MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised or disposable hosting, suggesting a link farm used for phishing or distributing further payloads. The PDF structure and link farm heuristics strongly suggest a malicious document designed to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://85097781.com/upload/files/gipenoju.pdf In PDF document text
- http://jatechkj.pl/upload/fck/file/rajajifogewavasaramiruji.pdfIn PDF document text
- http://hebammenglueck.de/ckfinder/userfiles/files/tifurifunekadi.pdfIn PDF document text
- http://es-umzuege-transporte.de/wp-content/plugins/super-forms/uploads/php/files/15dcf40651487bd4b8bb275fce874fc3/65553373829.pdfIn PDF document text
- http://beijingbeat.com/contents//files/nabavanuzufukadeza.pdfIn PDF document text
- http://marketingnews.fr/images/file/pubabazoxomobuzafik.pdfIn PDF document text
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/73766ee1c47042c82850447967da434c/21298581714.pdfIn PDF document text
- http://flywings.sk/UserFiles/file/34631276856.pdfIn PDF document text
- http://dztechfin.com/upload/file///ragasa.pdfIn PDF document text
- https://aashianarealty.com/file/40718197260.pdfIn PDF document text
- http://abwrva.com/uploads/files/jufetunonijonag.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d4d244a67e---baluxosatinojo.pdfIn PDF document text
- http://www.mueblesgamez.com/ckfinder/userfiles/files/piwiwobexovitifipagadi.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/b9f77dd24b37798c90488a0de21aad48/99006204403.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ddc3e29759---xagovi.pdfIn PDF document text
- http://instandee.com/Images_upload/files/15943324465.pdfIn PDF document text
- http://teplorium.su/userfiles/file/10986302320.pdfIn PDF document text
- https://pristineleather.com/userfiles/file/53079083511.pdfIn PDF document text
- https://uniqrelation.com/userfiles/file/58075626167.pdfIn PDF document text
- https://tanasiri.com/piceditor/file/71591412486.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021061100501373499.pdfIn PDF document text
- http://argyleliquidations.com/userfiles/files/63544417656.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=improve+writing+skills+english+pdfPDF link annotation
- 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_off0000c24a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC24A | 16472 bytes |
SHA-256: 710d1bc3b49a723f3079daab06c4690be36ce4df13ad9a3edf9f57a1bbf839d9 |
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font_01_sfnt_off0000ec4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC4F | 10980 bytes |
SHA-256: 1ea7311d4c5b4f2d1d3073d16152913523be9afa8372de611930a9a32e847527 |
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font_02_sfnt_off00010562.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10562 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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