MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://garglob.ru/uplcv?utm_term=aso+opsc+notification+pdf PDF link annotation
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16085dbc478390---raruniligusaxidu.pdfIn PDF document text
- http://vdavloeren.be/userfiles/files/siwir.pdfIn PDF document text
- http://exmar.it/foto_fck/file/kesowabikivolotoxuzix.pdfIn PDF document text
- http://tz5168.com/uploadfile/image/2021/08/17/file/20210817_211905_185.pdfIn PDF document text
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/317e7cbcd6bac8b5747028f476f495b9/78888038947.pdfIn PDF document text
- http://zeci.nl/im/image/rudututuwafiba.pdfIn PDF document text
- http://orderleesushi.com/uploads/files/fejikiboteminabixemad.pdfIn PDF document text
- https://getadoc.in/ckfinder/userfiles/files/merapowubiladetowelo.pdfIn PDF document text
- http://www.jobsincrete.gr/images/_user_na/file/76701005649.pdfIn PDF document text
- https://quickonboarding.com/wp-content/plugins/super-forms/uploads/php/files/5542d0f54f17ccc9edb7ce37d662ef1a/17599489924.pdfIn PDF document text
- http://3mfa.com/images/editor/files/51053712016.pdfIn PDF document text
- http://gasthaus-steinkirchen.de/img/editor/file/21782082618.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/fulajijowanovirufis.pdfIn PDF document text
- https://rajakeempat.com/contents//files/96082435400.pdfIn PDF document text
- https://condominiovillage.com/userfiles/file/xelax.pdfIn PDF document text
- https://adasms.fr/userfiles/file/juzugetefazafofajir.pdfIn PDF document text
- https://bonacorsi.it/file/93881223324.pdfIn PDF document text
- http://parkety-patemal.sk/files/file/50195673402.pdfIn PDF document text
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/t4a31crd2akttl9g4981jt9m14/gupavizumenimas.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/rhftakfa2b6ma0kjksdc2p0np4/guguwatasosejas.pdfIn PDF document text
- https://www.sixteengrams.com/wp-content/plugins/super-forms/uploads/php/files/kftlgcv0qo381v3n4bknlrvjjm/82902426329.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_off0000d458.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD458 | 10316 bytes |
SHA-256: 830cc239d5ff91986a100bbabe174c1c9f779d9db2ebb2069840a7f6bfd244f6 |
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font_01_sfnt_off0000ebca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBCA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000103dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103DC | 18000 bytes |
SHA-256: dd7d2f4ebda63c6e665990f9bb14dd3ab757b6c0c35138848cfb7aee36884dbe |
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