MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The PDF contains numerous embedded URLs pointing to compromised WordPress sites, indicating a link farm designed to distribute malicious content. While no scripts were explicitly extracted, the nature of the embedded URLs and the 'link farm' heuristics suggest a potential for JavaScript execution or redirection to further malicious stages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c071738eb0a---burunugejub.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/16073c5e4d96dc---benilixison.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac7d5fae381---13481970537.pdf
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/ea4d6b947bd0777821af5bc41c42bdf9/79892586086.pdf
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/mtr3vdmdfu05i5a5e9a53jqhal/vexor.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/2sq5ucpk3dacq26jsnfqeelva4/57948556009.pdf
- http://www.themixchange.com/userfiles/files/43059135430.pdf
- http://gagutp.com/sa_upload/userfiles/file/20210619010846.pdf
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607934a0537c8---sunasanojimejapu.pdf
- https://allcreaturesinc.com/files/files/85612804290.pdf
- https://morethancleaningservices.com/wp-content/plugins/super-forms/uploads/php/files/88b583e19894e385f859d71f7656fa77/6532128585.pdf
- https://orldoc.ch/wp-content/plugins/super-forms/uploads/php/files/nqd2r39h9abtjna32qvstcfe11/wunusivokedefuraxebemova.pdf
- http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/160771de8d2241---xezasofexuwuvufamedol.pdf
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089608431f07---julevoferenuvumov.pdf
- https://akapacha.com/userfiles/file/94752013435.pdf
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ccfd63aedbb---94717013494.pdf
- http://aaaexpressheating.com/userfiles/file/45225916802.pdf
- http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a49bd9e2cfc---85489883911.pdf
- http://laduses.nl/image/file/58547128541.pdf
- https://starbox.fr/img/files/75241500901.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/ff6d993ad878278cc9bd6fcc5e9d0d0c/27600896708.pdf
- https://janeunchained.com/wp-content/plugins/super-forms/uploads/php/files/f78b043bgmb7k2tonb3fvpkn3b/66483555432.pdf
- https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/5eb0165fb5752c0a43de301a1fc1d583/43920362168.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=keith+whitley+let+it+be+me
- 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_off0000e032.binaeaa21deb04b818fa1ddfdbc56acde75730d5469af514c57f9740c21e3fd7f16 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE032 | 17460 bytes |
font_01_sfnt_off00010d6e.bin891c2be9fcb4999256e378bd9af13f3dc85dec7019336e5eb2a3e7bebf2e7c22 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D6E | 10052 bytes |
font_02_sfnt_off000123ca.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123CA | 16792 bytes |
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