MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, presents a deceptive download button and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9888
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=malayalam+gk+questions+and+answers+pdf+download PDF link annotation
- http://bhavalaya.org/ckfinder/userfiles/files/4767864881.pdfIn PDF document text
- https://hankilfood.com/upfile/files/bifiposixutipupomeragudox.pdfIn PDF document text
- http://fskyok.com/uploadfile/files/19548234250.pdfIn PDF document text
- http://mvdeastudio.it/userfiles/files/lalezisatasuzepew.pdfIn PDF document text
- http://tetrafluoro.com/upload/files/64361895154.pdfIn PDF document text
- http://dkstores.gr/userfiles/file/45849253906.pdfIn PDF document text
- https://mimpishio2.com/contents/files/vowimova.pdfIn PDF document text
- https://simondaulte.com/ckfinder/userfiles/files/78000500812.pdfIn PDF document text
- https://sssmri.com/ckfinder/userfiles/files/41931532779.pdfIn PDF document text
- https://www.sensormaticltd.com/app/templates/js/ckfinder/userfiles/files/pefixafefa.pdfIn PDF document text
- https://vrindaindia.com/php/joseph/uploads/file/luvuw.pdfIn PDF document text
- http://melabo.com/upload/files/jilowagikotuzakuxo.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/b1e8ec9482fc249a6957e3c2b346e6a1/82750656191.pdfIn PDF document text
- http://35ct1.com/images/ckImageFiles/files/91185225262.pdfIn PDF document text
- https://unicorn.mn/js/ckfinder/userfiles/files/nusimepibiwonakigibusavo.pdfIn PDF document text
- http://retco.ge/ckfinder/userfiles/files/jumosiwivo.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/kimiwebebanogidemukodi.pdfIn PDF document text
- https://anitacalderon.com/ckfinder/userfiles/files/zukivuvodiwazadijet.pdfIn PDF document text
- http://xn--90afqerdlt1f.xn--p1ai/admin/ckfinder/userfiles/files/dapavowodome.pdfIn PDF document text
- http://aygroupmuh.com/image/files/mazibewikusenega.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4ef71adb1---30422279978.pdfIn PDF document text
- https://cicasoftavukatwebsitesi.demowebsiteleri.com/upload/files/96805790388.pdfIn PDF document text
- http://somsit.com/ckfinder/userfiles/files/5571297214.pdfIn PDF document text
- http://ivelinabozilova.com/userfiles/file/jegubanofizufekabafokam.pdfIn PDF document text
- http://szentistvanpatika.hu/upload/file/93442652287.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/zutuzofiputenusavixikezug.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_off00010952.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10952 | 18996 bytes |
SHA-256: c04bcfa85005fe4d82da0be2bea1a37150845a3b90e1c25b04627c290fa3ec70 |
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font_01_sfnt_off00013ac5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13AC5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000152dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x152DC | 11372 bytes |
SHA-256: beadb7866ffba2d0f8244853e459bc76c141badacc2ba5466252457222a75118 |
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