MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as a phishing trojan. It contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS uploads, suggesting a link farm designed to redirect users to malicious content. The presence of these links and the detection as a phishing trojan indicate a likely spearphishing attachment attack pattern.
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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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://tipsclubcr.com/campannas/file/tuwuzazewalalujulufu.pdf In PDF document text
- http://twsl.mingann.info/upload/ckfinder_temp/files/20210905183300.pdfIn PDF document text
- http://parlagame.net/calisma2/files/uploads/gimosoxudije.pdfIn PDF document text
- http://zbirozskepodzamci.cz/userfiles/44545940303.pdfIn PDF document text
- http://edukoc.net/userData/ebizro_board/file/26809567154.pdfIn PDF document text
- http://jowinbio.com/upload/files/202109051100192916.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/81807826157.pdfIn PDF document text
- http://robertwestlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/fodojupetelilusurave.pdfIn PDF document text
- https://natatourism.com/userfiles/files/79324864785.pdfIn PDF document text
- http://chelseafoodmart.com/uploads/files/sufubisisuzilodiki.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-1/20210901125858436020.pdfIn PDF document text
- http://bjjiffy.com/upload/zewukem.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16135c8434d21c---fibakixaxebesanalag.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613760851b5f3---21341124428.pdfIn PDF document text
- https://satellietgroep.nl/userfiles/files/34932639156.pdfIn PDF document text
- http://nensi.si/upload/file/vudumubofonikebitej.pdfIn PDF document text
- http://www.heksan.com.pl/file/pojikilesitifoso.pdfIn PDF document text
- http://baovephuongtroi.com/vietkiendo/upload/file/39923664301.pdfIn PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/d004b11838e6e2254163c3626a0d7fc1/zakojedi.pdfIn PDF document text
- http://planetamama.ru/files/file/jajaxutite.pdfIn PDF document text
- http://msslink.ru/userfiles/files/93175896215.pdfIn PDF document text
- http://biosite.ru/images/news/file/jofinujifabuvedoratimed.pdfIn PDF document text
- http://sushibelovo.ru/files/vokazukunedogix.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=skam+espa%C3%B1a+watch+online+english+subtitlesPDF 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_off0000d67b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD67B | 20172 bytes |
SHA-256: e5e68f2efa3688b44f0b2cce728f2e57e770b8fb4cf7ca9eae29cc971a10bf79 |
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font_01_sfnt_off00010ae6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10AE6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000122fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122FD | 11420 bytes |
SHA-256: d1229477b209ebe232bee1d26c272fdbc8f05e55964b7ab38a8110ecd0061f34 |
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