MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics reveal it functions as a link farm, with many embedded URLs pointing to potentially compromised or disposable hosting. These links likely serve as a lure for phishing attacks or to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://uro-medical.pl/zdjecia/fotki/file/kemuregupimanominorusow.pdf In PDF document text
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/ae4b337405f6d38f0388a36819ec097b/36864620060.pdfIn PDF document text
- http://texinpack.com/uploadfile/file///2021081822395383.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/netuxameverisez.pdfIn PDF document text
- http://hopkinshigh1961.com/clients/878968/File/niwokebotekumex.pdfIn PDF document text
- http://thriftstorewebsites.com/flash/thriftstorewebsites.com/file/kuramovobif.pdfIn PDF document text
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ee7ee2d0e97---pesamaleliloxotomox.pdfIn PDF document text
- https://foodvellythailand.com/upload/files/xidobo.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/f1ad70a5f9e346da7fcd27fe3d67b77e/86886047856.pdfIn PDF document text
- http://arcenevents.nl/site/upload/files/nobejivubiv.pdfIn PDF document text
- http://vector-mebel.ru/uploads/files/zawobeziwitidutumogiwoget.pdfIn PDF document text
- http://chetaomaynganhnhua.com/uploads/files/mexiketewuzugokod.pdfIn PDF document text
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/160cafe1c5dfb5---8160861423.pdfIn PDF document text
- http://thebeautyofdesign.nl/ckfinder/userfiles/files/78704739978.pdfIn PDF document text
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/c7c751a9a7db3f728d2e6d42040b33a4/girogizero.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/kv5rej8ieb7i5rp9ogi1ocgvme/sokuwesi.pdfIn PDF document text
- http://kartywspomnien.pl/uploads/assets/file/sulexuzuv.pdfIn PDF document text
- http://bertrandetgastineaudesigners.fr/userfiles/file/gazonitot.pdfIn PDF document text
- https://actor-conseil.com/files/file/lumiv.pdfIn PDF document text
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160d5d0d0486f0---sowurojofezesofuderevife.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/350e155db10d8e7bedbf9e3d0a0bb39b/febusojaku.pdfIn PDF document text
- https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/0b9215c21178d2ffb16c81d7499cb9fa/vajobavuzejexirese.pdfIn PDF document text
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/f093679fc27c4333bcdd002155d33397/vonibosogupetexuvi.pdfIn PDF document text
- https://horizontire.com/userfiles/file/bejazegosak.pdfIn PDF document text
- http://kaies.net/upfiles/210727031802307117gym21c.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=olimpia+splendid+manual+usuarioPDF 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_off0000e0ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0EA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f901.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF901 | 10580 bytes |
SHA-256: f9f6e9597d5adbf142ff4b202275f7b19ae7b568985e0ac7afd954e16749665e |
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font_02_sfnt_off0001110c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1110C | 20516 bytes |
SHA-256: 6b7bc4943ec07940b7e8a65964ae5cf367539e7067c222e40014c070cc4cac0d |
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