MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious, specifically identified as phishing or a trojan. It contains numerous embedded URLs, many of which point to disposable hosting and appear to be part of a link farm. The 'SE_CALLBACK_LURE' heuristic suggests the document may be designed to trick users into calling a fraudulent number, consistent with callback phishing or tech-support scams. While no scripts were explicitly extracted, the PDF structure and embedded URIs indicate an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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://catamma.ru/uplcv?utm_term=how+to+see+followers+of+private+account+on+instagram+without+following PDF link annotation
- http://emusicmarket.com/upfile/board/files/wojanaxusesidof.pdfIn PDF document text
- http://helenhotel.vn/upload/files/zimonomutiw.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/16136c75e5899d---43542468720.pdfIn PDF document text
- http://www.taxivanclass.com/uploads/ckfinder/files/85302077779.pdfIn PDF document text
- https://kanat.com/upload/ckfinder/files/weken.pdfIn PDF document text
- https://marsanz.pl/uploads/fck/file/gixizenobedev.pdfIn PDF document text
- http://chinalabware.es/d/files/sunosedomitanuzodu.pdfIn PDF document text
- http://hbaoge.com/upload/files/61238460040.pdfIn PDF document text
- https://inijariku.com/ckfinder/userfiles/files/44964104826.pdfIn PDF document text
- http://twtipa.com/upfile/files/2021/09/17/90337318363.pdfIn PDF document text
- http://oris-am.com/editor_up/13610138487.pdfIn PDF document text
- https://coherence.cz/userfiles/file/mezaferegizapotifufajer.pdfIn PDF document text
- http://gekon.net/userfiles/file/79668738205.pdfIn PDF document text
- https://croatia-flyfishing.com/files/kemokewurutobeku.pdfIn PDF document text
- http://merklink.nl/site/data/ws/files/fodawuzekuwasaf.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/81607921045.pdfIn PDF document text
- https://trungtamgiasuhcmmq.com/uplaod/quangtri/files/somivejebademulisame.pdfIn PDF document text
- http://studiovalentini.eu/userfiles/files/72844615057.pdfIn PDF document text
- https://igescanada.com/ckfinder/userfiles/files/raxufegonozagiv.pdfIn PDF document text
- http://fc-junajted.com/upload/datoteke/88221865300.pdfIn PDF document text
- http://bulmarconsult.com/files/xozedinujisuma.pdfIn PDF document text
- http://carbonelite.ru/file/85946969045.pdfIn PDF document text
- https://oolong-dining-co.com/webroot/editor-uploads/files/8444678692.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/8067561881.pdfIn PDF document text
- https://booburger.myagenda.cz/pictures/editor/files/zudokosiwudodabapuvu.pdfIn PDF document text
- http://mycoapaisyl.com/webimages/files/36887173118.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_off0000d7e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E2 | 18272 bytes |
SHA-256: 8e4bea203e46600c38da330fa19710a563919677729581458f5b55546c696954 |
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font_01_sfnt_off000106f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106F1 | 11168 bytes |
SHA-256: 6969b3fdef4966dd9adbeb6c36ec535db170e7d0a2c6cb52c0609df8acb8cd82 |
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font_02_sfnt_off000120ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120EE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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