file/163080773355999160579.pdfIn PDF document text
- https://aakritidigitals.com/userfiles/files/puromojamidudobige.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/onjir0jtvu2ob85mft4ru1v4ko/jireboputefikupu.pdfIn PDF document text
- http://divapharma.com/uploaded/file/65012092212.pdfIn PDF document text
- https://florerialafloresta.com/ckfinder/userfiles/files/44721428934.pdfIn PDF document text
- http://mariautonoleggiomarsala.it/userfiles/files/73126152494.pdfIn PDF document text
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613841505211c---lulipovarali.pdfIn PDF document text
- http://baracenter.be/userfiles/file/28391469841.pdfIn PDF document text
- http://viprealestatebrokers.com/userfiles/files/bifemeja.pdfIn PDF document text
- http://artc-polymers.com/upload/images/files/xujukafufewolipatozovogu.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=evitar+que+se+apague+la+pantalla+androidPDF 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_off0000c276.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC276 | 10864 bytes |
SHA-256: bed8909d8c2c1b87c91bbdb0bbca05bfff17b945dcccc149f025074666d64112 |
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font_01_sfnt_off0000db1a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB1A | 18588 bytes |
SHA-256: 3b1923d05b3615722663742e9f5f1ebbc6e060232829ce1ce77ac8d71069c801 |
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font_02_sfnt_off00010add.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ADD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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