MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a link farm and a callback phishing lure. The document body is heavily obfuscated, but the presence of numerous external URIs and the 'SE_CALLBACK_LURE' heuristic strongly suggest a phishing attempt designed to trick the user into making a fraudulent call. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9885
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 http://protezas.lt/i/File/84258955294.pdf In PDF document text
- http://spec-so.ru/sites/default/files/file/ratopunorozatezojubi.pdfIn PDF document text
- https://sandipkumardutta.com/ckfinder/userfiles/files/jirexigamaguduxixivef.pdfIn PDF document text
- http://union-montage.pl/userfiles/file/werofutamufiwisovala.pdfIn PDF document text
- http://celyroknaterase.sk/editor_uploads/system/files/27079012559.pdfIn PDF document text
- http://dkkarsin.pl/img/upload/files/sotupemes.pdfIn PDF document text
- http://sloplast.com/userfiles/files/12305867396.pdfIn PDF document text
- https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151267c318b8---18367228188.pdfIn PDF document text
- http://tungalag.mn/userfiles/files/bimonosazidigexujan.pdfIn PDF document text
- https://sergeca.com.ve/ckfinder/userfiles/files/vezupa.pdfIn PDF document text
- https://iskoruma.com/upload/ckfinder/files/16327481687.pdfIn PDF document text
- http://nokianhakkablue.ru/ckfinder/userfiles/files/womapowubonajaropumij.pdfIn PDF document text
- http://tiszaikaland.hu/upload/file/69499302595.pdfIn PDF document text
- http://residencelesaline.it/userfiles/files/12320852845.pdfIn PDF document text
- http://haiqi-machine.com/d/files/96199602795.pdfIn PDF document text
- http://lotusburbank.com/uploads/files/78671105430.pdfIn PDF document text
- http://iaestedresden.de/userfiles/file/93736890773.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16153a41ed9cd1---lasotofobekojalusugibaz.pdfIn PDF document text
- http://drsuthichai.com/userfiles/files/96661843279.pdfIn PDF document text
- https://nocnepal.org.np/ckfinder/userfiles/files/87291181082.pdfIn PDF document text
- https://www.sexualaufklaerung-schule.ch/ck/ckfinder/userfiles/files/rurosuwesawipuvo.pdfIn PDF document text
- https://www.canoe.ro/Extras/ckfinder/userfiles/files/71376559056.pdfIn PDF document text
- http://malovanesklomh.cz/images/file/mekaluvuk.pdfIn PDF document text
- http://fundacionecla.org/resources/original/file/zuwunibakiwonok.pdfIn PDF document text
- https://digireg.si/upload/24530280842.pdfIn PDF document text
- http://ranchobg.com/img/file/49820400803.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/zezudaposefeb.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=java+if+condition+examplePDF 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_off0000b6b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB6B3 | 15764 bytes |
SHA-256: 40aa0ca689d58e07d844f9f99a7193ec30dfffd5ce2fe366518403c578688621 |
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font_01_sfnt_off0000df50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF50 | 10672 bytes |
SHA-256: d56dc93aced290df3c25617e68422aac45773f46d156a00dd4a189c38bf6a9f5 |
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font_02_sfnt_off0000f7cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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