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 0.9998
Heuristics 7
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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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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://smidgel.ru/uplcv?utm_term=pubg+mobile+lite+download+hack+version PDF link annotation
- https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/32fa693392b1f3462d34fd65a9828264/95573014676.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/d37if01sf7nh72nvo115omlil1/gubewenewosirogenula.pdfIn PDF document text
- http://www.lugashotel.com/data/editorfile/kazuxemimuwasosa.pdfIn PDF document text
- http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16084598130fbb---luxitidigujatazokuna.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c141d7e02---93219906922.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606da668436a4---vilejavodubate.pdfIn PDF document text
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/24e8c5dacd158603ec16103b3fcb9661/11976681489.pdfIn PDF document text
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607dbcd42b8d8---76590721662.pdfIn PDF document text
- https://cosalesrep.com/wp-content/plugins/super-forms/uploads/php/files/67246afb39b667d7854b2ac6b9c05927/8746479424.pdfIn PDF document text
- https://3dreamstudios.com/wp-content/plugins/super-forms/uploads/php/files/8fca9fdb000945aed3bdd279ff9a9c61/tevememetilal.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f6cedfe5d---36986804343.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1ee514113---24638473530.pdfIn PDF document text
- http://www.annaleehuber.com/content_files/file/77310652076.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098417d1f8ee---riporiw.pdfIn PDF document text
- https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/64836f15d205a012d90b89757abfbc0f/fuzugiwiwufafe.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ee3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE3F | 5708 bytes |
SHA-256: c6da8d6621512b15231258dcdd5dfbb1f2bf223c5096d7daa9f58d9c1c735cba |
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font_01_sfnt_off00010191.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10191 | 12332 bytes |
SHA-256: 4bd695c05d93aa5255935f3a77cdda511328bab33131831372bc72f0a3818d81 |
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