MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of links pointing to various websites, many of which are hosted on compromised WordPress installations or disposable domains. This behavior is indicative of a link farm designed to distribute phishing content or malware. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.8284
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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://nomylo.ru/uplcv?utm_term=flatten+pdf+in+acrobat+pro+2017 PDF link annotation
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/d25br3hpovqpfi0jaqdet9k9a7/jiwas.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0c5700b3a---wilefi.pdfIn PDF document text
- http://zangerlelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luwuvipigurizinap.pdfIn PDF document text
- http://medi-sen.com/files/files/fapalisikax.pdfIn PDF document text
- https://hogozaty.com/ckfinder/userfiles/files/baxalijapasew.pdfIn PDF document text
- http://sksound.com/userfiles/file/10271542124.pdfIn PDF document text
- http://c2mag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160824b33d6e8a---bimizemavimulirunonanori.pdfIn PDF document text
- https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/1fdf86ddbe1fa61397860345f5e37280/75201491596.pdfIn PDF document text
- http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/wudigibodakokidepifas.pdfIn PDF document text
- http://tetobox-budapest.hu/uploads/files/95479124588.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/ced84629125e4abb739d59429b662d9b/zamusuwojebadeposupemaka.pdfIn PDF document text
- http://bereanbaptistashton.com/clients/1/1c/1ca8668e480cca1e897b6add33210fc6/File/sizitus.pdfIn PDF document text
- http://jrmhandling.nl/upload/file/jixidipadipibifizif.pdfIn PDF document text
- http://rybarict.cz/webpagebuilder/ckfinder/userfiles/files/34329272297.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/290a61eddb06d7e16f8ef6e7a1c0a3dc/jesipunupagukubi.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085c361a6cb0---wunam.pdfIn PDF document text
- http://labotinnghia.com/img/files/wegolotupe.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/sbe6dj32oj6q1lfajhjd8e9uc6/57841225226.pdfIn PDF document text
- http://origo.ws/userfiles/file/66186051888.pdfIn PDF document text
- http://1960whs.com/clients/7/73/73384dfd0d582a2861cf356c55c3c578/File/noxokofosasumitatazisub.pdfIn PDF document text
- http://ucity1967.com/clients/f/f9/f95c10655bf48216a4b8c8e4321ec146/File/43267883343.pdfIn PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bbea61892d6---rekerifojexolosurosotasi.pdfIn PDF document text
- http://reiki-roots.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c24c6dc0bd9---vudesirabenipijamarovapi.pdfIn 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_off0000dc80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC80 | 18588 bytes |
SHA-256: 272a25db9beeafa6eac08c6fc961d3975a5182b6cc2f9e68464054499591cf19 |
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font_01_sfnt_off00010d1b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D1B | 10908 bytes |
SHA-256: bbebad1651738f6e18de1d777a9efb3e03f28b2297d9f002783666caf678efa0 |
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font_02_sfnt_off00012643.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12643 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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