MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple external URIs and the 'SE_INVOICE_LURE' heuristic suggest a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a common pattern of luring users to malicious sites, likely for further exploitation or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9886
Heuristics 7
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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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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://originalbau.hu/imagesfiles/luropuro.pdf In PDF document text
- https://dursunguney.com/userfiles/files/13990948955.pdfIn PDF document text
- https://xtrafitcoaching.com/www/images/files/federetemakabe.pdfIn PDF document text
- http://xn--5dbfbdrd7azav1bcx.com/sites/default/files/file/13950710971.pdfIn PDF document text
- http://magic-mugs-factory.com/uploadfile/files/47248934515.pdfIn PDF document text
- http://okfilm.kr/userData/board/file/8482312771.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16140b3a76cbfd---53756232596.pdfIn PDF document text
- http://mfahk.com/upload/files/fipiwaxiwurubetif.pdfIn PDF document text
- http://klemanpince.hu/files/file/xakapu.pdfIn PDF document text
- http://optometrystaprzemysl.pl/userfiles/file/fiwosunivarufan.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/55091843588.pdfIn PDF document text
- http://fueandhair.com/userfiles/files/71888770079.pdfIn PDF document text
- http://autoscuolapezzano.it/userfiles/files/wefotabokofosu.pdfIn PDF document text
- https://podereilmontaleo.it/writable/public/userfiles/file/najuzoxasonumufowutasari.pdfIn PDF document text
- https://viveironativodevicosa.com.br/ckfinder/userfiles/files/noxikig.pdfIn PDF document text
- https://inprovitargentina.com/ckfinder/userfiles/files/49621089751.pdfIn PDF document text
- https://tahsindincer.com/upload/ckfinder/files/81030472321.pdfIn PDF document text
- http://huarong-bio.com/upload/files/2015155342.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1614e07158735a---45096274073.pdfIn PDF document text
- http://asremajazi.com/uploads/files/pupiterupumu.pdfIn PDF document text
- https://thietbivesinhanhhuy.com/asset/files/wudivijozifufaw.pdfIn PDF document text
- http://erictex.com/ufiles/files/vovosilefumixanefalufu.pdfIn PDF document text
- https://bagstyle.uz/images/file/49272056253.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=thank+you+for+your+message+synonymPDF 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010054.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10054 | 17192 bytes |
SHA-256: 736bad5b1f990d62aed4ecf6620ce51020afb900679dca4ee8c145c7c85029fb |
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font_01_sfnt_off00011977.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11977 | 19064 bytes |
SHA-256: 2c47708b662498004968592c792017fa9b72441b614a54d4a4b9771e826ae693 |
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font_02_sfnt_off00014ad6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AD6 | 10696 bytes |
SHA-256: 3f0c9758693a57bce7bfc7d4340c36acf9385059e356b325f179803e6a71bfa8 |
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font_03_sfnt_off00016340.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16340 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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