MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous embedded URLs pointing to various domains, many of which appear to be compromised WordPress sites or disposable hosting. These links likely serve as a link farm to direct users to malicious content, potentially for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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 https://infrive.ru/uplcv?utm_term=online+india+australia+live+match PDF link annotation
- http://gyuco.com/uploadfile/files/20210914_092506.pdfIn PDF document text
- http://saothienemb.com/uploads/images/files/43530066472.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/217d8682e580c34877d7b961f60673ea/81696437855.pdfIn PDF document text
- http://cp-tournament.org/ckfinder/userfiles/files/46370851647.pdfIn PDF document text
- http://asu.com.vn/wp-content/plugins/super-forms/uploads/php/files/8iu9fgd253t3jalm06c1t8g02r/24120948154.pdfIn PDF document text
- https://dacola.com/upload/files/vurebanazosabumazajuged.pdfIn PDF document text
- http://wxbeimei.cn/upload/ckimg/files/202109121649091134.pdfIn PDF document text
- http://xn--ob0bjxt9h99icicrvkksa421cwwp7hiv4d6a.com/ckfinder/userfiles/files/sijaneb.pdfIn PDF document text
- https://lordoptika.hu/files/files/57785602213.pdfIn PDF document text
- https://girisimhaber.com/uploads/file/xunuwiremagotig.pdfIn PDF document text
- https://hotelgaric.com/upload/datoteke/madojizesisopakamutomotib.pdfIn PDF document text
- http://intertexmedical.com/userfiles/files/rosabotisepezopis.pdfIn PDF document text
- http://atlantichomeportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142562cbe118---vokofojijosomiwajo.pdfIn PDF document text
- https://ghnservizi.com/file/58672367097.pdfIn PDF document text
- http://madinaboys.com/easydo%20v2.00/files/uploads/vaxikotunobova.pdfIn PDF document text
- https://graveyards-fuj.ae/userfiles/files/30062719038.pdfIn PDF document text
- http://www.elstar.ru/uploads/files/bojigatarevuriliwapofebuv.pdfIn PDF document text
- http://refpecsbelvaros.hu/kepek/files/sugigupam.pdfIn PDF document text
- http://seasonmediagroup.com/pic/file/97917788954.pdfIn PDF document text
- http://tornyanggrace.com/upload/file/85138161728.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d247.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD247 | 17660 bytes |
SHA-256: 87e01f6745b3cce2248e8f416f607ac226ac9f2ec499d4d5787e9a2a365132e4 |
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font_01_sfnt_off00010088.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10088 | 10704 bytes |
SHA-256: d4af434a5a814333623d54d089477f8e29c66fba48af1fe1a32d6ee928616f0f |
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font_02_sfnt_off000118fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118FD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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