MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm on disposable hosting, with numerous embedded URLs pointing to potentially malicious content. The 'SE_CALLBACK_LURE' heuristic suggests a phishing or tech-support scam pretext, aiming to trick users into clicking links or making calls.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://allytemp.ru/uplcv?utm_term=how+to+use+video+for+live+wallpaper PDF link annotation
- http://interel-rus.ru/test/sites/default/files/file/55786723826.pdfIn PDF document text
- https://www.abrasco.org.br/ckfinder/userfiles/files/85338739241.pdfIn PDF document text
- https://www.cylinder96.ru/admin/ckfinder/userfiles/files/bipijutudad.pdfIn PDF document text
- https://mkontakt.pl/dat/file/lutisil.pdfIn PDF document text
- http://www.village-gaulois.org/gestion/ckfinder/userfiles/files/junuwinunitumijejirej.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/161333403c9f1b---wenivadewokur.pdfIn PDF document text
- https://cjsc.se/ckfinder/userfiles/files/bokivigubuzivemekebewode.pdfIn PDF document text
- http://www.cda.org.hk/ckfinder/userfiles/files/midovobigefi.pdfIn PDF document text
- http://ahchala.com/img/file/wajiguvexo.pdfIn PDF document text
- https://kawanmto.info/contents/files/wobodopominu.pdfIn PDF document text
- http://gruppocinofilomarsalese.com/userfiles/files/84043828368.pdfIn PDF document text
- http://ibconsulting.it/userfiles/files/zudisiliz.pdfIn PDF document text
- https://5703n1n6999-6a55.com/contents/files/74812233733.pdfIn PDF document text
- https://ruh-center.ru/userfiles/file/79614651200.pdfIn PDF document text
- https://produktybhp.pl/pliki_user/File/53706582499.pdfIn PDF document text
- https://honkakuji.jp/honkakuji/images/ckfinder/files/tadigifuzur.pdfIn PDF document text
- http://hk888.edo2008.com/com/comimg/file/20210913_081629_190.pdfIn PDF document text
- http://fogathajtohirek.hu/fckfiles/file/12491977773.pdfIn PDF document text
- https://hosvagyok.hu/userfiles/file/93721173049.pdfIn PDF document text
- http://sziszolg.hu/editor_up/dewadubaxulopegap.pdfIn PDF document text
- http://sloplast.com/userfiles/files/46263500153.pdfIn PDF document text
- http://associazionemillesogni.it/userfiles/files/vurofaruvuzinevotekefet.pdfIn PDF document text
- http://dalnoboy.net/data/filestorage/upload/files/fogogujajixapunatezag.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_off0000da9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA9B | 19212 bytes |
SHA-256: 4311cc25001c61b63feba0527c1b223443bfb0e4afaff5ea1607c3ab63d0ff86 |
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font_01_sfnt_off00010cab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000124c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C2 | 10628 bytes |
SHA-256: 1c0c9ba454572f4e4f6801fd3cb4992f7eb71e0100d51e9250acdd7e66941183 |
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