MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to distribute malicious content or phish users. The presence of external URIs and a high ML score supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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 https://avenue102.com/uploads/file/98770709826.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/fl6i83biprf5qura022u4t0mo6/89367397159.pdf
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090d54ce3deb---tajisiw.pdf
- http://anhuizhkj.com/upload_fck/file/2021-4-30/20210430132552850475.pdf
- http://www.conectadoscomdeus.tv/arquivos/file/dumedubudajijabi.pdf
- https://www.escon.it/wp-content/plugins/super-forms/uploads/php/files/8cabecdfb36080f539b5c4dd0df1b01c/93777918441.pdf
- http://servmed.net/userfiles/file/sebubezimovuwozojijepi.pdf
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9978d4e30---wogugitagurifepinozobaw.pdf
- http://berbun.com/user_img/file/91728789437.pdf
- https://hgb.se/filer/file/funolepinovobude.pdf
- https://noithatkuongthinh.com/uploads/files/63768678361.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/4c4d7f2766410dd56dc92f7c69e079bb/18825472257.pdf
- https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/32404818a21f0a50f157f873671029d1/kogumipubokowesev.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c6363807e---xufokumarovegibanigapa.pdf
- http://musorcentrum.hu/files/article/file/7343208791.pdf
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608146678d461---rovadefasamaxeberofoj.pdf
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/169653284af3ce0eb185378bd0125c0d/konojid.pdf
- https://eurocomm-italia.com/file/vigujulesedupasomadada.pdf
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/k4adrg7h4351dp74lhj6uov299/bamibatumit.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1609074aba92ab---pumererekalepebinitasol.pdf
- https://www.adler-leitishofen.de/wp-content/plugins/formcraft/file-upload/server/content/files/16078b576a0a1e---92799351331.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1609fff28bbaec---66533738249.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=love+with+heart+and+soul
- 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_off0000f0e9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0E9 | 16792 bytes |
font_01_sfnt_off00010900.bin03e0ae8e03079c7837c435f1299749af72871178e5e33704beb527e73c53958d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10900 | 10552 bytes |
font_02_sfnt_off0001210a.bin6f4709b53eb409babf4bb78c14eb733c2933aff4942807f1158f6b7437c385b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1210A | 17316 bytes |
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