MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic firings suggest it functions as a link farm and employs a callback lure, aiming to trick users into contacting a fraudulent entity. While no scripts were explicitly extracted, the presence of external URIs and the nature of the heuristics point towards a phishing or scam attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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=emerald+kaizo+rom+hack PDF link annotation
- http://www.gieskestukadoors.nl/ckfinder/files/files/73470412866.pdfIn PDF document text
- https://lotusmarinevn.com/upload/files/raxotelobonuloxufodusuzo.pdfIn PDF document text
- http://captainkillmite.com/uploads/files/202109051320087440.pdfIn PDF document text
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/4769039512.pdfIn PDF document text
- http://garantc.ru/userfiles/file/gibugerivovemexer.pdfIn PDF document text
- http://www.poliklinika-hb.cz/userfiles/file/95531751796.pdfIn PDF document text
- http://www.ih-consultant.com/ckfinder/userfiles/files/37688376467.pdfIn PDF document text
- http://ubytovna-krumlov.cz/userfiles/file/765789852.pdfIn PDF document text
- http://wonderful-foods.net/userfiles/file/15552454539.pdfIn PDF document text
- http://acetuitioncentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613d61afc83ac---tazedi.pdfIn PDF document text
- http://kiiga.ru/userfiles/file/vajawepi.pdfIn PDF document text
- http://kartywspomnien.pl/uploads/assets/file/mibulejusonepovujibok.pdfIn PDF document text
- https://autopsrus.com/ckfinder/userfiles/files/lazobazotosajeredufuko.pdfIn PDF document text
- http://angelofthewinds.net/ckfinder/userfiles/files/likuvipozexidojase.pdfIn PDF document text
- http://prodottoitalia.eu/userfiles/files/49654396745.pdfIn PDF document text
- https://mangonebike.com/uploads/file/berozejajujapituxaxanas.pdfIn PDF document text
- https://almuhja.ps/ckfinder/userfiles/files/jededazaxa.pdfIn PDF document text
- http://flemingdecal.com/uploads/assets/file/motifumevedo.pdfIn PDF document text
- http://pkpneu.cz/userfiles/file/78629210690.pdfIn PDF document text
- https://bluza-shop.ru/content/File/vulijoduzusapo.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/brpsaq9kr9qgko76s9kp7nc6bs/33153921973.pdfIn PDF document text
- http://se-ty.ru/uploads/userfiles/file/60007301066.pdfIn PDF document text
- http://zatuchlina.cz/upload/file/47702531411.pdfIn PDF document text
- https://jkmart.net/FCKFiles/File/35582269268.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_off0000fb4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB4E | 19024 bytes |
SHA-256: 321b71a1385850062f0e545f237dd8cda570fe07e700db3ea98ff3039f8a9581 |
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font_01_sfnt_off00012c75.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C75 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001448c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1448C | 10400 bytes |
SHA-256: 15a446c2d7ee88b0df02415afd0c248580b7b19e50ce2c1840f07a231696ac04 |
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