MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. The PDF contains numerous external links, many of which are hosted on disposable domains and utilize UTM parameters, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' strongly indicate that the primary purpose of this document is to redirect users to malicious websites for downloading further payloads or engaging in phishing activities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 5
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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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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://crewmak.ru/uplcv?utm_term=yts+app+free+download+for+android PDF link annotation
- https://yaofangpeixun.com/upload/files/nekodemitilisokawunileso.pdfIn PDF document text
- http://gro-felix.si/uploads/51237436647.pdfIn PDF document text
- http://poongdung.com/FileData/ckfinder/files/20210916_A0BE1EC4D2025BB8.pdfIn PDF document text
- http://onsijsselstein.nl/userfiles/files/68989568289.pdfIn PDF document text
- http://22vek-omsk.ru/fck_editor_files/files/gufumelutibamag.pdfIn PDF document text
- http://15449010.com/FileData/ckfinder/files/20210914_8ED17FB58EB7960D.pdfIn PDF document text
- http://paulgraphics.paulsfashion.in/files/69662287651.pdfIn PDF document text
- https://highfieldhousehotel.net/nbloom/fckuploads/file/woxixubenaniwatiteliku.pdfIn PDF document text
- http://futboltotal.net/images/files/kakufuti.pdfIn PDF document text
- http://eastcity.hu/ufiles/file/movifevobu.pdfIn PDF document text
- https://cursosadistanciayonline.com/medios/files/bosunukukepevuwiruzisefe.pdfIn PDF document text
- https://sharidendesignasphalt.com/wp-content/plugins/super-forms/uploads/php/files/7a96a4f2f4ccbc4bacf032a32fcdd04a/85489009728.pdfIn PDF document text
- http://dragonspond.com/uploads/files/45806058391.pdfIn PDF document text
- http://space-edge.com/upload/files/64438884056.pdfIn PDF document text
- http://stavclearing.ru/upload/files/42567907037.pdfIn PDF document text
- https://promptcorporate.com/ckeditor/ckfinder/userfiles/files/latuwewezilujoj.pdfIn PDF document text
- http://cortocircuito.trialpanel.com/images/Upload/files/ruliruxaxopudekux.pdfIn PDF document text
- https://legyenegyjonapod.hu/userfiles/files/17140688732.pdfIn PDF document text
- https://pinpointfeedtech.com/ckfinder/userfiles/files/zagobutapesu.pdfIn PDF document text
- http://recuva.kr/upload/fck_img/1630654342/file/11846017370.pdfIn PDF document text
- http://tivati.com/uploads/userfiles/file/vapaga.pdfIn PDF document text
- https://chief-moving.com/editor_upload/file/wuvufudosab.pdfIn PDF document text
- https://tonwen.org/userfiles/file/72967275343.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_off0000b4ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4EA | 10560 bytes |
SHA-256: 9e725920b95bcb9ab9f10a676fa8d3d76f29a847e011415b7afacaf4161921f8 |
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font_01_sfnt_off0000cd22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD22 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e534.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE534 | 16968 bytes |
SHA-256: c798a06ed777af9fa86dec310a210c8cb824080d407b52d0dc8482543fea828f |
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