MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised CMS uploads and disposable hosting domains. This suggests the document is designed to act as a link farm, potentially leading users to phishing sites or malware downloads. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9891
Heuristics 5
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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 http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/9d3e592958223626912817ca36541493/42525652635.pdf In PDF document text
- http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/22369535992.pdfIn PDF document text
- https://mariellatriolo.it/public/file/63985858809.pdfIn PDF document text
- https://majorsagilekvaros.hu/uploads/file/visizetizamowetizegape.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b97116872f6---24502834184.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/50eknugrlp5t8mnb510k744qe0/mazogofuk.pdfIn PDF document text
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/dcf8743bead2f29c888c96790ca80a9a/japukuluki.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/1608517d5e29f6---13541792849.pdfIn PDF document text
- http://sztarmedia.hu/_user/file/66014942763.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160949e009a079---25408602504.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b755315f676---73531794805.pdfIn PDF document text
- https://sardavetri.it/userfiles/file/81640740745.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b44af11a757---ketobakeneputarivoranu.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/lelazemet.pdfIn PDF document text
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/f9b89406d498ab17ffb5a0d9e1f2c65f/vizubaridikuguniwa.pdfIn PDF document text
- http://thedreams.cz/files/21591441187.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160a24cbbaba9e---67939053461.pdfIn PDF document text
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/38b0ebe3763fa23c01eb017f86c79a36/93138888173.pdfIn PDF document text
- https://triosms.com/userfiles/file/30835362002.pdfIn PDF document text
- http://vanharteyoga.nl/uploads/files/wejogamuzidurexotusageri.pdfIn PDF document text
- http://theettiaresmontreal.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/wizofij.pdfIn PDF document text
- https://wavemed.it/wp-content/plugins/super-forms/uploads/php/files/cfc9d8836e4320db3235f84e81619ddf/6148310299.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090c61005f63---45073747026.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089598f108cb---26956933401.pdfIn PDF document text
- https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608e5d2d69397---devipoxet.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=9+yards+to+feetPDF 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://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_off00014632.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14632 | 17172 bytes |
SHA-256: be1b48daf831e3243ad18679b8bde123f225c3cee01ff6288afc38cae1c5e40c |
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font_01_sfnt_off0001730d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1730D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00018b24.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18B24 | 10292 bytes |
SHA-256: c0906c9e3df641cab0bf2cc134df0f0db65973f7467cfa875f175523b272876a |
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