MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a malicious PDF, as indicated by ML classification and ClamAV detection. It contains numerous links to external websites, many of which appear to be hosted on compromised or disposable domains, suggesting a link farm or phishing lure. The PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites for further exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://ahrestygz.com/userfiles/files/20210901_060259.pdf In PDF document text
- http://fruhmann-elektrotechnik.at/vopelifimunikaxek.pdfIn PDF document text
- http://unite-chem.cn/upload/files/paribelitekexenozi.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613104343e029---turamela.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/40ecb9052a84c30081254fe9e07422f4/tunodosuvalesidu.pdfIn PDF document text
- http://www.neoneophytou.com/ckfinder/userfiles/files/77672903167.pdfIn PDF document text
- http://principessavencanice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137290caafc6---wudamarilagumafasujad.pdfIn PDF document text
- http://vngo-cc.vn/cooker/public/files/weros.pdfIn PDF document text
- http://cuathepvangohaiduong.com/images/ckeditor/files/mitatewumuwogotefapap.pdfIn PDF document text
- http://artdealer.vn/upload/fckimagesfile/e99687ea0b01d23283f05bcd34e4dc15.pdfIn PDF document text
- http://duda-tech.pl/dudatech/upload/file/1442946729.pdfIn PDF document text
- http://scuderieverdina.it/scuderia/userfiles/file/zixiwaxumawuvunus.pdfIn PDF document text
- http://ktai.lmg.jp/upload/file/wimifezinobufine.pdfIn PDF document text
- https://gilbertems.com/videos/file/renemadeb.pdfIn PDF document text
- https://tahuacoop.com/cms_gpadmin2015/sgi_userfiles/userfiles/files/fimarejefigaji.pdfIn PDF document text
- https://digireg.nu/upload/71148478267.pdfIn PDF document text
- http://raylutickenterprises.com/userfiles/files/69639177374.pdfIn PDF document text
- https://rosedreamholidayhomes.com/ckfinder/userfiles/files/34112649865.pdfIn PDF document text
- http://pharmorgsyn.com/upload/files/depekasames.pdfIn PDF document text
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b8da9c6c07f3b3278958c14820509926/72731547318.pdfIn PDF document text
- https://curvy.tw/upload/files/35675900205.pdfIn PDF document text
- http://barcabianca.eu/upload/file/sesevivaveg.pdfIn PDF document text
- https://leganordavigliana.com/uploads/file/fajitadaj.pdfIn PDF document text
- https://panoramabyty.cz/content/73028710236.pdfIn PDF document text
- https://callmarkinvestments.fortunekenya.com/callmark/files/4175795591.pdfIn PDF document text
- http://easytravel63.ru/ckfinder/userfiles/files/wepuxiwen.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=mha+s5+streamPDF 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_off0000cd14.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD14 | 17892 bytes |
SHA-256: db9298bc56d5fdaf254b166d25cb60ed4662224013a0d5602bd7ecc35bdea179 |
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font_01_sfnt_off0000fb7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB7B | 10136 bytes |
SHA-256: ee9b53a251fdca354f04f0f9383042e6f811b21dfa28b405124a8e3e5599e0d0 |
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font_02_sfnt_off0001123c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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