MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It contains numerous external URIs and link farm patterns, indicating a redirection mechanism. The presence of compromised CMS upload links suggests a technique to host malicious content. No scripts were extracted, but the PDF structure itself facilitates the redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
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 https://laborke.ru/uplcv?utm_term=the+new+jim+crow+they+say+i+say PDF link annotation
- https://booknowrentalimo.ch/userfiles/files/95716944767.pdfIn PDF document text
- http://sanxuatbanthinghiem.org/app/webroot/uploads/files/79689432713.pdfIn PDF document text
- https://dbjadow.pl/attachments/file/nuvezoxatevatebupoj.pdfIn PDF document text
- https://asthasupermarket.com/userfiles/file/folupavakexifimomujatono.pdfIn PDF document text
- https://maharajganjtimes.com/assets/ckfinder/core/connector/php/uploads/files/getedunuginurisem.pdfIn PDF document text
- https://plagij.at/ckfinder/userfiles/files/1761307990.pdfIn PDF document text
- http://ucity69.com/clients/861769/File/29918708091.pdfIn PDF document text
- http://hanakspotrebice.cz/eshop/ckfinder/userfiles/files/31862514357.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/73150fe997bbcd9e157a8e020e8b33a9/vedekexu.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/19eb65c9556e2ea68e5b11959bfed7fb/zosunaxoriwezefu.pdfIn PDF document text
- http://chataphan.com/file_media/file_image/file/pujubikudibujejowovorabip.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/9e411dd45d1e8f3641eb16b9509830e0/50283588899.pdfIn PDF document text
- http://keitbg.com/images/files/gufufirakazoduk.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160addac94c5c6---39122823829.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/e2pqghvh512qc8t3vdpj98f582/fewaj.pdfIn PDF document text
- http://tano-cable.com/d/files/53432018405.pdfIn PDF document text
- http://paradisoseminatrici.it/userfiles/files/28896281084.pdfIn PDF document text
- http://speaklifeiamgreatness.com/files/files/88471245389.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/14806799751.pdfIn PDF document text
- http://bkht.vn/userfiles/file/kolejaxokisunufegexogiso.pdfIn PDF document text
- https://diaochue.vn/userfiles/file/74709052500.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_off0000f4c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4C6 | 17932 bytes |
SHA-256: 78ff7859ad173ce9bdedbcbd76a91633d105d091e795de44ff2d2e6e1dd33835 |
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font_01_sfnt_off000123bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123BC | 10740 bytes |
SHA-256: 442ce52e2ad3ec3c223dba1a6fc1acfed6441c0cf2bf6da7bcc2c4c2463ac52a |
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font_02_sfnt_off00013c53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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