MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to compromised CMS upload storage, suggesting a link farm designed to redirect users to malicious content. The presence of these URLs and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=15+hand+signals+in+volleyball
- http://reikihaus.com/clients/75291/File/kesibizutu.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/6dcb6994ecb78d3768fc0403d4762b64/39044358535.pdf
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609b5fffd0328---49270064973.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b51d46e0f---79418906276.pdf
- http://gorisum.net/fckeditor/upload_file/file/20642607811.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7acd366993---85221020110.pdf
- https://amerismithenterprises.com/wp-content/plugins/super-forms/uploads/php/files/d683aa2a95771699beb715f3c92f7e8e/80510505780.pdf
- http://apvn.info/userfiles/file/35453626618.pdf
- http://gabortech.com/admin/file/pavewelojowasubazeloda.pdf
- https://puertoestereo.com/wp-content/plugins/super-forms/uploads/php/files/bk75v41oq82ov3p2a67o3lbm7f/motorukutepigabime.pdf
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf08b075a9---liwidujedozoji.pdf
- https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/v7tm5kiq94k37d7alho883n0a7/muvorexopow.pdf
- http://waltwhitman1964grads.com/clients/6/6c/6c9ae932573016e5ff31759a10dce4b4/File/pufaduwumumiz.pdf
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff0a2db4fb---9877507592.pdf
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/te3mgqi3akou4762p3e0m926di/mudixudera.pdf
- http://thedreams.cz/files/zuratojofepeb.pdf
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16090dbdc15ad4---99732152093.pdf
- https://jakspravnenapsa.cz/userfiles/file/36595760483.pdf
- http://myredm.ru/uploads/file/90687546625.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/160cb07504e054---65426365136.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16092868156163---69831483254.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1609de6d24868d---88235435936.pdf
- https://jaiminsales.com/ckfinder/userfiles/files/38321028129.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000db17.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB17 | 16792 bytes |
font_01_sfnt_off0000f32e.bincf5cef54624734471ed152c7802f0daba4958c1e107b6b071192fae6afea5e46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF32E | 10736 bytes |
font_02_sfnt_off00010b90.bin6b39828456dabd982dc9d8d9a9fa9871150af3b387873c67b15ab5ff91c01acd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B90 | 16916 bytes |
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