MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to potentially compromised or disposable hosting sites, indicative of a phishing or scam campaign. The 'SE_CALLBACK_LURE' heuristic specifically points to a callback phishing or tech-support scam pattern, where the document likely prompts the user to call a malicious phone number. The ML classifier and ClamAV detection further support the malicious nature of this file.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 8
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://taketty.xyz/js/ckfinder/userfiles/files/sotifozutiro.pdf
- http://ototavandosemesi.com/resimler/file/56579285348.pdf
- http://absolutelyneon.com/userfiles/file/5122808343.pdf
- https://auto826.vnpec.xyz/uploads/files/dalolaxejapipaxa.pdf
- https://pmcp-avac.com/files/upload-ckfinder/files/nojuwadinokaxet.pdf
- http://xingzhongjing.com/userfiles/file/20210922142849_3955105.pdf
- https://uppersanduskyrotary.com/cms/files/File/4744743068.pdf
- http://iwayman.com/uploadfiles/file/2109061320053779058tnfm3.pdf
- https://fuoriscena.eu/file/minifubivivezaxibilika.pdf
- http://chineseclothingonline.net/File/85855664401.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613930489292c---61053343915.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/161512d4855f61---fusefobuxezexezeboz.pdf
- http://drivingschool-brno.eu/files/xukufijuniwalejibekit.pdf
- http://www.gonouvellezelande.com/files/rurisi.pdf
- https://washlounge.in/ckfinder/userfiles/files/2211154165.pdf
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/60963135382.pdf
- http://aggengr.com/uploads/CMS/file/xomobinema.pdf
- https://greenfuturevietnam.com/Upload/files/tibofezipunaziroz.pdf
- http://akekaluck.com/ckfinder/userfiles/files/wabuxivegesenimedekowa.pdf
- http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/07332792096df1b5228ebc75ed93971d/kovemetunabesoxebinusu.pdf
- https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1614bd486a5bec---befuvorodadedip.pdf
- http://em-ail.ch/pictures/2/52296695495.pdf
- http://huthamcauquanggiap.com/upload/files/34924791003.pdf
- http://www.eurosecurimed.com/ckfinder/userfiles/files/beluzisapikuxo.pdf
- http://stin-verdon.fr/assets/Image/files/47876262152.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=what+is+api+level+in+android
- 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_off0000b443.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB443 | 16792 bytes |
font_01_sfnt_off0000cc5a.binfcf425183aaf7d41ce16a13ff08b8926f538d1d151df091088879c29c2d4e8e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCC5A | 10548 bytes |
font_02_sfnt_off0000e458.bin0bd6fd8338d2d9986c5f210d8e447fe273833e1e6632f860827c10b136fec582 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE458 | 15616 bytes |
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