MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with several URLs pointing to compromised CMS upload directories, suggesting it's used to distribute further malicious content or phish users. The document body is heavily obfuscated, preventing a clear understanding of its specific lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://chilegastronomia.cl/uploads/userfiles/files/woxusitotiketatenemoja.pdf In PDF document text
- http://1night2day.com/ckupload/files/48742804985.pdfIn PDF document text
- http://lukoilmarine.com/ckfinder/userfiles/files/51179027446.pdfIn PDF document text
- http://sswjeans.com/files/1371075179.pdfIn PDF document text
- https://bruceautoservice.com/files/file/37687242534.pdfIn PDF document text
- http://sdds.be/userfiles/file/86953066664.pdfIn PDF document text
- https://www.jakketoes.be/ckfinder/userfiles/files/sufafagipudif.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/c3532ec47f6fc79ae1d540bdc5010dc1/53082383076.pdfIn PDF document text
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141d54b4c7b8---zotasokafikilejiser.pdfIn PDF document text
- http://www.specemc.ru/upload/files/12925504305.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/87481377120.pdfIn PDF document text
- http://stressmanagement-karriere.de/userfiles/file/87945257250.pdfIn PDF document text
- https://www.rapn.ru/ckfinder/userfiles/files/23752420824.pdfIn PDF document text
- https://perfumes.dropship-tracking.com/userfiles/files/44928147857.pdfIn PDF document text
- http://wksystems.net/HotelEstimator/userfiles/file/lilibumekirogosiburoxibat.pdfIn PDF document text
- http://aroma-es.red/yamituki-n/uploads/files/49643997489.pdfIn PDF document text
- https://igk-lilienthal.de/downloads/fivosaluroxi.pdfIn PDF document text
- https://sailstudy.in/ckfinder/userfiles/files/51936280500.pdfIn PDF document text
- http://sitoad.com/bbqjoekey/files/202109162223117971.pdfIn PDF document text
- https://datatalk.ilvzhou.com/upload/files/2021/09/202109140837078492.pdfIn PDF document text
- http://bytip.net/filespath/files/20210916133706.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/2075321071e3d784f56af0739ec0f061/rimadig.pdfIn PDF document text
- https://thibiditrading.com/public/userupload/files/gusarofusiwaxov.pdfIn PDF document text
- https://beysukonaklari.com/ckfinder/userfiles/files/fetumunexetubodokase.pdfIn PDF document text
- http://ashole.hu/UserFiles/File/70140134488.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=download+instagram+repost+appPDF 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_off0000d922.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD922 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f139.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF139 | 10820 bytes |
SHA-256: 6118728a0339cdfb127b597f5178c5ef3083aff06205d8766b46ac7d823fc0cb |
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font_02_sfnt_off000109f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109F7 | 17524 bytes |
SHA-256: 5b0bbbb4c363fb2ea807fe4ac30f0aa110e08761771d0ae732311aac6d269a9f |
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