MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the PDF functions as a link farm, directing users to multiple external websites, some hosted on potentially compromised or disposable domains. The presence of numerous unknown URLs suggests a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://huaienclinic.com/uploadpic/files/51264007623.pdf In PDF document text
- http://gonzagafood.com/userfiles/files/mikunulaxebo.pdfIn PDF document text
- https://bulgariapools.com/contents/files/46551045678.pdfIn PDF document text
- http://propack-th.com/image/upload/File/91643214457.pdfIn PDF document text
- http://curry-box-deluxe.de/userfiles/file/difujexowubelafifanegaxot.pdfIn PDF document text
- http://dataction.org/demo/dataction/media/lusuloniselu.pdfIn PDF document text
- http://tmacfashion.com/ckfinder/userfiles/files/55762148459.pdfIn PDF document text
- http://moonlightmontessori.com/upload/files/fuxuwuve.pdfIn PDF document text
- https://horacebatten.com/ckfinder/userfiles/files/29793797392.pdfIn PDF document text
- https://adtw1.com/ckfinder/userfiles/files/fodawebejisaxuxifojafejo.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146296b80b56---98089981190.pdfIn PDF document text
- https://tele-video.ru/upload/files/gapuzadodanelizew.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140130a8506b---12246313007.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/jakazusewolutubuziwekixo.pdfIn PDF document text
- http://eclickapps.in/userfiles/files/84836883225.pdfIn PDF document text
- http://bortran.com/upload/image/file/20210906023353.pdfIn PDF document text
- http://shepardinteriordesign.com/rw/upload/file/vilosarupobobuta.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16132c6197305a---pidarategabu.pdfIn PDF document text
- https://horgaszvelem.hu/ckfinder/userfiles/files/makan.pdfIn PDF document text
- http://www.corazondelsol.es/ckfinder/userfiles/files/bumodaxugoxozebi.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614684a28c109---56109645913.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=music+player+apps+downloadingPDF 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_off0000e395.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE395 | 10884 bytes |
SHA-256: 735236939c0c456f064b3e00fb9793d56275902abcc15c71bd8d8b5adb376e06 |
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font_01_sfnt_off0000fcb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFCB5 | 17268 bytes |
SHA-256: 19ec8cf116af6591dcd9e7b63a32ea03069a079679aafd65a2f32d258ca55276 |
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font_02_sfnt_off00012967.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12967 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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