MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple unknown PDF files hosted on compromised WordPress sites and other disposable domains. The presence of numerous links and the use of compromised hosting suggest a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://zdravi-kromeriz.cz/files/file/61820272238.pdf In PDF document text
- https://weboonline.com/ckfinder/userfiles/files/sofowuduzer.pdfIn PDF document text
- http://ficfart.org/userfiles/file/69227796405.pdfIn PDF document text
- http://xn--3e0b556bhrbowi6undva.com/ckupload/files/wukiwepofabukaku.pdfIn PDF document text
- http://zjhywt.com/images/upload/File/fiwuxevazuw.pdfIn PDF document text
- https://haruhonpo.com/upload/haruhonpo/files/morovemirurilomulogetesa.pdfIn PDF document text
- https://servicepapik.ro/files/74580395615.pdfIn PDF document text
- http://freeorden.com/media/file/89925649595.pdfIn PDF document text
- http://lukasikgroup.pl/Image/files/lofekexezinaduguxexew.pdfIn PDF document text
- http://fsoa.cn/userfiles/file/wififujevijakules.pdfIn PDF document text
- https://yodishit.com/uploads/userfiles/file/wajemolunekazajepamafa.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161328299a8eb5---viwafikatuvuduneb.pdfIn PDF document text
- http://hrzservices.com/uploadfiles/file/ropusevafigelir.pdfIn PDF document text
- http://miyagi.chi-kara.net/Upload/files/betolanalepikidanope.pdfIn PDF document text
- http://pacemakerpressintl.com/uploads/assets/file/desagafumuzak.pdfIn PDF document text
- http://cukrarska-vyroba.cz/UserFiles/File/30403600492.pdfIn PDF document text
- http://hcstonetw.com/uploads/files/202109020005099268.pdfIn PDF document text
- http://dkkarsin.pl/img/upload/files/sinego.pdfIn PDF document text
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/dd4b35d25ffcc6d22b68e7c426df74a5/muvopazogunobuv.pdfIn PDF document text
- https://thediamangroup.com/_images/files/fepigejewomadag.pdfIn PDF document text
- http://hungthanhauto.com/luutru/files/mibuvapujovegoz.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/a104f5805ef029b50c2ffa2574c9b787/gabovigevi.pdfIn PDF document text
- http://ongxoanhdpe.vn/upload/files/dixexubomutukepure.pdfIn PDF document text
- http://www.naturhalles.fr/fckeditor/userfiles/file/94155355279.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=ttpod+music+player+for+androidPDF 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_off0000d1d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1D3 | 17564 bytes |
SHA-256: 596724332facb13d7f96a74e468d4fbd77dd85ffc3fbee33d873cc6d9105fbd4 |
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font_01_sfnt_off0000fefc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEFC | 10956 bytes |
SHA-256: 5d45eb57f1fe0ce8d4b702e2657a936f5c30b1c48000d20da621299d58b20c21 |
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font_02_sfnt_off0001186c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1186C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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