MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a phishing or malware distribution scheme. The presence of a 'download button' heuristic further supports the intent to trick users into downloading a payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://lastcallslc.com/wp-content/plugins/super-forms/uploads/php/files/db9eb77bb2bf8c14921edd2789375246/76582078350.pdf
- http://alnoorcity.com/userfiles/file/jozepegadatomusugajenaz.pdf
- http://chunmianxian.com/upfolder/e/files/20210714104435.pdf
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160e6c1dee62f5---35165642529.pdf
- https://www.alapan.org/fckimages/file/mukulup.pdf
- https://feldmann-spedition.de/pics/userfiles/file/xumolorufatibax.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/97966as0umtb7sr68fidkfjd00/kejesef.pdf
- http://rolmech-strzelno.pl/Upload/file/mijosagafesovev.pdf
- http://hani-bee.com/userfiles/files/juranasoturuvudifiburuti.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160c0e8b93af2a---80488530356.pdf
- http://sanitaerprofi.ch/fckeditor/editor/images/file/nevudipupunivipuxe.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160942efa547f8---kutipomujelibiwi.pdf
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/bb4vracvbedmank2h5vmgmt3m4/61617034629.pdf
- https://gservicepz.com/wp-content/plugins/super-forms/uploads/php/files/65210ad80eeee728f536b498d32c91e8/21628725927.pdf
- https://doanhnghiepvietnam.org/img_duhoc/files/39713051662.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/16d0cddd0e019123839c4fcf693892ca/5046886118.pdf
- http://sdds.be/userfiles/file/14500141600.pdf
- http://nuraski.pl/wsg/userfiles/vazasoxotese.pdf
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba8428a5001---78277911477.pdf
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609ac7d750c7b---44228592973.pdf
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd8e711279a---fexowekiduxi.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c5b9fd65004---biwuge.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+add+a+voice+changer+to+zoom
- 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_off00010022.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10022 | 16792 bytes |
font_01_sfnt_off00011834.binca53f61461df82e1af2745ecc073aba51a4cd194bdb7ae3278904af9d9a3f735 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11834 | 16644 bytes |
font_02_sfnt_off00014374.bin691c2bf1c4dc79105fd9eedf5fa644537860e62838a647ade2a7c69725e256f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14374 | 10808 bytes |
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