MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as a phishing trojan. It contains embedded JavaScript and a large number of external links, many of which point to compromised or disposable hosting, indicating a phishing or malware distribution attempt. The embedded JavaScript likely facilitates the execution of malicious actions or redirects the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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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 https://oniceh.ru/uplcv?utm_term=the+sympathetic+and+parasympathetic+are+subdivisions+of+the
- http://antropolog.ru/userfiles/file/89221522406.pdf
- http://rheumatology.institute/upload/content/file/8529443488.pdf
- http://scarpatti.com/files/84643529101.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16153730292502---jejideromixikaw.pdf
- https://9ja-bet.com/userfiles/file/kegozuxufosi.pdf
- http://nanobubblevietnam.com/uploads/userfiles/file/kunumosurikukaxifipum.pdf
- http://anpo.vn/upload/files/rorimozara.pdf
- http://goodlack.cz/userfiles/file/soxagenalozu.pdf
- http://imailbox.nl/images/uploadedimages/file/45333843920.pdf
- http://all-vehicle.net/js/upload/files/28014887264.pdf
- http://stin-verdon.fr/assets/Image/files/9182854898.pdf
- http://kenshopvn.com/uploads/files/41240003311.pdf
- https://ivanamihic.com/files/wagam.pdf
- http://www.sarajevo-inn-grunewald.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614a1cc285261---95404073257.pdf
- https://parkerboat.hu/js/ckfinder/userfiles/files/faxipodidexododuxa.pdf
- https://actsonics.com/uploads/files/202109011947093228.pdf
- http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/46339018723.pdf
- http://gorod-r.com/userfiles/file/motasizas.pdf
- https://sport-jicin.cz/dokumenty/70937883057.pdf
- https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/20157b44791ab5cebba6cfef5479e9cd/tukovevigored.pdf
- http://datavincity.com/uploads/ckfinder/files/tanizakunuzigowe.pdf
- http://galaxyjewel.cn/uploadfile/files/89353197914.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/vjgenajhfb7okg8cfl8sav0bd4/45602460438.pdf
- http://rosesrealtyhomes.com/userfiles/files/nigolimaxuxuvuto.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_off0000b024.binec0e4d7c7ab93eeb8d2320a43577086322a293e9510d8b7b9c3004ce394d66c2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB024 | 15956 bytes |
font_01_sfnt_off0000d819.bin9d05b9f2e101f7a8ee082027c92fc4539b60b2271876d80d5cfc413c1bbfc1e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD819 | 11220 bytes |
font_02_sfnt_off0000f20c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF20C | 16792 bytes |
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