MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL analysis strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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://dichvumayphoto.vn/webroot/img/files/mepunumuxarunibaxuxekor.pdf In PDF document text
- http://ferrocom-spb.ru/userfiles/files/dulinabesemolilutodapu.pdfIn PDF document text
- http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae65bacd22f---95608666873.pdfIn PDF document text
- http://thedewakohchang.com/image/upload/File/164448274.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16073d8cf2c868---34701849325.pdfIn PDF document text
- https://farmstead.tw/farmstead/upload/files/94875183021.pdfIn PDF document text
- http://amctop.com/board_data/editor_img/file/202105220302.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1606fb4e54fbc0---34708787447.pdfIn PDF document text
- http://alpha-cp.com/userfiles/file/30127763785.pdfIn PDF document text
- http://architettogherardi.eu/userfiles/files/50255770900.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089ae33e4b98---jaluduvasijewubulixojar.pdfIn PDF document text
- http://cecev.com/stockages/files/mafisipi.pdfIn PDF document text
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608d4a7676286---12592533724.pdfIn PDF document text
- http://fogathajtohirek.hu/fckfiles/file/83170621454.pdfIn PDF document text
- https://creteotels.gr/FCKeditor/userimages/file/vexuk.pdfIn PDF document text
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/72f286d5c898faba7da834f323f56efa/30045510475.pdfIn PDF document text
- https://gsm.company/ckfinder/userfiles/files/nanuvijomudu.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/rb25c9jjbvo9a11ujf2qiulfj6/kekamogijosadularerigivuk.pdfIn PDF document text
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/c09eb9e7d919d7c72dfeaff027d770c7/21431431767.pdfIn PDF document text
- https://abugfreemind.com/userfiles/file/kuliseluwisowi.pdfIn PDF document text
- http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e534b758fc773f12cc9f786902b8df53/25110546074.pdfIn PDF document text
- http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097a1602530e---6030043757.pdfIn PDF document text
- http://www.hz-kontejnery.cz/ckfinder/userfiles/files/katidifava.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=when+did+the+second+agricultural+revolution+endPDF 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_off00017db8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17DB8 | 10808 bytes |
SHA-256: 457bd99f6f9bb87283805427cdb4f5a738343d724269c3803a48ce495414fe7c |
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font_01_sfnt_off0001966b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1966B | 18376 bytes |
SHA-256: 8035286d349283199566475a97fa6d49eb9ecd8f1334e45523ec932ef06414a3 |
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font_02_sfnt_off0001c778.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1C778 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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