MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains multiple links to compromised WordPress sites, suggesting an attempt to host malicious content. The presence of a 'download button' heuristic and ClamAV detection as 'Pdf.Phishing.Trojan' further supports a phishing or malware distribution attack pattern. While no scripts were directly extracted, the overall structure and heuristics point towards a malicious document designed to trick users into downloading further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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 http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/ebe3f12ec267a01d38313a898e179744/65991237736.pdf
- http://szpk.hu/_user/file/36609483864.pdf
- http://jump360.co/upload/files/20210604155154.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-5-18/20210518092620873975.pdf
- https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160946e5d9160a---28051221929.pdf
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/f703366ba6d970bf7e9804f21af00f47/korekipo.pdf
- http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/44376263631.pdf
- http://sarljarry.fr/userfiles/file/rizujiwasav.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a6b0fe568c3---31168900391.pdf
- http://jucal.es/images/file/50455279613.pdf
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098563f8c0e4---tosimibexeloroki.pdf
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b6309d381fe---giwawuligitula.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/a7591e6e8b6354ca6592b9306580b9b3/zodikutexol.pdf
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ab4fdd2622---39111912792.pdf
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3cd93797b6---bavuguxutug.pdf
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a011133b937---18634024431.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/l7afej9av97ng144fngo06v2sq/55239356888.pdf
- https://wipaphun.com/UserFiles/File/48789474698.pdf
- http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607b08a61d688---47802511710.pdf
- https://sweetestspaparty.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f218e85444---zesapafafafo.pdf
- https://heritagelogs.com/wp-content/plugins/super-forms/uploads/php/files/2ll2sue8amirr88bj17i2rvo4k/fobobomubiribuxof.pdf
- http://driscollandgibson.com/images/edit_images/file/78962385871.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c962d9a7e82---14999321028.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b1a4b2bc4ac---gesupobatedo.pdf
- http://benthanhsgfarm.net/images/uploads/files/47172273972.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=after+effects+download+free+apk
- 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_off0000e9a4.bind056838199bf28894355fabf5c9c24951430173236cf58a965cf8ff64ef4065a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9A4 | 17764 bytes |
font_01_sfnt_off0001186a.bin45a35ad8790d879d91cd7628857c438571b9963138ff84c64454e350c949c882 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1186A | 10680 bytes |
font_02_sfnt_off00013130.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13130 | 16792 bytes |
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