MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links, many pointing to websites hosted on compromised WordPress installations or disposable domains, indicating a link farm designed to distribute malicious content or phish users. ClamAV and ML classifiers also flagged this file as malicious, specifically as a phishing trojan. No scripts were extracted, but the structure and URL analysis strongly suggest a malicious intent to redirect users to harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://naoshima-habitant.com/58844271471.pdf
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608805095a58c---53328905220.pdf
- http://usaoxin.com/userfiles/2021-6/file/49092227574.pdf
- http://maremio.ru/admin/ckfinder/userfiles/files/pitamuferepilipujirogiv.pdf
- https://weilaimachinery.com/userfiles/files/70301543868.pdf
- http://anhuishangbiao.com/upload_fck/file/2021-5-6/20210506095337872475.pdf
- http://marthomaiticherukole.com/userfiles/file/jazigifipegev.pdf
- http://thaimassageboy.com/ckfinder/userfiles/files/mubaxufamile.pdf
- https://camping-du-lac-dijon.com/fichiers/79722614461.pdf
- https://cargotavio.ru/files/file/fuperototinanepif.pdf
- https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/rejbqnsu1b06lkoq609mqlj4j7/sivuxedifigewizerumiguw.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b826f87c88b---77618109882.pdf
- http://pi-consulting.ch/download/mumetuwewamowuxiso.pdf
- https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/6470c34880b2a81b56e6aa46d1a1b45b/xeramuxevinutekixizedakip.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d7a0cdd8aaa---31617857715.pdf
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/f02526475d578f415ffafe8ef6851022/94381509548.pdf
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/d4a057680b5b42cf3541bdd68c7627f9/limifekizabanubinetojuk.pdf
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abca5a6fc5c---ditawatixonusadibip.pdf
- http://sparan-art.ru/ckfinder/userfiles/files/malufazu.pdf
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b23a390ab53---70909762103.pdf
- http://pc75.net/upfiles/file/1624989247.pdf
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/n7g73o4j58me625iv7ikcpeqhe/pobubutubawikalumalo.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=hypothesis+testing+for+variance+and+standard+deviation
- 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_off0000fe09.binad24768b980a10df8ed26df88f6802129b2fdc7411f2c766854da4834b61343d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE09 | 18624 bytes |
font_01_sfnt_off00012fa4.bin6e6855ab3152dbd9fa3f7fd10167a51524e41facdec82d3cdb950ad3e8312d7c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FA4 | 11024 bytes |
font_02_sfnt_off00014918.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14918 | 16792 bytes |
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