MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to external PDF files hosted on a variety of domains, suggesting a link farm or redirection mechanism. The presence of these external links and the overall detection as a phishing trojan indicate an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://rubenoferro.com/userfiles/file/sekisusizavibodukola.pdf In PDF document text
- http://104408017.linker.tw/files/xemono.pdfIn PDF document text
- https://ilexgold.com/app/webroot/files/userfiles/files/3594681597.pdfIn PDF document text
- http://china-guolin.com/filespath/files/20210916091401.pdfIn PDF document text
- http://xn----7sbndn5at.xn--p1ai/uploads/files/tiperogofadi.pdfIn PDF document text
- http://xy-interior.com/uploads/files/202109082248254246.pdfIn PDF document text
- http://sladkiy-ostrov.ru/userfiles/files/28977735626.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613905239ab8f---vulaparuj.pdfIn PDF document text
- https://banktapeunadana.com/tapeunadana/bank2/admin/userfiles/file/45951097352.pdfIn PDF document text
- http://springgalleryng.com/Images_upload/files/sigejujalakozikug.pdfIn PDF document text
- http://studioingtassinari.eu/userfiles/files/9777076389.pdfIn PDF document text
- http://aimecostruzioni.it/userfiles/files/punenoxagowumonuseriwoxij.pdfIn PDF document text
- https://jck.ro/userfiles/file/93948671059.pdfIn PDF document text
- http://bjoybrands.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134c7d909358---losupewexowisolavix.pdfIn PDF document text
- http://italiangreyhound.pl/img1/userfiles/file/92523842788.pdfIn PDF document text
- http://versobrokers.eu/userfiles/files/33834588746.pdfIn PDF document text
- http://be-now.pl/userfiles/file/kezofafutikuz.pdfIn PDF document text
- http://runnersavezzano.it/public/userfiles/file/6534064382.pdfIn PDF document text
- http://fueandhair.com/userfiles/files/jadewoxoginojofi.pdfIn PDF document text
- https://suprizpin.com/calisma2/files/uploads/jamixitito.pdfIn PDF document text
- http://twozonechickenlasvegas.com/uploads/files/jazuwedogowef.pdfIn PDF document text
- http://learnersdigest.org/userfiles/file/15945903794.pdfIn PDF document text
- http://wsm.hk/images/uploadfiles/file/87214924972.pdfIn PDF document text
- http://yoshitomo-kokubunji.com/jcfiles/file/xoxapigapubaditor.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=how+to+create+a+voicemail+on+androidPDF 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_off0000f29f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF29F | 10508 bytes |
SHA-256: b2745ecb7ff52735680db1ac827641548f312ab4918d0cdb8f368877b51fd1a5 |
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font_01_sfnt_off00010a79.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A79 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001228b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1228B | 17808 bytes |
SHA-256: 9f5e448a586b8c41dd88a41d7699837d6196d8e94e904fdf6a1ba8c45b541dc0 |
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