MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier, with heuristics indicating embedded JavaScript and external URI redirection. The PDF appears to function as a link farm, directing users to numerous external PDF files hosted on potentially disposable domains, suggesting a phishing or malware distribution scheme. The embedded JavaScript is likely responsible for initiating these redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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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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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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://promoform.coreform.it/uploads/file/ditirop.pdf In PDF document text
- http://creatinglifeoptions.com/userfiles/files/46360056737.pdfIn PDF document text
- https://economiadecomunion.net/ckfinder/userfiles/files/38736599492.pdfIn PDF document text
- http://www.itidharamshala.in/images/uploads/files/7404874933.pdfIn PDF document text
- http://autoachtercamper.nl/userfiles/file/kaliwogoposuzatunifotugeb.pdfIn PDF document text
- http://aktifimmo.lu/userfiles/files/mofil.pdfIn PDF document text
- http://superfishinglewood.com/uploads/files/xosiril.pdfIn PDF document text
- http://centrlita.ru/archive/image/file/80349475176.pdfIn PDF document text
- http://artstudiodesign.it/userfiles/files/wiwolovanipaburafu.pdfIn PDF document text
- https://medicentrumnz.eu/medicentrum/files/file/76475802027.pdfIn PDF document text
- http://baharev76.ru/userfiles/file/vibutakide.pdfIn PDF document text
- http://www.binghan.my/userfiles/file/8219220802.pdfIn PDF document text
- http://zamgph.com/FCKeditor/editor/filemanager/connectors/php/uploads/file/121350357567.pdfIn PDF document text
- https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/34cd6ecb4a6f603a50901ce557e76022/62081968275.pdfIn PDF document text
- http://dpnovelty.com/upload/files/vusoxirumalugulaw.pdfIn PDF document text
- http://teamhead.net/userfiles/file/piwavi.pdfIn PDF document text
- https://www.ojchamber.com/ckfinder/userfiles/files/61828403938.pdfIn PDF document text
- https://mtydizayn.com/userfiles/file/pijunoluf.pdfIn PDF document text
- https://sweetburden.com/upload/users/files/22662607044.pdfIn PDF document text
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210906190703312750ajghy1.pdfIn PDF document text
- http://mg001.cn/upload_fck/file/2021-9-5/20210905135914308219.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161410d60926ff---patabifenuxajilog.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=apk+config+ff+emotePDF link annotation
- https://www.posluh.hr/ckfinder/userfiles/files/jubok.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_off0000e768.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE768 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ff7a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF7A | 18276 bytes |
SHA-256: 604ed6b8acc17e97bcaa633a09daf59cc1916d228d74cf50e6660302cdf38a72 |
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font_02_sfnt_off00012e72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E72 | 10420 bytes |
SHA-256: ef669bde980b2bc97de791bb7011645b219abe881c9ad5f6ed2e0247f09a187f |
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