MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV. It contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users. The presence of these links suggests an attempt to lure victims to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://mai-colle.jp/userfiles/file/mofodedigepagugewovifeto.pdf In PDF document text
- https://pnvvr.ro/userfiles/file/19389671284.pdfIn PDF document text
- http://elfobchod.cz/foto/Image/file/41722790396.pdfIn PDF document text
- https://visaonline-vn.com/wp-content/plugins/super-forms/uploads/php/files/hh88qpia0ui2192h8vk3akk5k1/waviwonaripajotituselob.pdfIn PDF document text
- https://jills.reviewz.eu/app/webroot/files/userfiles/files/tewemenepudebagebob.pdfIn PDF document text
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613a1a9d815fe---tewajujul.pdfIn PDF document text
- https://etest.vn/app/webroot/uploads/files/96424455536.pdfIn PDF document text
- http://agrocare.hu/ckfinder/userfiles/files/3015460438.pdfIn PDF document text
- https://eko-briketes.lv/userfiles/files/pixizuje.pdfIn PDF document text
- https://godahoian.com/app/webroot/upload/files/xurakidubebitijopiwunugot.pdfIn PDF document text
- http://gotween.com/userfiles/file///28792100357.pdfIn PDF document text
- https://www.techsrollout.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137e5c985b66---galek.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/savojapodoranaradafatifeg.pdfIn PDF document text
- http://status.cz/UserFiles/File/folawodamoforu.pdfIn PDF document text
- http://kepco-group.com/uploaded_files/userfiles/files/jadasavat.pdfIn PDF document text
- http://balalajka.nu/media/16958000302.pdfIn PDF document text
- http://terwaarde.be/ckfinder/userfiles/files/kuwejerofigafuwodewuvu.pdfIn PDF document text
- https://iva-vietnam.com/userfiles/file/7714476796.pdfIn PDF document text
- http://fandimnarodaku.cz/upload/file/nijibopela.pdfIn PDF document text
- https://paardenwelzijnscheck.nl/app/webroot/files/ckeditor_files/files/xetutiv.pdfIn PDF document text
- https://mtmhomeschool4art.com/mycms/uploadedimages/editorUploadedImages/file/suzam.pdfIn PDF document text
- https://valve-toho.com/userfiles/file/vunepopax.pdfIn PDF document text
- http://moneymaker-gold.de/files/xuzuvalabimunatefuvisudin.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=serial+photoshop+cc+2015PDF 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_off0000e511.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE511 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fd28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD28 | 10872 bytes |
SHA-256: b2bb84726410ae794623dad5fdac806855845cb6f5866ee28443a37c8f11bc12 |
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font_02_sfnt_off0001167c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1167C | 17996 bytes |
SHA-256: 629a676e4eb8ccba509ff68779034d9b91dc069a0e260255e49a12b1c4b0bf54 |
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