MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, with numerous URLs pointing to compromised WordPress sites, suggesting it's used to redirect users to malicious content. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this attack pattern.
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://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/796dqc0d6nrcut65hu2unvk72f/vunamorisi.pdf
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c06eeba76c---miworuvodudavab.pdf
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/e4688e9a0ec4cebcc160002d1ffcca4e/jejaxadiruzisopepepemuro.pdf
- http://grodgolf.com/clients/f/fd/fd83fa7079552abb47853a85229f74c1/File/xagatofigirojo.pdf
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef42cccb14---rowiwanubirerixularo.pdf
- http://mt-filtration.com/uploaded/file/117203055360d799896444c.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/f1e6cf1720afe148cdc22304aa7dbdfe/60599103851.pdf
- http://zabradli-znerezu.cz/userfiles/file/76667899804.pdf
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/0lf4kn0qnsvsdeih2vhabcbgmc/66500586233.pdf
- http://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608c553b8ad67---91339848354.pdf
- http://chongros.com/userData/board/file/xusameguzi.pdf
- https://bandai-k.com/userfiles/file/neribule.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/709e7cd32446ec22969a4d6765cb5da2/90297173478.pdf
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ad5e5a618---40216360941.pdf
- http://2ds-creations.fr/userfiles/file/rusujumapopax.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbc096e7ed---wuzalilakumozod.pdf
- https://actor-conseil.com/files/file/14443215043.pdf
- https://edarky.net/data/file/ganimixumugusakoxetus.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a320acc9---remiw.pdf
- http://security-m.jp/tool/images/file/detewaneni.pdf
- https://elsadaulte.com/ckfinder/userfiles/files/xonuzeniwefapova.pdf
- http://msslink.ru/userfiles/files/lukufumekowikinajipomekat.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=save+excel+as+jpeg
- 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_off0000ebc6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBC6 | 16792 bytes |
font_01_sfnt_off000103d8.bin271302552decfffef51381e23c24f3e62bd0a415f06ac3d79128bdde46fff059 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103D8 | 17824 bytes |
font_02_sfnt_off0001317b.binc3f81358b0ac1b0fd85479d23eb8035905fe5644db065ed8e5990a2bdfdb6770 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1317B | 10408 bytes |
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