MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF document contains numerous links, many pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term=supersu+apk+download+2020' in one URL indicates a lure for potentially unwanted or malicious software. ClamAV and ML classifiers confirm the malicious nature of the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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=supersu+apk+download+2020 PDF link annotation
- https://skinrepublic.vn/webroot/img/files/34346706579.pdfIn PDF document text
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16085a8c14367b---68461676560.pdfIn PDF document text
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/c5bb2c5871fb1b1e635a2cefa9786f59/zosiporusiselowiwiwa.pdfIn PDF document text
- http://triatlonbizuterie.cz/sites/default/files/file/dumamibirulefuzagulun.pdfIn PDF document text
- http://all-pass.com/folder/editor/file/punakumaxobitam.pdfIn PDF document text
- http://thingsantiquesla.com/userfiles/files/37320202156.pdfIn PDF document text
- http://www.awakohchang.com/image/upload/File/afovizelamowip.pdfIn PDF document text
- https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/22f8a6fcd5b72962826cc6cf092f4e4e/fuxojetipalevugeginife.pdfIn PDF document text
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/29f16dc4a22a2b2c075db667a9738cfb/wixamagupozo.pdfIn PDF document text
- https://systematix.pl/userfiles/file/xofimuviwebelepepaxe.pdfIn PDF document text
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607cc0abb5c9a---63764788955.pdfIn PDF document text
- http://phuocthuan.vn/images/pic/file/3446958844.pdfIn PDF document text
- http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089e5e741fb9---17580560212.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd847e5ce31---24962530548.pdfIn PDF document text
- http://asiavent.com/UserFiles/file/%5C/dibazexudupixi.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609edb289a170---81574958880.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e57d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE57D | 5488 bytes |
SHA-256: 1883cf59d9730e226bbeae8557fc131b6c68ba9afda210821473027be058f073 |
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font_01_sfnt_off0000f849.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF849 | 18992 bytes |
SHA-256: 8bc0599f7717fb1426b3971b9174a9ab42c4ed3d0b8e918f7bd3503739941f92 |
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