MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to compromised websites, suggesting a link farm or redirection mechanism to deliver further payloads. The presence of PDF-specific heuristics like 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' and 'PDF_SEO_DISPOSABLE_LINK_FARM' reinforces the nature of the attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c4cab98e5---galitojonenarunizubitar.pdf In PDF document text
- https://xn--interpeas-r6a.es/upload/files/32058873495.pdfIn PDF document text
- http://interwork.sk/userfiles/file/xawikibak.pdfIn PDF document text
- http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16087fd5f53cac---nipute.pdfIn PDF document text
- http://wsp.pl/userfiles/file/19010991451.pdfIn PDF document text
- http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a527a0ae12---89841481713.pdfIn PDF document text
- https://beldapromosyon.com/calisma2/files/uploads/89518261188.pdfIn PDF document text
- https://www.jahnigterbraak.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160dce9a228226---33558267048.pdfIn PDF document text
- http://innotack.com/userfiles/files/53815564304.pdfIn PDF document text
- https://www.perfumista.co.uk/wp-content/plugins/super-forms/uploads/php/files/8ac4e0a558f7f8e679fe4e8059e4970e/64722090879.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/7eb76811e18acd8e153c7eb764368c7d/50656316093.pdfIn PDF document text
- http://faradbox.pl/files/file/76196239056.pdfIn PDF document text
- http://bukvoznaika.ru/ckfinder/userfiles/files/lufixodekajelironube.pdfIn PDF document text
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/38ad52393bfa9e96576a7439fb1d16db/jusofi.pdfIn PDF document text
- https://mmszke.hu/files/file/sapenajafetoposek.pdfIn PDF document text
- https://wickedcheesy.com/images/file/39568210519.pdfIn PDF document text
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608038ca56b23---kusagelexuto.pdfIn PDF document text
- https://datajournonepal.org/files/biliberunun.pdfIn PDF document text
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/7610445818.pdfIn PDF document text
- http://xn--90aoj0agf7cq.xn--p1ai/uploads/files/vimoziwavuvoxunem.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=chain+cast+on+loomPDF 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_off0000b163.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB163 | 10292 bytes |
SHA-256: fbfb75b84627cea625ddc113ebe390e7a9e3ea7acda52b5329b6a6e636939715 |
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font_01_sfnt_off0000c85f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC85F | 15520 bytes |
SHA-256: d8767bad8187037be18c3137ed8e5b68a18e468e49dc85e16a147f2b423f427e |
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font_02_sfnt_off0000f047.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF047 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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