MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by ML classifiers and ClamAV as malicious, exhibiting characteristics of a social engineering attack (ClickFix). The document body, though heavily obfuscated, combined with heuristic findings of external URIs and link farms, suggests an attempt to lure the user into visiting malicious sites or executing commands. The presence of embedded URLs and the nature of the heuristics indicate a likely phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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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ClickFix social engineering attack high SE_CLICKFIXDocument instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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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://synerhu.ru/uplcv?utm_term=hide+play+store+icon PDF link annotation
- http://phongkhamthienhoa.vn/images/files/gutesufirotetapufapi.pdfIn PDF document text
- https://franchiseharbor.com/files/files/gajosaloxibunilado.pdfIn PDF document text
- http://xlith.com/userfiles/files/79782775397.pdfIn PDF document text
- http://machinesupplier.cn/data/product/file/202193_33133_289.pdfIn PDF document text
- https://thaiahpa.com/flash/files/nunakopopibelivafilaxex.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/a3000a7ba5fe4c5fc785c85b5c26e59a/noxitopofifemozetefiziluv.pdfIn PDF document text
- http://sjar-tech.com/uploadfile/file///2021090919042355.pdfIn PDF document text
- https://vanrun-it.nl/userfiles/files/12385361444.pdfIn PDF document text
- http://ultrabeauty-ff.ru/userfiles/file/jirasezanevilavaxurobe.pdfIn PDF document text
- https://kligi.viart.lt/ckfinder/userfiles/files/76118565988.pdfIn PDF document text
- http://th-hl.com///upload/files/61983150482.pdfIn PDF document text
- https://lapakunited.com/contents/files/1252196262.pdfIn PDF document text
- https://edinburghpools.com/contents/files/39104064390.pdfIn PDF document text
- https://mimpishiodua.com/contents/files/34369509227.pdfIn PDF document text
- http://steakpluspizza.us/userfiles/file/kegukatumulotakawokimobeg.pdfIn PDF document text
- https://eniedu.com/data/file/20210917135216.pdfIn PDF document text
- http://drironcat.com/images/file/37235393877.pdfIn PDF document text
- http://www.findvoters.com/userfiles/file/60617664774.pdfIn PDF document text
- http://offerparts.com/upload/files/96578455496.pdfIn PDF document text
- https://pacie.vn/web/uploads/files/15451548760.pdfIn PDF document text
- http://gtlmarinefuel.com/userfiles/file/jafunebexikoletomegu.pdfIn PDF document text
- http://texinpack.com/uploadfile/file///2021090920115964.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161318eae904e1---8405279077.pdfIn PDF document text
- http://santehnika34.ru/images/file/4459482395.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_off0000dbc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBC8 | 17488 bytes |
SHA-256: 5c6cbe2841530b1776c1b4725d6805b683b83dd350c0e0daa6b5211c95b79da5 |
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font_01_sfnt_off00010975.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10975 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001218c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1218C | 10612 bytes |
SHA-256: 08c7b0791526de445d5222b603aae83f0a78ccf5585933fbcbc884b69f463738 |
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