MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Several heuristics identified the document as a link farm, with many URLs pointing to compromised CMS uploads or disposable hosting. The embedded URLs suggest an attempt to redirect users to potentially malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://krossi.ru/images/content/files/puneb.pdf In PDF document text
- http://htbestcomputer.com/media/ftp/file/sulegavinafef.pdfIn PDF document text
- http://all-paca.com/ckeditor/ckfinder/core/connector/php/uploads/files/16054383224.pdfIn PDF document text
- https://dragonexpressml.com/userfiles/files/77669823126.pdfIn PDF document text
- https://arnetbilgisayar.com/upload/ckfinder/files/38931274451.pdfIn PDF document text
- http://uforoi.com/app/webroot/uploads/files/tasusuxijo.pdfIn PDF document text
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/161390a70437f2---lorugerosuku.pdfIn PDF document text
- http://mas.vacations/wp-content/plugins/formcraft/file-upload/server/content/files/16138dfc705608---87789146858.pdfIn PDF document text
- http://progfin.pl/userfiles/file/gebuwimojeduterinijudexuw.pdfIn PDF document text
- http://tmkb.org.tr/ckfinder/userfiles/files/tutogog.pdfIn PDF document text
- http://quiltingacademy.info/fckeditor/userfiles/file/wodobekus.pdfIn PDF document text
- http://benhvienlaptop.biz/userfiles/file/guzilo.pdfIn PDF document text
- http://skiflogistics.ru/userfiles/file/komumo.pdfIn PDF document text
- https://sabresources.com/FCKuploads/file/sasejegebareka.pdfIn PDF document text
- http://xn--80ackbssfuieecff0e8c.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/modfmv4tosqph51d2h7fjjs8k1/mijewilazevov.pdfIn PDF document text
- https://bodymason.com/user_uploads/files/6655560112.pdfIn PDF document text
- https://maryamghiasi.com/images/upload/files/12188851002.pdfIn PDF document text
- http://longruiglass.com/ckfinder/userfiles/files/20210904_022933.pdfIn PDF document text
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/16e239c27c6754beb0a98f9a1dad9a37/xoganati.pdfIn PDF document text
- http://cl-pub.com/files/files/rumisetexapugemuwa.pdfIn PDF document text
- http://scales-center.com/shop/fck_file/file/22650613303.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/5eop85qpoif62o5ourqsuj0pte/zagumebowalut.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=the+walking+season+3PDF 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_off0000dd15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD15 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f527.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF527 | 18272 bytes |
SHA-256: bd7828c2b207113c3205d83c0f7bdec267f1ffec5e918df3ff6e90e0e796333b |
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font_02_sfnt_off00012459.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12459 | 10500 bytes |
SHA-256: c4e0622c961ca5375d029f76a3f20f778219a748197619223213e0eef16324be |
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