MALICIOUS
164
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. 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 0.9942
Heuristics 7
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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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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 https://eviinstall.com/userfiles/files/xumivivebijudat.pdf In PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160d83bc60111b---pibetupafakuvusaru.pdfIn PDF document text
- http://weddingdiy.cc/uploadfiles/files/20210701_061715_5992.pdfIn PDF document text
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607de2e1352fb---89428126376.pdfIn PDF document text
- https://www.aironface.com/wp-content/plugins/super-forms/uploads/php/files/48805f993a1ebbef99d47c65a9277b97/25838847589.pdfIn PDF document text
- http://rahway1968.com/clients/5/53/53e48f2724afc57738bbbcfbfdbdad27/File/63816878035.pdfIn PDF document text
- http://phelieuviethung.vn/upload/files/jebexe.pdfIn PDF document text
- https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b8986b3c944---78721723818.pdfIn PDF document text
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160ac01bab1349---93063655224.pdfIn PDF document text
- http://vendingchat.ru/uploads/ckfinder/files/sajeven.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1609d36a19c1ba---vuvuzojupigagejasemiwe.pdfIn PDF document text
- https://www.electriclighting.com/wp-content/plugins/super-forms/uploads/php/files/a7cb6fb0bba7994dfb094700fc076411/80679589376.pdfIn PDF document text
- https://tese.in/ckfinder/userfiles/files/jagibotuserafanijurafivum.pdfIn PDF document text
- https://aimhc.com/userfiles/file/vizojepo.pdfIn PDF document text
- https://elitstroycraft.ru/source/file/47092885260.pdfIn PDF document text
- http://agenziaimmobiliarecannavo.eu/userfiles/files/70367292829.pdfIn PDF document text
- https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c6dc4cee61---vanuvemotalabos.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce0d5f0afbd---30096029001.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/b1a7b2c46e45ac9468158bdc727288bc/96247653043.pdfIn PDF document text
- http://pvsystexperts.com/wp-content/plugins/super-forms/uploads/php/files/bpso1a5g51pghamj97h1kvrun4/defamenole.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/bm10enmvvgo18nhht7tgjuo2iv/84475500358.pdfIn PDF document text
- https://tortugafilms.ca/adminfiles/file/47564547469.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d5e9eac2f---dufuzuvuvatod.pdfIn PDF document text
- http://ehs1958.org/clients/73155/File/80389287681.pdfIn PDF document text
- https://kudamatsu.org/userfiles/file/bidekotujonabujinu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=gta+san+andreas+ultimate+download+linkPDF 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_off0000f10f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF10F | 10724 bytes |
SHA-256: 3914b27aad37ca52015aaaa97198f0c10eacf9ac495029bd20b4caa62a9cdb31 |
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font_01_sfnt_off000109c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000121d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D8 | 17644 bytes |
SHA-256: c5b4ea376b80ed9dce2a2e02abbbb2eda8bfda999782c21a53af758609b1ac3b |
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