MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites. The ML classifier strongly indicated maliciousness, and the heuristic firings suggest this is a link farm designed to direct users to potentially harmful content. No scripts were extracted, limiting the analysis of direct execution capabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
Heuristics 5
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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 https://pistant.ru/uplcv?utm_term=gate+2014+question+paper+with+solution
- http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607b325aeb6ce---45357348736.pdf
- https://soba05.org/wp-content/plugins/super-forms/uploads/php/files/882300c20ccf824c7c63ef4a4edf6c2a/veginonagitewixoxuligijag.pdf
- http://zuche0551.com/upload/file/10757286058.pdf
- https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9698861da7---dujozupim.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b74e3eec72f---xufewit.pdf
- http://kapelski.pl/userfiles/file/dipaxudimekadowizaga.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160a276651e635---vevaluboduxulikutegul.pdf
- https://khanikango.in/file/xuvobifuwimuro.pdf
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16079a35b63291---1553808035.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a602a1bca1f---zuzemal.pdf
- https://safrano.pl/userfiles/file/45531749938.pdf
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609745bfa6f29---33972736344.pdf
- https://bettenbaehren.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a091b5521b1---gixijulexufufomav.pdf
- http://dentherapia.hu/files/file/nosifuropo.pdf
- https://pankalconstructora.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acfb88b3aa2---tusesobanogatebidufuf.pdf
- https://londonvipchauffeur.co.uk/wp-content/plugins/super-forms/uploads/php/files/84ba4d1e4f51c61db7f386c716d33011/50628236673.pdf
- https://bem-sa.com/img/file/fadav.pdf
- http://waukeganeast1980.com/clients/877304/File/24112714192.pdf
- https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/2c3cf2683df7decc1f271302b28cdb96/97512273921.pdf
- http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090ff75d5e05---gafifijiwokukezupuvex.pdf
- https://pavaniautismschools.com/wp-content/plugins/super-forms/uploads/php/files/rqcf2qpose2r5242id6jg7km4t/20809538860.pdf
- https://efnnma.org/files/file/21472475415.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_off0000d9fc.bind64d50c8afe1bd9e00baf522457623687affe10903af01f65c1439dcd75b7a36 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9FC | 17152 bytes |
font_01_sfnt_off000106d3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106D3 | 16792 bytes |
font_02_sfnt_off00011eea.bin7ac96e34102775f2a13710378671fced3c671cadbc1fb7c5709edeaefad25c04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EEA | 11092 bytes |
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