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 a phishing trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many embedded URLs pointing to potentially compromised or disposable hosting. The primary purpose appears to be directing users to external malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://jyjwqj.com/uploadfile/file///2021091802280882.pdf In PDF document text
- http://master-vin.ru/files/file/zajexad.pdfIn PDF document text
- https://blagoustroystvo24.ru/ckfinder/userfiles/files/969608197.pdfIn PDF document text
- http://saopauloairporttransfers.com/ckfinder/userfiles/files/20185633491.pdfIn PDF document text
- http://burragebrothers.net/demo/jolie/beta/userfiles/files/76894792197.pdfIn PDF document text
- http://cjcounsel.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/juwuwediporufoku.pdfIn PDF document text
- http://rc-modeller.se/images/file///13193375874.pdfIn PDF document text
- http://partiaweb.com/upload/files/wurivivivagi.pdfIn PDF document text
- https://exihomes.com/userfiles/files/voximumuligexixuzisu.pdfIn PDF document text
- http://rhondadejean.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zajugigadopetusopif.pdfIn PDF document text
- https://stef-nancy.fr/upload/document/fowizoz.pdfIn PDF document text
- http://zamgph.com/uploads/file/250433416973.pdfIn PDF document text
- https://www.bevillelecomte.com/ckfinder/userfiles/files/4865259.pdfIn PDF document text
- https://morganmethod.com/ci/userfiles/files/33373989942.pdfIn PDF document text
- http://soft-pro.hr/upload/datoteke/29168837483.pdfIn PDF document text
- http://vagtteam.dk/userfiles/Files/desemoradoxoziradoz.pdfIn PDF document text
- http://hycxchina.com/filespath/files/20210918103757.pdfIn PDF document text
- http://kronospan-mofa-hungary.hu/editor_up/87127505279.pdfIn PDF document text
- http://www.jucadent.es/ckfinder/userfiles/files/rodamoziru.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/d13796276389be04807bec2b1d82fa66/watudekegonen.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615a5fed55ff7---tidulebonomipudakigimefiw.pdfIn PDF document text
- https://dpengineerindia.com/admin/userfiles/file/6574000616.pdfIn PDF document text
- http://techscreening.com/userfiles/files/55170436304.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/161526afab62d3---23672829971.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=sql+server+try+catch+rollbackPDF 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_off0000b0c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0C7 | 16744 bytes |
SHA-256: b6a66dd7836eb89f61badab91ac5ebafca02b6271599328786cce8c75bbdc414 |
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font_01_sfnt_off0000dbb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDBB5 | 10764 bytes |
SHA-256: b5587bfcecf734a8bf1d07f77b2643502da270623f05232000ca48410382d630 |
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font_02_sfnt_off0000f4b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4B5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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