MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by an ML classifier. Static analysis revealed it functions as a link farm, containing numerous URLs pointing to compromised WordPress sites. These links are likely used to distribute further malicious content or for SEO poisoning, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb053e644f---27439292198.pdf
- https://elnativocoffee.com/silver/upload/files/zulefasimojiweti.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160993f73a9c8a---kodagiwaxevobakadaj.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16080998117693---3393395029.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1608d93a68676e---2852145164.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/dace8d3eede61707d0d2cacd99ea7bc7/favewedu.pdf
- https://eqonetech.com/upload/userfiles/files/6070441708.pdf
- http://amazingindiaphotos.com/amazingindiaphotos//upload/fckimage/file/73665904802.pdf
- https://www.accidentinjuryalbuquerque.com/wp-content/plugins/super-forms/uploads/php/files/3pg76ifpn0k67gl7e7n1hcj08d/27532106380.pdf
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/4ec218ddc4dabc6df97413f7b85e7aac/fabutununax.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca716eaa4b---zafebasafe.pdf
- http://mispuntossaga.com/campannas/file/35820302948.pdf
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b0a0031b73---29950248706.pdf
- http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609058583a349---lavotufomudur.pdf
- https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/dvo8gqol7oibtffhagolnhov4g/xububij.pdf
- http://farmina.ru/uploads/files/32890609292.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5a1c4b8c4---84624801416.pdf
- http://wakingbeauty.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766f9c8124a---50903266473.pdf
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/ad08dcb38ee3df1580dde324ed58004a/10692936454.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c56e4db6333---15275404507.pdf
- https://adikkedua.com/contents//files/40829496636.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160995102eb01f---vurexiwizevutujoguziso.pdf
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/dbd3962a9f18b1b3ca4ea23dafbdb3b1/23119275337.pdf
- https://edusfera.pl/upload/file/wiledozafesawuzasokowanun.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=food+composition+table+philippines+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_off0000ebf1.binb96e6aa164dd4071fcc7efa27fc8538c1c9a067bab8eb3282cbe512280c8afbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBF1 | 17060 bytes |
font_01_sfnt_off00011894.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11894 | 16792 bytes |
font_02_sfnt_off000130ab.binb0156d9896de10ba5bace19f2ba961c080cd7269bff94bfc7bc85ea884ff74ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130AB | 10904 bytes |
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