MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Numerous heuristics indicate the PDF functions as a link farm, directing users to various external URLs hosted on potentially compromised or disposable domains. The presence of 'utm_term' in one URL suggests a phishing or credential harvesting attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://coretry.ru/uplcv?utm_term=how+to+see+internet+password+on+phone PDF link annotation
- https://rsun.pro/admin/ckfinder/userfiles/files/mupevumupukepavidekid.pdfIn PDF document text
- http://caopump.com/admin/userfiles/file/tilubad.pdfIn PDF document text
- http://xn--sanitrprofi-p8a.ch/fckeditor/editor/images/file/netunoxaf.pdfIn PDF document text
- https://biroestarsa.hu/uploads/file/pidogulaxiditavilanomamaz.pdfIn PDF document text
- http://envisystem.com/upload/userfile/files/51692963052.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/nmuorqs2louokr6m6mntae08ic/5691150386.pdfIn PDF document text
- http://tano-cable.com/d/files/61720979761.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612f069976cff---13361311075.pdfIn PDF document text
- http://homeshopeez.com/uploaded_files/userfiles/files/94887869743.pdfIn PDF document text
- http://immobilier-valence-agen.com/userfiles/file/popibojevewo.pdfIn PDF document text
- http://business-baltic.com/myfiles/dok/79320525159.pdfIn PDF document text
- http://hit-air.pro/ckfinder/userfiles/files/gotaraduv.pdfIn PDF document text
- https://sabunwangi.com/contents/files/jufibenememamuniwise.pdfIn PDF document text
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/e9f87190df0ad8ad01236817e409827c/gabotarevawofolaxoru.pdfIn PDF document text
- https://wroclawmodelshow.pl/ckfinder/userfiles/files/20583502851.pdfIn PDF document text
- http://musicpark-live.de/userfiles/file/melilala.pdfIn PDF document text
- http://xn----ftbkdcamitb5h.xn--p1acf/files/fck/file/68628639029.pdfIn PDF document text
- http://happyhanool.com/ckupload/files/woditofexadijo.pdfIn PDF document text
- http://abyss.sk/userfiles/file/rivenakuwujosidog.pdfIn PDF document text
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/2962479911.pdfIn PDF document text
- http://jj-metals.com/userfiles/file/2021090417490273499.pdfIn PDF document text
- https://penal-garazh.ru/files/revopufa.pdfIn PDF document text
- http://tatugigo.com/ckfinder/userfiles/files/75904058653.pdfIn PDF document text
- http://antansconstructions.com/ckfinder/userfiles/files/12862103380.pdfIn PDF document text
- http://getampedmag.com/ckfinder/userfiles/files/53971924704.pdfIn PDF document text
- http://isisthailand.org/file_media/file_image/file/63268200304.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_off0000c863.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC863 | 17004 bytes |
SHA-256: ff058b2d793d3e8a1993763e57dc69bc9702568f0c48753f5ece10fdd071946b |
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font_01_sfnt_off0000f44b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010c62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C62 | 10520 bytes |
SHA-256: 3bde495aa99acb4753bed4197e83aed434e195f9be2048c5ac987a46cbc0251b |
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