MALICIOUS
146
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a link farm with numerous distinct hosts, as identified by the PDF_SEO_DISPOSABLE_LINK_FARM heuristic, strongly suggests a phishing or malware distribution campaign. While no scripts were extracted, the document's structure and URL patterns are consistent with attempts to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://taociren.com/upload/file/210911020343773501j6gor8ua9onc.pdf In PDF document text
- http://mutamobilya.com/images_upload/files/15804485618.pdfIn PDF document text
- http://www.kowel.com/ckfinder/userfiles/files/1631870007.pdfIn PDF document text
- http://fuguchair.com/upfolder/e/files/20210916122539.pdfIn PDF document text
- http://mail.me.ntou.edu.tw/ckfinder/userfiles/files/20210913_230807.pdfIn PDF document text
- http://majorpropertygroup.com/userfiles/files/54602060154.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-7/20210907172202930286.pdfIn PDF document text
- http://kozelskadm.ru/files/uploads/files/rusesavutiwuvanes.pdfIn PDF document text
- https://cissud.eu/uploads/ck_editor/files/66400143429.pdfIn PDF document text
- https://pomtco.com/technical/files/file/47535143958.pdfIn PDF document text
- https://art-gallery.mn/uploads/files/patujoroxifasidabajazi.pdfIn PDF document text
- https://aldurra.ly/images-editeur/img/file/sakuzunigalik.pdfIn PDF document text
- https://basalyemek.com/ckfinder/userfiles/files/fagamumomunugikobapekis.pdfIn PDF document text
- http://akinmedical.com/uploads/file/73949455506.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/161395f95ec0ba---rixodewawowimobagi.pdfIn PDF document text
- http://miraesusan.com/ckupload/files/kifakapijodolozedipi.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/4d406447218a90d69b8b9a408eb867ab/54573667846.pdfIn PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/rebuxubikubunotidaxakari.pdfIn PDF document text
- http://master-stroi76.ru/userfiles/file/11027823888.pdfIn PDF document text
- https://tinnituskozpont.hu/files/wujunekopokalurefogo.pdfIn PDF document text
- http://maxidmum.com/images/upload/fck/file/37308111798.pdfIn PDF document text
- http://goghepcacloai.com/media/ftp/file/80137162635.pdfIn PDF document text
- http://www.ctnphrae.com/ckfinder/userfiles/files/22953328449.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=connected+wifi+qr+code+generator+without+passwordPDF 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_off0000d40c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD40C | 17372 bytes |
SHA-256: fc398bcb962308a1f9037e45e412aa4e132540620686902b7abfe6aa7a1d3add |
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font_01_sfnt_off00010146.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10146 | 11216 bytes |
SHA-256: 1e7257119bcc990aaa4643c6e7d54e525456da32782e917965c95208ee49a7a5 |
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font_02_sfnt_off00011b15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B15 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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