MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains numerous embedded URLs, many of which point to compromised or disposable hosting, indicating a link farm designed to lure users to malicious sites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery. The presence of multiple PDF-specific heuristics related to URI and link farms supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://firsatoyun.com/calisma2/files/uploads/33410385263.pdf In PDF document text
- https://cuatudongbinhduong.net/uploads/files/nobolem.pdfIn PDF document text
- https://forthepeoplegov.com/userfiles/file/22465233293.pdfIn PDF document text
- http://sensor4you.com/fckeditor/editor/filemanager/connectors/php/fckeditor/upload/202108/file/45173589459.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/8mmuqqpl57odb5mfq0v17mnnjh/81986384859.pdfIn PDF document text
- http://yuha.be/_files/file/solazinujasuwigezikatazi.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160aafdc5a36b3---68722626987.pdfIn PDF document text
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c850f9002e2---polaximagiwolesosiji.pdfIn PDF document text
- https://adasms.fr/userfiles/file/nibarugesajemapu.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/1s1ci4ijeanqvd0qgr585558u8/61755269085.pdfIn PDF document text
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/fc5ec99c63500eaad37fc94b77d0abf3/siliroguxanupodaxumuzo.pdfIn PDF document text
- http://cesishotel.com/res/wysiwyg/file/85328790699.pdfIn PDF document text
- http://dabaizhongxue.com/upload_fck/file/2021-8-6/20210806080120682853.pdfIn PDF document text
- http://centromedicoveterinarioadda.com/userfiles/files/wapinovusobusovawejinad.pdfIn PDF document text
- http://prestopc.it/upload/file/saruvulegugosogulitefusok.pdfIn PDF document text
- https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/e5e916b7248624d137795cd7ff8fbaf9/zusizutowufijivevu.pdfIn PDF document text
- http://paradisoseminatrici.it/userfiles/files/63880734345.pdfIn PDF document text
- https://daotaolaixesontay.com/uploads/file/vakovulesisirunabodaw.pdfIn PDF document text
- https://dmitrovka-zn.ru/admin/ckfinder/userfiles/files/99702469904.pdfIn PDF document text
- http://cathayred-csr.com/img-cathay/files/lowufemibukupobekaxiraj.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=how+do+i+manually+change+page+numbers+in+wordPDF 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_off0000df9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9D | 11292 bytes |
SHA-256: 1c2f4fcd1895b1e417907acdd24888a48b920522e4f30ecf9ee3717c2bdf1e23 |
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font_01_sfnt_off0000f97b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF97B | 18560 bytes |
SHA-256: 090b7b6e7b768c3bc130d5d0e4c0dbb5b266f6acf5cd7913ff5e35405f86a9da |
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font_02_sfnt_off000128b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x128B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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