MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous external links, many pointing to compromised CMS upload storage or disposable hosting, suggesting a link farm designed to redirect users. The presence of these links and the overall detection indicate a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
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://jingluo.net/uploadfiles/files/31677262576.pdf In PDF document text
- http://xn----9sbkvfu2aex3d.xn--p1ai/ckfinder/userfiles/files/70508523947.pdfIn PDF document text
- http://xaydunghoangthanh.com/img_duhoc/files/52324012056.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1606e944584c22---jironosubati.pdfIn PDF document text
- https://nisahanpin.com/calisma2/files/uploads/22971838451.pdfIn PDF document text
- https://betentour.com/sites/default/files/file/78981858438.pdfIn PDF document text
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/1609849472edd5---85489647236.pdfIn PDF document text
- https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/0e91632420fd83fb497c78490821fa2b/debumilojalamaral.pdfIn PDF document text
- http://aitrans.cn/UploadFile/file/F1202106212249382257.pdfIn PDF document text
- https://irisapp.cn/uploadfiles/fckeditor/20210621/file/16242571357471.pdfIn PDF document text
- http://eia-edu.com/userfiles/file/xafirigibekizid.pdfIn PDF document text
- http://cukrarnakolbaba.eu/obrazky/files/febevubenepu.pdfIn PDF document text
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/f9b6f3c0e61f9944d40feaa7db455ee9/vefozolanasaxe.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ba58179aace---golenixedenejiw.pdfIn PDF document text
- http://dentalweek.eu/userfiles/files/16694923771.pdfIn PDF document text
- http://dorrstrechy.cz/UserFiles/File/6565834527.pdfIn PDF document text
- http://harryreichert.de/uploaded_pics/News/file/wibewadaropagopavu.pdfIn PDF document text
- http://dok-vo.ru/userfiles/file/judoxo.pdfIn PDF document text
- http://clear-es.net/yamituki-n/uploads/files/86449948627.pdfIn PDF document text
- https://yourtuscanyguide.com/wp-content/plugins/super-forms/uploads/php/files/cab2n9hvsigqi15s8n73ekntg7/vabugorabuvuzojeriganek.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/ronepegagavetito.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=airsep+focus+service+manualPDF 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_off0000c5ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC5ED | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ddff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDFF | 17748 bytes |
SHA-256: 2d6137262e3aedeb5ecd4262725388416b31f702d8d462c84eafc619fdeeaa9a |
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font_02_sfnt_off00010c28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C28 | 10688 bytes |
SHA-256: 2fdd0ce9ca97d5952eee11aeab64fbec04f67d69178008d8f10482b0a844eda9 |
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