MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://archism.ru/uplcv?utm_term=clear+thumbnails+android PDF link annotation
- http://idroter.org/userfiles/files/jazapekegarudo.pdfIn PDF document text
- http://bifruit.mk/ckfinder/userfiles/files/lolibodi.pdfIn PDF document text
- https://radmangroup-ye.com/rgfiles/file/31703096795.pdfIn PDF document text
- https://pelicanfinancialnetwork.com/ckfinder/userfiles/files/28639101590.pdfIn PDF document text
- http://dalaichau.com/files/posiwigikofevugesizivube.pdfIn PDF document text
- http://brucemayrockinstitute.com/assets/ckfinder/core/connector/php/uploads/files/potisibafaf.pdfIn PDF document text
- http://drairtools.com/ckfinder/userfiles/files/20422871361.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161404224742da---pasubakowiz.pdfIn PDF document text
- http://doubler-son-capital.com/photos/files/33425389585.pdfIn PDF document text
- https://otoform.com/upload/ckfinder/files/95758162346.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/oq2tdbvo756n9opnkku68i6i30/zizuxevamidopoxire.pdfIn PDF document text
- http://sinching.com/uploadpic/files/202109171355243134.pdfIn PDF document text
- http://dienlanhtruongson.com/upload/files/1506530697.pdfIn PDF document text
- http://artio.pl/files/files/bawipasimafubuna.pdfIn PDF document text
- http://newgatedesign.com/Images_upload/files/sevufumasutidilibexem.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/161441736f2c3b---25178810487.pdfIn PDF document text
- http://andreuma.madteam.net/ckfinder/userfiles/files/zuvavu.pdfIn PDF document text
- https://www.gico.ge/ckfinder/userfiles/files/85586069929.pdfIn PDF document text
- http://www.iciparis.ru/ckfinder/userfiles/files/jedomijafikisoji.pdfIn PDF document text
- http://mt-filtration.com/uploaded/file/150800910761356c742754a.pdfIn PDF document text
- http://mcutech.net/upload/2021/09/file/1631142174833090564.pdfIn PDF document text
- https://egyptsuntours.com/userfiles/files/kevox.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_off0000e222.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE222 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fa39.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA39 | 10784 bytes |
SHA-256: dd09545840af9cfdd4c4d837e9ffa3dfd6082f2d3a327048ab61cab39b729f33 |
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font_02_sfnt_off000112d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112D4 | 17464 bytes |
SHA-256: f1be1c714696c30720543fd52329e0502e5fe7c5d54a7b09deb6797760989cbb |
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