MALICIOUS
136
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF document that contains a link farm and is flagged by ML classifiers as malicious. The document's content, though heavily obfuscated in the provided excerpt, is identified as a lure for remote-support tools, instructing users to install or connect with such software. This suggests an attempt to gain unauthorized access to the user's system under a pretext. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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://agnieszkapawlik.com/userfiles/file/jezopubusejurib.pdf In PDF document text
- http://pinturasoltra.com/images/slider/files/69446880474.pdfIn PDF document text
- http://shsuorui.com/uploadfiles/fckeditor/20210628/file/16248360547144.pdfIn PDF document text
- https://aartipalette.com/userfiles/file/28665982923.pdfIn PDF document text
- http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160708f60d99fd---36731812011.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/gj18mo4n5dgp19jl7bk29admh9/xenunademosalevemasadi.pdfIn PDF document text
- http://badischer-kunstverein.de/ckfinder/userfiles/files/dutetokisozuvifomepa.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608788ddd608a---kejimakegox.pdfIn PDF document text
- https://avgdesign.com/userfiles/file/duxijenifajuf.pdfIn PDF document text
- https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b57b4ca0ce---vowokipok.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/n941h8hmtjcn3rtmku2qvfj7r7/69087993380.pdfIn PDF document text
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/tdhe2uhsv6nt4pnl6lgcdc5go5/sivumebojuduziraworu.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/d1213d1cb88d7c1ed4dc843bbc012adc/57959579215.pdfIn PDF document text
- http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd6397f80a---83389693683.pdfIn PDF document text
- https://autoandtruckrepair.net/nbloom/fckuploads/file/fobabiwebajiwopovunax.pdfIn PDF document text
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/c8b2c9c90faa5844259eb036df26f4a0/vilanipamenagofaveb.pdfIn PDF document text
- http://lnshiyue.com/userfiles/file/20210603005012_1739698029.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/0daf18dd82de539f6327388be5ee484b/seninovolarixuvamega.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ac646a6bcb5---90775740364.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609e21d4eb79a---tomezivij.pdfIn PDF document text
- http://ekotop.eu/userfiles/file/15433513163.pdfIn PDF document text
- http://compufoxmail.com/userfiles/file/gasutawimoxaf.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607f652b8d35c---gabefavuf.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=grand+theft+auto+5+manual+downloadPDF 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_off0000f1da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1DA | 17088 bytes |
SHA-256: b1b6d1c255e65c9fc34d277d3662b460b8fa4aae32797fdd81bb3a154b075658 |
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font_01_sfnt_off00011e90.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E90 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000136a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x136A7 | 10716 bytes |
SHA-256: 9b8c0a9e1b661b95a2aa7fb1eb1a0c92156f4a421c6c37163f8da22ca28f856c |
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