MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains numerous links to external websites, many of which are hosted on compromised WordPress installations or disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. No scripts were extracted, but the presence of external links points to a likely spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://woods-china.cn/ci2/userfiles/files/20210617113139.pdf
- https://xaydungdonggia.com/app/webroot/files/images/pages/files/xuvukutuxenup.pdf
- http://phanphoiongnhuahoasen.vn/upload/files/26325066661.pdf
- https://www.cr-sdc.org/wp-content/plugins/super-forms/uploads/php/files/6020189f58961aadf304d4578322bb91/76783179209.pdf
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/ipsm7ugd74crtsej47b0ukcod0/36856179362.pdf
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/6f1164c218efdc72717f47566fec45c8/rurekosilo.pdf
- http://dglytbt.com/upfolder/e/files/20210815224302.pdf
- http://jkbprivateiti.com/userfiles/file/webomipulafaluxag.pdf
- http://aedelsur.com/contenido/files/54955433204.pdf
- http://nwatchonline.net/userfiles/file/91006270404.pdf
- https://psfund.org/public/uploads/files/cms_files/85677083762.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfd92f67d57---78343447602.pdf
- http://qualityfirstservices.pro/testingsites/advantage_aviation/assets/media/file/9068279766.pdf
- http://biometria.pl/photos_fck/file/pifalajemipixifuzugisural.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c561a3322---13159553976.pdf
- https://bodymart.in/ckfinder/userfiles/files/68493500076.pdf
- https://euroroma-bg.org/files/file/92913402652.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d88fbcec4f8---48615977027.pdf
- http://labonscafe.com/userfiles/gazijizezesono.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/rf4m2n6gitlb3qp2ieocm39ti7/53767822689.pdf
- http://mobilni-kadernictvi.cz/files/file/41854834129.pdf
- http://mixmarketing.vn/upload/fck/file/14823069550.pdf
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/qujf0633p14974edko36s2q29q/12783163797.pdf
- http://ambulatorioveterinarioscapindandrea.it/userfiles/files/felixano.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082d0982a9f3---57621436369.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/c9847d11157d3ff5322c3e6fc1b0246a/zugederopowimu.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=present+perfect+past+simple+exercises+b1+pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d91f.bin6424541398156417861b06fb690dca8e3f5980a573546653e410ee8014ec1833 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD91F | 10956 bytes |
font_01_sfnt_off0000f257.bin53d7fffe0d55f6cbd51d3f7b59fbe45f8fe594d3e808054bb34a8763426ac632 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF257 | 18036 bytes |
font_02_sfnt_off00012117.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12117 | 16792 bytes |
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