MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to direct users to potentially malicious content. ClamAV and ML classifiers also flagged this PDF as malicious, specifically as a phishing or trojan variant. The presence of these links and the detection results strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://serbanindustrialconstruct.ro/uploads/files/96861853242.pdf In PDF document text
- https://primer-spb.ru/files/files/15983928633.pdfIn PDF document text
- http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081708646cc8---muxutuxevapugusosibutopev.pdfIn PDF document text
- http://chicagohalo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a529b5883e---43309342021.pdfIn PDF document text
- http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8f5c81b77---70542628278.pdfIn PDF document text
- https://mamotato.ro/userfiles/file/66720002105.pdfIn PDF document text
- http://studioindelicato.com/userfiles/files/4265202563.pdfIn PDF document text
- http://koreanhotpot.com/uploads/files/62047104174.pdfIn PDF document text
- http://leap-egypt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a7fb909a78---78863830265.pdfIn PDF document text
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/gmpp4u6un5esdva8319vnhr6p1/paxatuliraraxevivuka.pdfIn PDF document text
- http://technoculture.cz/admin/upload/file/38524877064.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/23254467706.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608801455f794---45451600638.pdfIn PDF document text
- https://hondamienbac.vn/userfiles/file/rasasi.pdfIn PDF document text
- http://446888.top/userfiles/file/tizab.pdfIn PDF document text
- https://gifarlcm.com/upfiles/editor/files/tugavesibutojur.pdfIn PDF document text
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/ftbn3p61k30m6uou77pcnift6u/55215687573.pdfIn PDF document text
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1310a82e5---mopexer.pdfIn PDF document text
- http://thietbiotoviet.com/Images_upload/files/92214929627.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cc54299bdb---90944362460.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/nenowufoj.pdfIn PDF document text
- http://ztkammer.at/uploads/file/24004771558.pdfIn PDF document text
- http://studioguatta.it/userfiles/files/nedug.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=isotope+practice+worksheet+learning+targetPDF 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_off0000e2c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE2C3 | 10784 bytes |
SHA-256: 13e473e236ac1a6674cdf145755af9f29c9481bc0cb78fefb95b06ee20b7d0f3 |
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font_01_sfnt_off0000fba6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFBA6 | 17832 bytes |
SHA-256: 9229ecfa30e9740305e73346ff7f93273a9609f3c115025c9e0f0189d493238b |
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font_02_sfnt_off00012a03.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A03 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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