MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as a phishing trojan by ClamAV. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to various websites. Notably, some of these URLs lead to compromised WordPress upload directories, suggesting a tactic to host malicious content or redirect users to phishing sites. No scripts were extracted, but the PDF structure and link farm nature are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3517
Heuristics 5
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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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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://juha.be/_files/file/52452454099.pdf In PDF document text
- https://heritran.vn/uploads/news_file/jivupotujore.pdfIn PDF document text
- https://amatnieks.lv/pictures/image/23486479804.pdfIn PDF document text
- http://kemnhapkhau.com/upload/files/vegikorivun.pdfIn PDF document text
- http://leaders-adv.net/userfiles/file/lunajutizimuzojosirotam.pdfIn PDF document text
- http://pzhjintai.com/upload/files/vowafibaxekexeledemisoru.pdfIn PDF document text
- http://www.waetsukai.jp/system/ckfinder/userfiles/files/46656432793.pdfIn PDF document text
- https://cortopolis.ar/userfiles/file/reseronutirugagefewuko.pdfIn PDF document text
- https://coopinproject.eu/ckfinder/userfiles/files/4829950838.pdfIn PDF document text
- http://teplorium.su/userfiles/file/golasufoperigaxufipiwu.pdfIn PDF document text
- https://onsale.social-push.cc/data/fckeditor/files/mobit.pdfIn PDF document text
- http://aotwresort.net/ckfinder/userfiles/files/kivamesafopud.pdfIn PDF document text
- http://babijie.com/upload_fck/file/2021-9-16/20210916114606515131.pdfIn PDF document text
- https://pakianco.ir/data/image/uploads/news/files/nojugawoberegababi.pdfIn PDF document text
- http://crystaltrade.hu/data/file/potizevovoxejopisij.pdfIn PDF document text
- http://borik.customreal.sk/data/files/rosafusisodexe.pdfIn PDF document text
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161473767b2443---63952416531.pdfIn PDF document text
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613405063e0f9---xenefefedikonegomit.pdfIn PDF document text
- https://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/1bb082c0deb486ca2880b427a85d421c/31333310004.pdfIn PDF document text
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147a851bec28---14693122043.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/mifejj5n467ans8bg4avsu8ha2/muvoxubomozubufinuwumug.pdfIn PDF document text
- http://bellina.pl/userfiles/file/46183922226.pdfIn PDF document text
- http://agppi99.pretty-match.com/upload/files/polisomupalawobuxafuvok.pdfIn PDF document text
- http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613182ee25084---kupulaxevopedutaniwesipe.pdfIn PDF document text
- https://krassimirtaskov.com/userfiles/files/42874981099.pdfIn PDF document text
- http://fitsiluet.cz/data/file/lixuborasizufabefuravanul.pdfIn PDF document text
- http://checopharma.com/upload/files/29120597342.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=how+to+make+an+app+using+apiPDF 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_off0000d90a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD90A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f121.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF121 | 10720 bytes |
SHA-256: 8612e557dc3e49000014e53f2d751b2a586aeefc14b9df12c3af94770f2672a7 |
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