MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, with heuristics indicating it's a link farm pointing to compromised CMS upload storage. The 'SE_CALLBACK_LURE' heuristic strongly suggests the document is designed to trick users into calling a phone number, a common tactic in phishing and tech-support scams. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it may leverage embedded JavaScript for malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 7
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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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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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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://math-talk.kr/wp-content/plugins/super-forms/uploads/php/files/e46e78dd2ca3cine04oo4ih07p/rugipuparilegojex.pdf
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/1b6acfcc27217c057d5c6d2e8e779278/labiwerebinufos.pdf
- https://108pizza.pl/uploads/userfiles/files/75846614487.pdf
- https://www.deuba.info/wp-content/plugins/super-forms/uploads/php/files/ctlo1t84t5ss2nsfrmjaslj6sn/fejotepenibibired.pdf
- https://doellefjelde-mussemarked.dk/images/newsmail/file/45425291012.pdf
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca9108d548---najedovexisukinolizur.pdf
- http://csptech.net/admin/userfiles/file/zuxadededutudomavepomejin.pdf
- http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/530725c13b85855a5d23c167d42d2757/76734852665.pdf
- http://lorichphoto.com/pictures/file/58938570771.pdf
- https://fa-vietnam.com/webroot/img/files/pijojunikiwuxafuged.pdf
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/65fdec81c2a54d59bfb821557517bb57/22202201007.pdf
- https://realwebguys.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f4e6d4c09d---3473132167.pdf
- http://www.barankayalar.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c4047e1d40f---gijex.pdf
- https://handientu.vn/userfiles/file/renurepinoluvikuni.pdf
- https://gberwanda.com/gbe/useruploads/blogs/files/80875179945.pdf
- https://atlastoursntravels.com/userfiles/file/4276878322.pdf
- http://rhondadejean.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wagafodoxewipugorix.pdf
- http://alpha-cp.com/userfiles/file/vuzizewitigurovidilitoxe.pdf
- https://www.cibaospalaser.com/wp-content/plugins/super-forms/uploads/php/files/hth1niulgatdh32ecn0f0j6gvl/9424458332.pdf
- http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/55140412357.pdf
- http://fitviewer.de/files/file/59085104810.pdf
- https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/dae392db43317c114cbafd8d4e9a767a/47910470701.pdf
- https://tylbm.com/Upload/ckeditor/files/komovenivawolozuzapirevi.pdf
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/17e3713bd691208eade1dd67ea1a7d07/kuxanavovopamumunumelodil.pdf
- http://legendtec-eg.com/wp-content/plugins/super-forms/uploads/php/files/0n0fv494tlukqp19jrn6s9hme4/7990963581.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BkSY9tpko7c/uplcv?utm_term=verizon+fios+tv+user+manual
- https://www.unimedbelem.com.br/painel_template/assets/global/plugins/ckfinder/userfilesfiles/21524985310.pdf
- 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_off0000e8ec.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8EC | 16792 bytes |
font_01_sfnt_off000100fe.bin02213eeccc66481154783cc79620fde863dd9bbee1cf2c76a44765c580075775 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100FE | 16880 bytes |
font_02_sfnt_off00012d18.bindbe530d675c31b82776049759878b0c93528d49899881d616b4c5dc36d874ce3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D18 | 10568 bytes |
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