MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan payload. It contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of JavaScript indicates an attempt to execute code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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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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://www.tamilsaga.com/ckfinder/userfiles/files/sorarusedazuzan.pdf
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab06930096---74484388718.pdf
- https://www.audioclinica.pt/wp-content/plugins/super-forms/uploads/php/files/43ae2rccrqs4mt3a847r912q83/29288219986.pdf
- https://www.fishhabitatnetwork.com.au/application/third_party/ckfinder/userfiles/files/fegewesorawev.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160ca04b38f992---31958183257.pdf
- http://ibb-online.ru/f/file/bikododiwejutiwagu.pdf
- http://jjw-led.com/userfiles/file/lonuzuwuxativonemixezone.pdf
- https://oteaexpert.fr/cite_imgs/file/85446756013.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/84n7b3p9uaubi2kep3nt3on7lk/93649645415.pdf
- https://pmms-online.com/assets/file/23432586038.pdf
- http://alexandraharris.com/clients/36054/File/vafakasujonimuxatagumumax.pdf
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160792a782737b---8731843379.pdf
- https://luminex.pl/upload/file/ruwokeviruwewazugavan.pdf
- http://ecohost.ru/pics/images/file/ruxoga.pdf
- http://teknis.it/userfiles/files/52644007563.pdf
- https://digireg.dk/upload/zusobofimowotofenoveragi.pdf
- https://w4gw.com/file/76333559166.pdf
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/21050916205052165538jp67.pdf
- http://sammyuriasproperties.com/userfiles/files/metini.pdf
- http://niszczeniewaw.pl/userfiles/file/sevakakuvata.pdf
- http://mea-travel.pl/userfiles/file/24878334128.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=define+expected+utility+theory
- https://doi.org/10
- 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_off0000e5be.bine55ca644b073c3d9995c5b387e29c619b3bd2a444bea6e0750d60834ff40dcae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5BE | 17772 bytes |
font_01_sfnt_off000114b1.bin6a374ed98a6cf0934ce29f52b2c73150a0fedcd93c93574a3b2e7957484501a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x114B1 | 10704 bytes |
font_02_sfnt_off00012d34.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D34 | 16792 bytes |
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