MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs, while numerous, are the primary indicators of the attack's nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://xn--h1agcmh.com/ckfinder/userfiles/files/xopotuxodire.pdf In PDF document text
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138bbe35cb8c---35367354325.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/8410b79f6f0948fdc3076f4fd46e93da/febofuwax.pdfIn PDF document text
- https://bimore.vn/webroot/img/files/9637559971.pdfIn PDF document text
- http://glampingcaravan.com/userfiles/file/20210907001855.pdfIn PDF document text
- https://aodaixuan.vn/app/webroot/upload/image/files/39610429377.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/161352eedebe49---wemebubugusune.pdfIn PDF document text
- https://valserve.in/web/k/main_admin/ckfinder/userfiles/files/82948480615.pdfIn PDF document text
- http://ceomit.com/fckupload/file/nijupoxi.pdfIn PDF document text
- http://exclusivelimoservice.com/ckfinder/userfiles/files/nigakavel.pdfIn PDF document text
- http://mkpstroitel.ru/upload/files/16566720764.pdfIn PDF document text
- https://lorenzonimmigrationlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e05ee0935---puduxajo.pdfIn PDF document text
- https://rrr71.ru/upload_picture/74335375090.pdfIn PDF document text
- http://qdjshg.com/files/file/balikikesedamavatoxu.pdfIn PDF document text
- http://neboskreb-irk.ru/uploads/userfiles/files/lopaxiwejutowulim.pdfIn PDF document text
- http://chiangmai-esc.net/user_img/files/9734017976.pdfIn PDF document text
- http://aroma-es.red/yamituki-n/uploads/files/13535198469.pdfIn PDF document text
- https://kidneystonetreatment.in/userfiles/files/vomel.pdfIn PDF document text
- http://asirakademi.com/resimler/files/88921613241.pdfIn PDF document text
- https://nguyenthelong.net/userfiles/files/60388837468.pdfIn PDF document text
- https://tapetcenter.ro/app/webroot/files/userfiles/files/julexifux.pdfIn PDF document text
- http://polaryachts.com/res/wysiwyg/file/vuxosotafimotogopa.pdfIn PDF document text
- https://vidaleve.ind.br/ckfinder/userfiles/files/fikozarubidu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=phone+storage+cleanerPDF link annotation
- 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_off0000bcff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBCFF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d511.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD511 | 17512 bytes |
SHA-256: e4269e9648ce1dce4f07542c6e354d0dbe3d2e130d98f33ebe5872b8695e35d9 |
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font_02_sfnt_off00010222.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10222 | 10420 bytes |
SHA-256: 991fed20c1f0b76ac91f3809a9533225b22720aa1e55e0868483b31d66e6953a |
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