MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous external URLs, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of embedded JavaScript, though not explicitly detailed, is a common technique for exploiting PDF vulnerabilities or initiating further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://ketchas.ru/uplcv?utm_term=fes+lock+apk PDF link annotation
- http://klinok-saintp.ru/files/28747707351.pdfIn PDF document text
- https://chiuman-hk.com/images/file/zipikopexiwimim.pdfIn PDF document text
- http://artsar.pl/userfiles/file/zifebowevevubijikipaxemi.pdfIn PDF document text
- http://beauty214.com/uploads/files/202109111155538925.pdfIn PDF document text
- https://hanurichurch.org/ckfinder/userfiles/files/sediviwolaj.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/1504197309e8c8601760d6c9343ea6f9/59843841754.pdfIn PDF document text
- http://mylodge-naoshima.com/images/blog/file/zexaloji.pdfIn PDF document text
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/7dcpkt3l0e56uc3sjl1f37lbcf/7090058631.pdfIn PDF document text
- http://ppfi-online.com/userfiles/file/87124088187.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/64254234496.pdfIn PDF document text
- https://ekinyalitim.com/depo/sayfaresim/file/45149000385.pdfIn PDF document text
- http://wxhsbl.com/ckfinder/userfiles/files/20210913_013730.pdfIn PDF document text
- http://myxroad.net/upload/userfiles/file///ronutumimipudizij.pdfIn PDF document text
- http://hglobaltour.com/FileData/ckfinder/files/20210917_F82B87EBB62F1BDD.pdfIn PDF document text
- http://studio70.eu/userfiles/files/98448208774.pdfIn PDF document text
- http://beganijewellers.com/ckeditor/ckfinder/userfiles/files/fibekuxafaz.pdfIn PDF document text
- http://findmecakes.com/userfiles/files/miwuvuvofome.pdfIn PDF document text
- http://nikkenj.com/userfiles/file/8059451350.pdfIn PDF document text
- http://obchodsezlatem.cz/upload/files/mulepafoxiduzonenukupoja.pdfIn PDF document text
- http://pattarasawat.com/ckfinder/userfiles/files/bugoxuxoj.pdfIn PDF document text
- https://www.kiakaha.gr/wp-content/plugins/super-forms/uploads/php/files/shpearndf73cr2htn4v8mv19n8/962894393.pdfIn PDF document text
- http://luckysim.com/userfiles/file/navixexanomarepu.pdfIn PDF document text
- https://talaa-obour.com/webmisr/uploadwebmisr/file/52325113162.pdfIn PDF document text
- 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_off0000d9b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9B1 | 18088 bytes |
SHA-256: ee67b6c12670fffe9ee001413e0d8df3aff632e314c3d4dae4594984fead4e26 |
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font_01_sfnt_off000108e4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108E4 | 10040 bytes |
SHA-256: 4430bac64a1dc8b0389ccc1386f91729855f67c8b4be97eaa964c9d2ba44c6bd |
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font_02_sfnt_off00011f5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F5E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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