MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, flagging it as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate a phishing attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://serka.com/serka/upload/files/fomobisurubejazodeterik.pdf In PDF document text
- https://medgal.pl/admin/ckfinder/userfiles/files/79454067092.pdfIn PDF document text
- https://aporpeter.ro/userfiles/file/69081730183.pdfIn PDF document text
- https://renteci.com/imagens/file/solutepa.pdfIn PDF document text
- http://111-orte.com/testarea/cwsCMSlight/media/files/luvimaruz.pdfIn PDF document text
- http://quangcongluc.com/upload/files/bofoxumajoditeti.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/161396bfbdce77---78263099277.pdfIn PDF document text
- https://manenshop.com/upload/files/91484257492.pdfIn PDF document text
- https://presstone.hu/userfiles/file/fibem.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612fd825649d3---88532169424.pdfIn PDF document text
- https://mytekas.com/UserFiles/file/zepemiza.pdfIn PDF document text
- https://sunridgecorp.com/uploads/files/202109020328457263.pdfIn PDF document text
- http://stacjaregeneracja.pl/userfiles/file/78471447947.pdfIn PDF document text
- https://m-astar.com/UserFiles/files/85687483025.pdfIn PDF document text
- https://bouveau-consulting.com/userfiles/file/piwopavu.pdfIn PDF document text
- http://pereplanirovkaoblast.ru/pict/file/80301884216.pdfIn PDF document text
- http://mnarch.it/userfiles/files/likinovime.pdfIn PDF document text
- http://oembag.com/uploads/files/202109010727395900.pdfIn PDF document text
- https://anctools.com/ckfinder/userfiles/files/tonomulul.pdfIn PDF document text
- http://kitpaisal.com/mypicture/file/jajaxajazo.pdfIn PDF document text
- http://expertworker.paraleumarian.ro/app/webroot/files/userfiles/files/71937660761.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16132f354d98a1---86445776699.pdfIn PDF document text
- http://abogarestudio.com/userfiles/file/xonanoniwagil.pdfIn PDF document text
- http://oryginalnedekoracje.pl/userfiles/file/83485403477.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=cambiar+foto+de+perfil+whatsapp+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_off0000d0f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0F1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e903.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE903 | 18564 bytes |
SHA-256: 3c686ac0d698dc715d8f1df06c8bd8f9037c477f7fa82db72f41824f76140c95 |
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font_02_sfnt_off00011937.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11937 | 11020 bytes |
SHA-256: a6dd3dfab8d8b39d5fedabb07153d389cafcd300dfa929472745c6616ccf34c5 |
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