MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm or phishing lure. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. No scripts were extracted, but the overall structure and URL patterns are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://allytemp.ru/uplcv?utm_term=sonic+force+hack PDF link annotation
- https://www.newhorizonscrisiscenter.org/ckfinder/userfiles/files/47625578584.pdfIn PDF document text
- http://saint-party.com/media/file/38592384150.pdfIn PDF document text
- http://video-cycling.de/files/file/75452432861.pdfIn PDF document text
- https://rubyyadav.com/nbloom/fckuploads/file/3101612814.pdfIn PDF document text
- http://engineersclasses4competition.com/files/others/tabexu.pdfIn PDF document text
- http://clubselectionvoyages.net/images/file/14711555002.pdfIn PDF document text
- http://entrackintl.com/uploads/zixulutugizigu.pdfIn PDF document text
- http://dkmmotor.com/files/userfiles/file/kikugoxagafoposexux.pdfIn PDF document text
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/3d9da0a14269b0a1305a30c609efce1e/10938917206.pdfIn PDF document text
- https://naseeha.org/wp-content/plugins/super-forms/uploads/php/files/d4cc20560c90641b65e6a8d0d7b0549c/2649653828.pdfIn PDF document text
- http://huile-de-nigelle.info/userfiles/file/jaritolafuluvasarus.pdfIn PDF document text
- http://noithatsah.com/webroot/img/files/fizupadaxukisoteto.pdfIn PDF document text
- http://dayuntang.com/assets/uploads/ckedit/files/20210905061448.pdfIn PDF document text
- https://lecourbe.dk/userfiles/file/95094057040.pdfIn PDF document text
- http://kondicionery-krasnogorsk.ru/upload_picture/file/xusoberotarorigabun.pdfIn PDF document text
- http://sweet-sugar.de/images/uploadedimages/file/begisapigurovalotamubaw.pdfIn PDF document text
- http://a2kat.ru/userfiles/file/noriwa.pdfIn PDF document text
- http://hit-air.pro/ckfinder/userfiles/files/retegulajibujanavosufa.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/5bb16fb3c344d2114ff70dd0eab89bff/vemetosuv.pdfIn PDF document text
- https://bikidi.com/UpFiles/WebEditorFiles/file/72247391130.pdfIn PDF document text
- https://www.dooleysnaturalgas.com/ckfinder/userfiles/files/46001137678.pdfIn PDF document text
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/16134e73019d4c---kekofugafeteb.pdfIn PDF document text
- http://bibliotekaszamocin.pl/img/upload/files/96017932199.pdfIn PDF document text
- http://hcm-invoice.vn/hinhanh_fckeditor/file/jipumevokuxugapavobonabi.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_off000101fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101FB | 17204 bytes |
SHA-256: 0184d64c3739052e5911a1ed86decbe1e9d58a491cdd850a4c8d77ff3c1c5f71 |
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font_01_sfnt_off00012ec8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EC8 | 10288 bytes |
SHA-256: bd4eef05d4753b087b0d14e4c5db0f089069c2f4917e84542f702e251e6d47a5 |
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font_02_sfnt_off000145d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x145D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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