MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. It contains numerous links pointing to compromised WordPress sites and other disposable hosting, which in turn host more PDF files. This suggests a campaign to distribute malicious content or phish users through a chain of compromised sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9840
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://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa189f965eb---patigeko.pdf In PDF document text
- http://georgekoldun.com/var/upload/file/5355670219.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/fue8b2c8u35l3d343lct51kh5b/36723682643.pdfIn PDF document text
- http://msamerica.net/clients/873634/File/36211283196.pdfIn PDF document text
- https://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/j51ct7c1jnm69rfdlmm8kn7lll/58625908027.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/379ncuhr8k5mssq25aoojgkm3i/fobexabu.pdfIn PDF document text
- http://www.gcsystem.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16086d9dadefd0---4075961062.pdfIn PDF document text
- https://tort-art.ru/userfiles/file/38292881987.pdfIn PDF document text
- https://wodepcb.cn/uploadfiles/files/61218949377.pdfIn PDF document text
- https://triptoboloyfoundation.org/editorsfiles/files/sojugimekagidibonofit.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/160c19baa5da96---dafawixefixuwoson.pdfIn PDF document text
- http://duszek-lasu.pl/userfiles/file/75968078511.pdfIn PDF document text
- https://rockoncharters.net/home/rock/public_html/ckfinder/userfiles/files/23754745795.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bab5c8cd5d6---85530286795.pdfIn PDF document text
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/8bbc6e4170b0c2deb3790d752dccef31/rujexe.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/lonokowojakef.pdfIn PDF document text
- http://anhuizpyy.com/upload_fck/file/2021-6-22/20210622174252784064.pdfIn PDF document text
- https://diversified-nj.com/wp-content/plugins/super-forms/uploads/php/files/72d337c2dbc69f594545886edd797387/gelumomufibitupotewexipo.pdfIn PDF document text
- http://posekatzahradu.cz/files/file/23352382583.pdfIn PDF document text
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/1c37b814ad38e33459c7e1aad4f0fb1d/79584116798.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b76a87930---bimumovimasilobuv.pdfIn PDF document text
- http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609acaef08a08---93124076499.pdfIn PDF document text
- http://elsekmont.eu/userfiles/file/wozopitefilurunazu.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ab99df4a87a---sonudemepavolanawefuw.pdfIn PDF document text
- http://vitalenzyme.com/uploads/fckupload/file/93558816012.pdfIn PDF document text
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/93947aedeed9577fd4463424df821ae3/xibotivitafumexakok.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=themes+that+unify+biologyPDF 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_off0000ccbb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCBB | 10880 bytes |
SHA-256: bb886b432af0ccf32aaa7fb92b58e7816ac1f7d72aba25904248e1c9b449396a |
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font_01_sfnt_off0000e5bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5BB | 16272 bytes |
SHA-256: 1e50e25f5cf23cd74e4cbdcac47327b30f8fb4115cd1bef2033bed32eb1e89d0 |
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font_02_sfnt_off00010fa8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FA8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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