MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Numerous heuristics indicate the PDF acts as a link farm, directing users to compromised WordPress uploads and disposable hosting sites. The embedded URLs suggest an attempt to redirect users to phishing or malware-hosting sites, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://krisoc.ru/uplcv?utm_term=high+angle+rescue+techniques+pdf PDF link annotation
- https://artinterior.bg/userfiles/file/bixuvusudokijodiripav.pdfIn PDF document text
- https://marksiegeldds.com/wp-content/plugins/super-forms/uploads/php/files/a0e04b17c4543c5fe2bca7a5c1968d34/96612912321.pdfIn PDF document text
- https://divetechmarine.com/contents/files/13624720124.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/160823b6e19d5b---68787064299.pdfIn PDF document text
- http://bisenzia.it/userfiles/files/zebodagudolegatilemirapuv.pdfIn PDF document text
- http://wonikqnc.com/upload/editor/file/1630131512.pdfIn PDF document text
- http://palakkadtourism.in/ckfinder/userfiles/files/70100465651.pdfIn PDF document text
- http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/160846cd383d45---liwazofadarajijexupuviw.pdfIn PDF document text
- https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/4fb67d884dcdfa71f44391b965cfa216/72545887018.pdfIn PDF document text
- http://vienkiemis.lt/app/webroot/uploads/userfiles/files/4453285329.pdfIn PDF document text
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/a43624df69fad05fe0c8700a99475438/13585087167.pdfIn PDF document text
- https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e10895a36e9---ronukuveverido.pdfIn PDF document text
- http://kath-kiga-bw.de/bilder/berichte/file/fulib.pdfIn PDF document text
- http://ahkjt.com/upfile/file/2896870600.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a810754ae5c---livirigovoxudajir.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a85b3c9c82e---vopajeparunawizaputixa.pdfIn PDF document text
- http://thermogroup.ru/uploads/files/wipedugebovaxinatiguraz.pdfIn PDF document text
- https://nibrasimansch.com/userfiles/files/baxadorenadixaxob.pdfIn PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/54p53b7polan9a50udbl4ejqo6/wuwazaj.pdfIn PDF document text
- https://indianpowerliftingfederation.com/userfiles/file/gosatumirilazadago.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/160868ed738811---6513461991.pdfIn PDF document text
- http://yuhao-tech.com/userfiles/file/nekalubotulonesodokir.pdfIn PDF document text
- http://montaze.org/democms/userfiles/file/53656770881.pdfIn PDF document text
- https://sofupingame.com/calisma2/files/uploads/15876769536.pdfIn PDF document text
- 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_off0000e70c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE70C | 11016 bytes |
SHA-256: 640fc20eb8b39e589cb1fcc88d8adddbaecb1f6af7aaeba834edaf2b1a049803 |
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font_01_sfnt_off00010002.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10002 | 18972 bytes |
SHA-256: 0e76ec7dc413409625c8cdc5236d822b49c3a02efe8aa9750e459d64d3811b8e |
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font_02_sfnt_off00013176.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13176 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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