MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document employs a social engineering tactic by presenting a lure for browser extension or update installation, a common method for distributing malware or stealing credentials. While no scripts were directly extracted, the presence of numerous embedded URLs, many pointing to compromised CMS upload directories, suggests a mechanism for delivering a secondary payload. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://amursvoidom.ru/media/files/walodevesamoduxojipip.pdf In PDF document text
- https://alibabaoman.com/basefile/alibabaomancom/files/61119966975.pdfIn PDF document text
- https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/99128b67044599403068c0767c6d26bd/gefowebobinifimovogarow.pdfIn PDF document text
- https://vmwarts.com/ecovic/file/zigutivikitabuviziguvur.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a221c064d1c---pebum.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cceba9c3445---25711298704.pdfIn PDF document text
- http://willismctyeire.com/clients/c/cd/cd1fd5262213d36872a77bd42df049b7/File/fegivadufatir.pdfIn PDF document text
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b6d539aa286---92548136632.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/02a256dd4e211c12ca2b1c404c23284a/57324421355.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/o1o0itlrb8eojsnvm3sqkbr8bh/9709266050.pdfIn PDF document text
- http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/23e87e36a0101fcc1497271bcb9ee998/77851021458.pdfIn PDF document text
- https://www.litesourcenc.com/wp-content/plugins/super-forms/uploads/php/files/94ad927b164a52d6b56e6c7467fb8711/luxafaxefulivomoselaxeju.pdfIn PDF document text
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba5f386a210---14152863707.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/2v81o3l6vljs7beu837u9lgr1k/92386952295.pdfIn PDF document text
- http://web-news.eu/www/pkpar/userfiles/file/63341944761.pdfIn PDF document text
- https://giorgiosantinelli.it/file/19393337648.pdfIn PDF document text
- http://whatdwellswithin.com/file/delogojujibi.pdfIn PDF document text
- https://feltshoe.com/userfiles/file/23960910277.pdfIn PDF document text
- http://1hozain.ru/files/userfiles/files/jigebaxo.pdfIn PDF document text
- https://chptravel.ir/data/file/wabotezogop.pdfIn PDF document text
- https://cevhertemizlik.com/userfiles/files/momigotademulovadox.pdfIn PDF document text
- http://hkxhjfc.ltd/uploads/files/20210707134203.pdfIn PDF document text
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160df6930d00cc---1817008065.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=google+oracle+apps+jobsPDF 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_off0000e549.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE549 | 10564 bytes |
SHA-256: f246490186c000a27602c246e196c4f323a0b97779f9a78ae3d64aaa09a3fb2d |
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font_01_sfnt_off0000fd54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD54 | 16680 bytes |
SHA-256: 9bced6082a03b9225db95ef46fa060fea5fd0ff5cebb072d0f6cb49a7809fa80 |
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font_02_sfnt_off0001283d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1283D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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