MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm, with several URLs pointing to compromised CMS uploads and disposable hosting. The embedded URLs suggest an attempt to redirect users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://p-jtech.com/userData/board/file/73094497378.pdf
- http://www.naraihillgolf.com/admin/userfiles/file/vewolirabonar.pdf
- https://toocapen.com/files/89544227057.pdf
- http://www.ez4parcel.net/upfile/files/2021/09/12/33900559061.pdf
- http://jrmhandling.nl/upload/file/bukiruli.pdf
- http://ctm.it/userfiles/file/kirixodagiropudibura.pdf
- https://martan.es/cenavarra_userfiles/files/17094001202.pdf
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132beb73fe4a---jagudalexutidusabibov.pdf
- http://novelinternationalschool.com/ckfinder/userfiles/files/jowemivusewunuvev.pdf
- http://022-web.cn/uploadfile/file/20210906170259388.pdf
- http://gaushalango.com/uploaded_files/userfiles/files/6742306773.pdf
- https://ip-kamera-rendszer.nuttydog.hu/ckfinder/userfiles/files/tonukidisorigexid.pdf
- http://caogenzhiben.com/filespath/files/20210907092935.pdf
- http://massiimo.com/piceditor/file/44923220434.pdf
- http://hardiebase.com/uploads/assets/filefile/26750400841.pdf
- https://impulsa.mantareys.net/uploads/plantillas/files/kejununufebejebitu.pdf
- http://nomayaku.com/userfiles/file/35407612019.pdf
- http://businessvaluationapp.com/fck_files/file/95522083153.pdf
- http://caogenzhiben.com/filespath/files/20210904075153.pdf
- http://warehousetraining.ie/images/gutoposadipefapef.pdf
- https://jmtours.co/aym_image/files/womaravudadewatogemi.pdf
- http://na-bytecek.cz/UserFiles/File/judonewe.pdf
- https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/5df943cba5804272a90411dd0ad4569c/gonub.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161302d5e188f7---13377495154.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=best+of+five+apk
- 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_off0000bd23.bind33aa20880f85d9cac0f48124bbcf80969e8dca148240ece5740cac84a736105 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD23 | 18068 bytes |
font_01_sfnt_off0000eb88.bin22da2c53f321a87d1ba40206d5c17c9965b90e94729354eaf16070fe5a4a75d5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB88 | 10312 bytes |
font_02_sfnt_off00010310.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10310 | 16792 bytes |
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