MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites and other domains, suggesting it functions as a link farm to distribute malicious content or phish users. The presence of multiple external URIs and link farms indicates a deliberate effort to redirect users to potentially harmful destinations.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://laborke.ru/uplcv?utm_term=how+to+recover+deleted+wechat+messages+on+android+without+backup PDF link annotation
- http://mkngsp.ru/upload/files/39824640617.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/01e938571871214e66ca3efefda5596e/94498037401.pdfIn PDF document text
- https://nullemont.fr/nullemont/ckfinder/userfiles/files/20794321983.pdfIn PDF document text
- http://tasteofruraleurope.eu/upload/File/65063342256.pdfIn PDF document text
- http://pebyte.com/wp-content/plugins/super-forms/uploads/php/files/9d9q0jnhm0ih5jdq4d7mb5q3tj/70057435094.pdfIn PDF document text
- https://officialbacknumber.org/editor_up/44794016650.pdfIn PDF document text
- https://olgunbey.com/upload/ckfinder/files/91261131791.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/67040847321.pdfIn PDF document text
- http://stagegator.scorchmark.com/stagegator/ckfinder/userfiles/files/bofimivul.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/32304630848.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/261a1e57276b90a263c2e5c74d0bacd9/vuxaripikifat.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fcc8a15e44---risuzibanesolunolumi.pdfIn PDF document text
- http://geo-equipe.it/userfiles/files/nugute.pdfIn PDF document text
- http://argyleliquidations.com/userfiles/files/lawajapojitanure.pdfIn PDF document text
- https://baobiachau.com/luutru/files/91591058339.pdfIn PDF document text
- http://prplus4u.com/ckupload/files/70560364342.pdfIn PDF document text
- http://ericshartman.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/bekinopuv.pdfIn PDF document text
- http://xn--b1adbbbaeqjtsflbfms0e.xn--p1ai/pict/file/wotejepakatugosox.pdfIn PDF document text
- http://foto-recepty.sk/images/fotky/tokefinekelugobi.pdfIn PDF document text
- https://xn----7sbbg1ddpkdc.xn--j1amh/uploads/files/bumaluzuw.pdfIn PDF document text
- https://www.shropshirefurniture.co.uk/admin/ckfinder/userfiles/files/jopinipumewekorijugej.pdfIn PDF document text
- https://charterboatdeliverance.com/uploads/files/volosegizofimipipumupobu.pdfIn PDF document text
- https://at-studio.tw/app/webroot/userfiles/files/20210915_204611.pdfIn PDF document text
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613d267237be0---88776484770.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_off0000d6f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F6 | 17000 bytes |
SHA-256: c8839aba6c416db42f5fd80e8333ed87c7c8176268fa2484b1fe996bd2f1e3c6 |
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font_01_sfnt_off0001032e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1032E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011b45.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B45 | 11436 bytes |
SHA-256: 76d6496fff6ae3502181903c5b6160f316cb8b9e93dda239395744e82979bf90 |
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