MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, indicating a phishing or malware distribution attempt. The 'SE_CALLBACK_LURE' heuristic suggests the document may impersonate official communications to trick users into calling a malicious number or visiting a compromised link. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or a trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://chcial.ru/uplcv?utm_term=moto+g7+security+updates PDF link annotation
- http://trungnguyenjsc.vn/uploads/image/files/zevizupovatigumalujo.pdfIn PDF document text
- https://stpatswatertown.org/ckfinder/userfiles/files/21982891632.pdfIn PDF document text
- http://dongtienlamnghiep.com/upload/file/62806898712.pdfIn PDF document text
- http://shiny-baby.com/fileimage/file/pegogazu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135226a3acfe---65153019905.pdfIn PDF document text
- http://domplus.su/userfiles/files/7014711372.pdfIn PDF document text
- http://kdsonline.org/userfiles/file/sudakirufapuzeleli.pdfIn PDF document text
- http://nemdanangpho.com/uploads/2021-09-07/images/files/81840519152.pdfIn PDF document text
- https://osiindia.org/ckfinder/userfiles/files/40315135829.pdfIn PDF document text
- http://irodaszer.lukinserv.hu/file/zekepumuj.pdfIn PDF document text
- https://dentinale.eu/wp-content/plugins/super-forms/uploads/php/files/1a87ebd36feb02240320a28017dc1fae/vejujovufolo.pdfIn PDF document text
- http://acudrved.com/ckfinder/userfiles/files/17789160504.pdfIn PDF document text
- https://kipass.fr/userfiles/file/21148567950.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161312b7088be6---40602432673.pdfIn PDF document text
- http://simsvizag.com/contentimages/file/xobotanisuwekusivobanopaj.pdfIn PDF document text
- https://elminhaj.org/userfiles/file/jirunegosu.pdfIn PDF document text
- https://costabravas.com/uploads/localidades/files/memobezu.pdfIn PDF document text
- http://www.psoealora.es/ckfinder/userfiles/files/85473131161.pdfIn PDF document text
- https://tsydesign.com/userfiles/jws/files/zitotataf.pdfIn PDF document text
- https://netlandschool.cl/files/sugofadazigojabumu.pdfIn PDF document text
- https://brukspec.pl/upload/file/4521063351.pdfIn PDF document text
- https://sedefartphotography.com/resimler/files/webazitalaxunasitagoza.pdfIn PDF document text
- http://rambud.pl/uploaded/file/2011873949.pdfIn PDF document text
- https://strongpointmarketing.net/userfiles/file/2101887647.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_off0000dec9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEC9 | 20240 bytes |
SHA-256: d2448d3619c6242b12bbc2dbe722292f84275cc46291072c1ab4d6884a5c17c3 |
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font_01_sfnt_off0001138f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1138F | 10796 bytes |
SHA-256: d71e4af57638659efe0f25ecd0b4b76f88056fa9f3e23745be76cd2ca5a7c481 |
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font_02_sfnt_off00012c7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C7C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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