MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as a malicious PDF by ClamAV, specifically a phishing trojan. Static analysis reveals it functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads, likely intended to lure users to malicious sites. The presence of multiple distinct hosts and a high number of links per host suggests a coordinated effort to distribute phishing content.
Machine Learning
- Nyx PDF Classifier suspicious score 0.4279
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://sbsinternationalschool.org/sbsisnew/userfiles/file/sirovivofomuwolavap.pdf In PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717aabcea70.pdfIn PDF document text
- http://happypalettebnb.com/CKEdit/upload/files/71839934799.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c70eb7648f9---72933102991.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b1e976a3927---wijedeniwudazobuvapi.pdfIn PDF document text
- http://abwbaltimore.com/uploads/files/josuxatenano.pdfIn PDF document text
- http://zhuoer.ltd/userfiles/file/27409027262.pdfIn PDF document text
- https://gregor-biffiger.ch/userfiles/file/bosunosigexupozunis.pdfIn PDF document text
- https://mmeasar.com/mmeasarfiles/file/rirejixopap.pdfIn PDF document text
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c55930803---28652482680.pdfIn PDF document text
- http://asupuro.com/upload/save_image/files/64455264535.pdfIn PDF document text
- http://xn--80age2amlc.xn--80adxhks/pics/images/file/2684655627.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/jt91ajdp1gd2b760p9biih2vu5/26341432831.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adca048f39f---28387203700.pdfIn PDF document text
- https://espaciocultivarte.com/ckfinder/userfiles/files/zitujerosowosul.pdfIn PDF document text
- http://tahyuh.com/uploads//files/202108081844243719.pdfIn PDF document text
- http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b4c29907e34---juzuwimojogetazug.pdfIn PDF document text
- http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b5bf352b05a---32426696971.pdfIn PDF document text
- https://twr1115.net/files/fckeditor/file/68326677341.pdfIn PDF document text
- https://bokseinstituttet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160e22e37bdad9---bojidupeniwu.pdfIn PDF document text
- https://cqc-material.com/app/webroot/userfiles/files/54743078126.pdfIn PDF document text
- http://minuspk.ru/minuspk.ru/userfiles/file/20743887917.pdfIn PDF document text
- https://beldapin.com/calisma2/files/uploads/57483513994.pdfIn PDF document text
- http://sportgalaktik.sk/userfiles/file/99424017598.pdfIn PDF document text
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e2c70ec4f2---35951740446.pdfIn PDF document text
- http://oralrem.kz/ckfinder/userfiles/files/88207321125.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=list+of+herbs+and+their+uses+pdfPDF link annotation
- 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_off00022eb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x22EB0 | 16984 bytes |
SHA-256: f6fafff30742dce8f92ac5a6a0cefa7b21132f34edf800b7d49260ee2bc47606 |
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font_01_sfnt_off00025ac8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x25AC8 | 10744 bytes |
SHA-256: 7308c52e90e6c5cf713cbfac662e61fd9a2bc44e7b367b5d137d71eb9f0c354b |
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font_02_sfnt_off00027337.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x27337 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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