MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics indicate the document functions as a link farm, directing users to various external websites, some hosted on compromised CMS platforms. The presence of 'utm_term' parameters in some URLs suggests a phishing or social engineering lure, potentially disguised as a download link for 'talking angela old version apk'. No scripts were extracted, and the document body was unreadable, but the link farm behavior is a strong indicator of malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://crysiq.ru/uplcv?utm_term=talking+angela+old+version+apk PDF link annotation
- http://ppogrimall.com/upload/editor_image/file/lonigixewodugulefe.pdfIn PDF document text
- http://www.pibmg.com.br/ckfinder/userfiles/files/files/66286421479.pdfIn PDF document text
- https://shopexpert.com/app/webroot/files/userfiles/files/zizewixisefusareju.pdfIn PDF document text
- http://quangcongluc.com/upload/files/21038335983.pdfIn PDF document text
- https://manhremhoangvan.vn/wp-content/uploads/files/xogibosixedurizasa.pdfIn PDF document text
- http://ntvietnga.com/upload/files/5529945795.pdfIn PDF document text
- http://goteneplast.se/files/images/file/lonetixunulalat.pdfIn PDF document text
- https://learn-atdi.com/uploads/files/4326814279.pdfIn PDF document text
- http://stroyvodservice.ru/upload/File/nujoxejozosulonotomem.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161415bcf7a65a---94636206482.pdfIn PDF document text
- https://paramourpourbebe.bettygagne.ca/userfiles/file/gaxotinutet.pdfIn PDF document text
- http://cmtdental.com/upload/ckimg/files/xemadetavavexabikaxike.pdfIn PDF document text
- https://allmassage.net/upload/file/20210919091736.pdfIn PDF document text
- https://greenturtleproductions.com.au/wp-content/plugins/super-forms/uploads/php/files/f41d2ae6b5a4e8e4d0ce5cc57f0cb401/vanuwejex.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec9bc622b0---mifisopo.pdfIn PDF document text
- https://alev.az/userfiles/file/mulofotuxanolewinuxiseted.pdfIn PDF document text
- http://terezmisszio.eu/files/file/zidasopum.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133cd353b56b---54936000348.pdfIn PDF document text
- http://xn--or3bi2da319p.com/upload/fckeditor/file/liwuduvewokozazulapej.pdfIn PDF document text
- https://piti.leaddeehub.com/userfiles/files/27168938948.pdfIn PDF document text
- http://mudrberanova.cz/userfiles/file/90672689170.pdfIn PDF document text
- https://corcreation.twbiz.me/data/fckeditor/files/20210928_195613.pdfIn PDF document text
- https://managedentalclinic.com/ckfinder/userfiles/files/65231981264.pdfIn PDF document text
- http://actionelectric.pt/www/wp-content/plugins/formcraft/file-upload/server/content/files/161498357b3b77---60074943767.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_off0000b710.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB710 | 10592 bytes |
SHA-256: 5d044095114744b1d5181d7ead19ff05121b716117e2e840aa2fdd2ad96db5b7 |
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font_01_sfnt_off0000cf23.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF23 | 18936 bytes |
SHA-256: f3f18508e9ad9f06e6041c7d8923f910fb0287a204cea9223a805878a08dc5bb |
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font_02_sfnt_off0000ff4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF4D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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