MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains embedded JavaScript and a link farm pointing to compromised WordPress sites, suggesting an attempt to trick users into downloading a secondary payload. The presence of a download button lure further supports this malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 8
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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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/39ca7e650d844d3d93736fc906671a07/49489907301.pdf
- http://www.startservis.sk/novy/ckfinder/userfiles/files/zumadudatanigo.pdf
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/caed10e66d4eab3c7d8e233587a397a8/gabebizigovefafaro.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad90a105b29---90254911207.pdf
- https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/7412c6784c6f88abd14653952590efe3/29499147684.pdf
- https://grup-insaat.com/userfiles/file/kavigu.pdf
- http://mywymc.com/userfiles/file/dotarivoboviwanojuj.pdf
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/414b2ec4180bc6c9838b9e0c31dcee26/bejedirakulowiteki.pdf
- http://vtvxm.vn/userfiles/file/99737399836.pdf
- http://physocare.com/Images_upload/files/32010621795.pdf
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/a3adb06c3f620e67af84c750fb5cd2b2/78313990834.pdf
- https://sellos-mecanicos.com/wp-content/plugins/super-forms/uploads/php/files/43d77ee1d359c68891fad5c8792ca514/gezowu.pdf
- https://gikguamerica.com/userfiles/file/29963022270.pdf
- https://tripleccompanies.com/wp-content/plugins/super-forms/uploads/php/files/33baa071c459dcfba3f85075d4d99c7e/nikovumofesomorize.pdf
- http://syuncyoku.jp/upload/file/74739300152.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/pusurokamifisaxivewonemox.pdf
- http://vce34.ru/attachments/file/boxujewik.pdf
- http://falerisztika.hu/tmp/zebavabunozifusef.pdf
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/160effa0de360d---84254399291.pdf
- http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a9bbd61990e---97673055689.pdf
- http://dobrasekacka.cz/userfiles/file/83014737186.pdf
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8d7b923283---81638291464.pdf
- https://zazilha.com.mx/wp-content/plugins/super-forms/uploads/php/files/6cadeca49a114b7a1f4a9d8620bc47fd/52912501356.pdf
- https://hankilfood.com/upfile/files/85420960771.pdf
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a66cf578a07---40883637541.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=1973+vw+bug+repair+manual
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001402e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1402E | 16792 bytes |
font_01_sfnt_off00015840.binca51f2f0fe464eb4bf590797262c17e4aaf63d101413132f49297eee891888a8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15840 | 19084 bytes |
font_02_sfnt_off0001894f.binf6cae0e10dff57c2f96144d2d6f380a02f8f0657b1834982b8abac9668633853 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1894F | 10944 bytes |
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