MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged as malicious by ClamAV and an ML classifier. It uses an urgency-based lure. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
Heuristics 8
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://hzjksj.com/images/upload/File/memipededijezanidu.pdf In PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/55205c105463179c8d81be3cfc49dfe7/41919147557.pdfIn PDF document text
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/160725a855cede---matajaderelaxunevosux.pdfIn PDF document text
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/0ae349ee1860501e9f382728658a1c9d/misajugodixi.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160844633f0ddf---nasuterilujixemifa.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/tazupesozojukomirawafo.pdfIn PDF document text
- http://dishandspoonproductions.com/ckfinder/userfiles/files/81958868898.pdfIn PDF document text
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/6d4054aea7d5162580eac5204ba4de30/tulomot.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609743f6c89e3---vomoru.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/160912b068abfc---76340416595.pdfIn PDF document text
- http://vtracauto.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbc7e48247f---goxotafefu.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e689eeab1c---rejalamajekezo.pdfIn PDF document text
- http://thuephotocopytaihanoi.com/upload/files/83982953972.pdfIn PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/3d01d7629bca15b6fedff25f99c30e2d/7318855040.pdfIn PDF document text
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609afe3e3078b---dexamexe.pdfIn PDF document text
- http://blesk-stroy.ru/userfiles/files/xaruder.pdfIn PDF document text
- https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/g5then1159r3dd551iii9286bs/rijekumafoje.pdfIn PDF document text
- http://primaria-ciocirlia.ro/media/file/lufatepo.pdfIn PDF document text
- https://opuntia.eu/wp-content/plugins/super-forms/uploads/php/files/ad88e3bafbe0e05c9ccac55da7f9f6b0/14175455154.pdfIn PDF document text
- https://accu-split.com/userfiles/files/87640605755.pdfIn PDF document text
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acf8cc79a16---ripewobimexudamola.pdfIn PDF document text
- https://pousadamarazul.tur.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608e1817c9b5d---zolagobet.pdfIn PDF document text
- http://leebyunghun.kr/new/upload/board/files/suroruxoxurekif.pdfIn PDF document text
- http://freemansphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7504dc824---mitopamiwuxisob.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608f0b291f771---viludereluwojawi.pdfIn PDF document text
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9481b9fec9---78323854334.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a721d620137---29246870884.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=can+i+see+messages+i+deleted+on+instagramPDF 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_off0000e835.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE835 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001004c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1004C | 10620 bytes |
SHA-256: 78d9020c5e1bf19d6501f8180725249c4c19868e98655035cd9e0ff6f0d6afe4 |
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font_02_sfnt_off00011853.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11853 | 17416 bytes |
SHA-256: b3f56b9c4598fe304fe297484f9ae77fa46a0c3b211ece3fd3e4e41aebb84665 |
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