MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a link farm on compromised or disposable hosting. The embedded URLs, such as 'https://chcial.ru/uplcv?utm_term=download+yoruba+bible+apk', suggest a lure to download potentially malicious content. The PDF structure and numerous external links indicate an attempt to direct users to external resources, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://chcial.ru/uplcv?utm_term=download+yoruba+bible+apk PDF link annotation
- http://aj-freight.com/ckfinder/userfiles/files/82020143292.pdfIn PDF document text
- https://hankilfood.com/upfile/files/nesetarateram.pdfIn PDF document text
- http://rococosofa.com/files/files/pofeviziginajogovixaz.pdfIn PDF document text
- http://vrajacreation.com/uploaded_files/userfiles/files/ripaw.pdfIn PDF document text
- https://eastmanllc.net/ckfinder/userfiles/files/pigizupa.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/4028653743.pdfIn PDF document text
- http://zamgph.com/FCKeditor/editor/filemanager/connectors/php/uploads/file/081422007836.pdfIn PDF document text
- http://satakantaresort.com/user_img/files/41563034548.pdfIn PDF document text
- http://moda-minulosti.cz/docs/momin/file/67835852465.pdfIn PDF document text
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613627f8dfd87---35931805771.pdfIn PDF document text
- https://zemtechnika.lt/public/site/0files/65864099360.pdfIn PDF document text
- http://taxplus.in/images/contentimages/files/80794473354.pdfIn PDF document text
- https://krainaogrodow.eu/zdjecia/fck/file/jisojeganosunu.pdfIn PDF document text
- https://daaeportrett.no/upload/file/80661409630.pdfIn PDF document text
- https://aurorabersinar2.com/contents/files/29064751392.pdfIn PDF document text
- https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/16133a7caaf1ef---pudawokukatagepore.pdfIn PDF document text
- http://hijoin.hu/editor_up/nurafuwapuduvo.pdfIn PDF document text
- https://bulendengin.com/upload/ckfinder/files/jabuze.pdfIn PDF document text
- http://dieta-plus.pl/userfiles/file/5289810572.pdfIn PDF document text
- http://geombiagioschettino.eu/userfiles/files/95063576771.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d02585fbcd---zafonipezeferadenavaxisu.pdfIn PDF document text
- http://nhadep30giay.com/uploads/image/files/kijejexo.pdfIn 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://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_off0000d5b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5B4 | 17284 bytes |
SHA-256: 9468c92686c8a965e554c5679ecfddd49bf9ff42588bd825517cb2719142d8fd |
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font_01_sfnt_off000102d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011aec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AEC | 10652 bytes |
SHA-256: 24e58ca7d56d6b762ce145bea29bfe41f0aea0914c7157010e9eef08eed5221b |
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