MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection (Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0) and an ML classifier. It functions as a link farm, containing numerous URLs pointing to compromised CMS uploads and disposable hosting, suggesting an attempt to distribute phishing content or further malware. The presence of these links indicates a likely initial access vector via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://siahotel.com/userfiles/files/wewovi.pdf
- http://www.idenet.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607042d4549ce---bovutofopogifubol.pdf
- https://eminenceconstruction.ca/viking1/uploads/files/tagejizogewekogozetekune.pdf
- https://mtmhomeschool4art.com/mycms/uploadedimages/editorUploadedImages/file/90501163980.pdf
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/a89383b6f8d595d26155a2f53a3f259e/tutirubemonanajigiru.pdf
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d0001fcf3a5---fufewojukidudesixezoga.pdf
- http://claphamtaxi.com/survey/userfiles/files/najagovenawarateno.pdf
- http://spiregene.com/image/files/20210702_064225.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/sfaaumvnmtlva6eq2h96hltldb/65602684633.pdf
- https://cheesykeju.com/contents//files/powaj.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160831916a0510---48361844482.pdf
- https://www.hmgfinance.com/ckfinder/userfiles/files/76383938056.pdf
- http://xn--om2b25zm6igqb.com/ckupload/files/zexerubobifarif.pdf
- http://haustechnik-hagenauer.at/fedidabokerubovofopotole.pdf
- http://immobilieninvestors.com/userfiles/file/74317837161.pdf
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a740e91c1da---42363589220.pdf
- http://accronline.com/userfiles/file/napalozexesi.pdf
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/ac05cec6dc2dc191463676bf36a7aade/rojojixe.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b0b25d9ee9f---vovolijisogojot.pdf
- https://dejavuruse.com/userfiles/file/66976591895.pdf
- https://iphastkala.com/userfiles/file/28874291307.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086af81afc29---45750706728.pdf
- http://akpanlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/nisuzugugexeluwe.pdf
- https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/7e66804e763eb3c76998f500c623def8/59877368194.pdf
- https://kajariaadsevents.com/admin/uploads/file/tebaremabow.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=read+pdf+with+ocr+activity+will+throw+an+error+if
- 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_off0000c448.binb643acb06263bb1ff8c12ee430c53d7dae3a5f787d6093470ae9e8c240c0040d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC448 | 16960 bytes |
font_01_sfnt_off0000ef71.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF71 | 16792 bytes |
font_02_sfnt_off00010788.bineea550a0e7af30ec39dc21b55a0cfa258a748384adac73ca9c81327876f7d44f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10788 | 10860 bytes |
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