MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links pointing to websites that appear to be compromised CMS uploads. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm structure, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' confirms the nature of the hosting. ClamAV also detected this file as 'Pdf.Phishing.Trojan'. These factors suggest the document is designed to lead users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16077c16421542---95454813245.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b8aef97032d---76684855914.pdf
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/9plbtffcgm2k3o8plnm0cf73r9/dojureka.pdf
- http://abacusnancy.com/userfiles/file/wunosurunapubilites.pdf
- https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/6ae5df54d99f3a925c274a9808823e82/posidikuwigolofewukuka.pdf
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a76d868bb6c---salofapaberaginuvexilena.pdf
- http://unseenadventure.com/userfiles/file/ribuzuxopekoxuseb.pdf
- https://promobryansk.ru/userfiles/files/56181248562.pdf
- https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/1bef6513295e6eabe031d4ac3e094158/56556142620.pdf
- https://trichynext.com/wp-content/plugins/super-forms/uploads/php/files/672fbac18162cb663745f118c1056847/52029816559.pdf
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160da4396d7294---90078180443.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/i0cthufhv3hvvj2q06frb340a0/92695873033.pdf
- http://abbwingslynnhaven.com/uploads/files/84792563240.pdf
- http://blog.crowdly.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7b8941930d---foguvifibotitasizoku.pdf
- https://www.stamfordtaxis.com/wp-content/plugins/super-forms/uploads/php/files/atds2q7hrjr6dplrfb5qkiu5c9/vuguloripivatuxumop.pdf
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160884f0a7e907---50836883694.pdf
- https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/730baba66ce9a6c83f2af3074400752d/4024022046.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160ad932247a4e---42068609227.pdf
- https://www.vibrationmonitoring.asia/wp-content/plugins/formcraft/file-upload/server/content/files/1608cffd0ec72d---19326704494.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbccf7b0e11---53144465664.pdf
- http://www.predoisiasociatii.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef727a5109---62636637541.pdf
- https://carea2plus.com/wp-content/plugins/super-forms/uploads/php/files/f10af305153d8c022e5a387011923195/xaxotabefogerisotaxokapan.pdf
- http://asbazainville.org/userfiles/file/42209580805.pdf
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/1a012fcd2fb3b66627cc87fb3a011b33/tovinoxusegabiperejudoxa.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=free+ielts+reading+practice+test+academic+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_off0000f9c8.bin9d52e8e2a70cbc1f79aabb586233194b77fb20b2b5439e30e77b8a4903f30a1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9C8 | 17052 bytes |
font_01_sfnt_off0001263e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1263E | 16792 bytes |
font_02_sfnt_off00013e55.binc562996d798dfe7089b22dc98dc766375e1bd88baf6236be90085f0bdd2e9a52 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E55 | 10820 bytes |
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