Malware Insights
The sample is a PDF file detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript, which is a common technique for executing malicious code or redirecting users. The PDF also features a link farm pointing to compromised WordPress upload storage and disposable hosting, suggesting an attempt to obscure the final malicious destination. The presence of embedded JavaScript indicates an intent to perform actions beyond simple document display, likely involving the execution of further malicious code or redirection to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.7965
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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 https://mmgrowersg.com/ckfinder/userfiles/files/xuzigol.pdf In PDF document text
- https://listapp.in/ci/userfiles/files/lipuroposikedifijagev.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/fcf0ae06d986a3cc76024f3cf8f86ef0/ligavupigomajajijubunuju.pdfIn PDF document text
- http://asiavent.com/UserFiles/file///37963142195.pdfIn PDF document text
- http://vevo.keresztessyoptika.hu/elemek/file/biguwixelofer.pdfIn PDF document text
- http://hourinkan.net/js/upload/files/94993619826.pdfIn PDF document text
- http://psychologadamczak.pl/userfiles/file/75519177861.pdfIn PDF document text
- https://kentacademymiango.com/userfiles/file/99521552722.pdfIn PDF document text
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c0afecd98---72598872695.pdfIn PDF document text
- http://sevenseahotel.com/uploads/images/files/zedufojatugabubusivur.pdfIn PDF document text
- http://ckm-machinery.com/userfiles/files/41093584528.pdfIn PDF document text
- http://rustproofingottawa.com/userfiles/file/423633843.pdfIn PDF document text
- http://mijn-nederland.nl/userfiles/file/4718736198.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133c3cd93677---67902358634.pdfIn PDF document text
- https://hiddencliff.kr/FileData/ckfinder/files/20210911_B3310FF3B970A270.pdfIn PDF document text
- https://www.scmsgroup.org/ckfinder/userfiles/files/fofaradozisikopejok.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f952447c12---dedobanufazugolupi.pdfIn PDF document text
- http://ekbdrive.ru/ckfinder/userfiles/files/xapugorototezibesimuwesed.pdfIn PDF document text
- http://polipack.ru/content/file/gegunejomotakogazimi.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/potazolemodiwabiwa.pdfIn PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/25925819199.pdfIn PDF document text
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/61909924338.pdfIn PDF document text
- http://evevoyance.fr/adh/.-/file/zemupadupezenopoj.pdfIn PDF document text
- https://spheresignal.com/app/webroot/userfiles/files/9748442591.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+transfer+whatsapp+messages+from+android+to+another+android+phonePDF 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_off0000d4b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4B3 | 10976 bytes |
SHA-256: 23422c62cb00689f36ab374d62ac44cac9e704f7fef39a7b3c19ce83e4252b33 |
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font_01_sfnt_off0000edc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDC8 | 17844 bytes |
SHA-256: bb04a81572fd4eb12477a21d43f49e69ffdc9301e30ba6dd89b86532f19a0d39 |
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font_02_sfnt_off00011c59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C59 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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