MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document contains numerous links pointing to external PDF files, many of which are hosted on compromised WordPress sites. The heuristic firings indicate this is a link farm designed to distribute malicious content, likely a phishing lure or malware. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9350
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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 http://orderleesushi.com/uploads/files/98347345189.pdf In PDF document text
- https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/e61c824c12bd2d03999aac81b2db6747/58494980149.pdfIn PDF document text
- https://butchercurnow.com/img/shop//contents/pebaxam.pdfIn PDF document text
- http://air-con.ru/upload/files/64564609882.pdfIn PDF document text
- https://teenvolunteerhouston.org/wp-content/plugins/super-forms/uploads/php/files/b8ce5681508e28936330237eb5f9eb53/mewaxiwadigaler.pdfIn PDF document text
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/73e8253db6f45d7587d4830b8319a016/97336647052.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca140c5b3c---berovulanebosepuxuzil.pdfIn PDF document text
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608444418ab86---pomaweru.pdfIn PDF document text
- https://vieclambaohiem24h.com/upload/files/39596299196.pdfIn PDF document text
- http://wisdomtours.net/upload/file/67140194800.pdfIn PDF document text
- http://wuxihemei.com/ckfinder/userfiles/files/20210607_061747.pdfIn PDF document text
- https://btcauction.vn/hinhanh/file/dozabudut.pdfIn PDF document text
- https://bibliotheque-des-arts.ch/ckfinder/userfiles/files/26016656205.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a6fca0bf6ea---lamofijomupivubutesifer.pdfIn PDF document text
- http://premsaktidal.in/userfiles/file/dojilomonozavukedimugazov.pdfIn PDF document text
- https://jgmurphy.com/wp-content/plugins/super-forms/uploads/php/files/e5b4a5bd4e7d3be6fc1166b009488ee6/mizibenidalilutupatu.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f31a90c5e8---34573197758.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/1eb1a9d4c17a26acfd45feefda710146/99642520874.pdfIn PDF document text
- http://lucidareemantenerepavimentifaidate.it/userfiles/files/43506155873.pdfIn PDF document text
- http://www.asslar.de/downloads/45593464426.pdfIn PDF document text
- https://topaldanang.com/uploads/image/files/bakizo.pdfIn PDF document text
- http://hamdard.com/hamdard/app/webroot/img/ckfinder/userfiles/files/jurowupinubip.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/BkSY9tpko7c/uplcv?utm_term=civilians+at+war+world+war+2+worksheet+answersPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000102e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102E9 | 17084 bytes |
SHA-256: 6c0e4f11288aa58dce9b21009aeeedd79762d6260965e628391755e9c53f4908 |
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font_01_sfnt_off00012f72.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F72 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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