MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised WordPress upload directories, suggesting a phishing or malware distribution scheme. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' further supports this, indicating the document is designed to host a farm of links pointing to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9830
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://irlanc.ru/uplcv?utm_term=giraffes+live+in+groups+called PDF link annotation
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb1dce710d---37588701148.pdfIn PDF document text
- https://bimstudioinc.com/media/files/wujab.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/ugasodaxilinapodazukuba.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/78394317904.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160b2187545f54---83647566037.pdfIn PDF document text
- http://mixmarketing.vn/upload/fck/file/letomulezojulozowi.pdfIn PDF document text
- https://juniorclublivorno.com/sitonews/images_upload/files/koxajajipijadisazemaru.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/48477225068.pdfIn PDF document text
- https://dovolena-jiznicechy.cz/uploads/73834780322.pdfIn PDF document text
- http://anhopphat.com/uploads/files/guvuvovujevanutodomu.pdfIn PDF document text
- http://teenmag.cz/userfiles/file/fumomuridutegel.pdfIn PDF document text
- http://ritadas.in/userfiles/file/firubaxegasutujepijekuwoz.pdfIn PDF document text
- http://dianacb.cz/userfiles/file/37257854502.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608057478a2ee.pdfIn PDF document text
- https://berbagiangka.com/contents//files/doxuzufarawajazarabugux.pdfIn PDF document text
- http://jmk.kr/ckfinder/userfiles/files/xokekevepejobudineto.pdfIn PDF document text
- http://mujuerp.com/uploads/ckeditor/files/20210609012934.pdfIn PDF document text
- http://mploa.com/clients/2/2c/2ccb326c3583e393996f575e36ee3974/File/febiliziloraripo.pdfIn PDF document text
- https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/ktp49cidqdpt0fdb3ps858ofh3/sedisurovapakepugowojafa.pdfIn PDF document text
- http://niestachow.pl/data/aktualnosci_imgs/file/34419580752.pdfIn PDF document text
- http://makaeximworld.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a581ad3a4ea---zaneduvewaroboba.pdfIn PDF document text
- https://fid-data.fr/app/webroot/uploaderfiles/jipop.pdfIn PDF document text
- http://ascensionchina.com/userfiles/file/17466456627.pdfIn 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_off0000e658.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE658 | 17140 bytes |
SHA-256: 02cd91a53b59f22978c6511e3c6b6a3f5caf97b869c3516a94310740bc1389f2 |
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font_01_sfnt_off000112d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D8 | 10904 bytes |
SHA-256: 9e651e88fcb85d123ef57b50fe80b04bd88b9a4b621e8f54ddabcd5d16a38e9c |
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font_02_sfnt_off00012c05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C05 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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