MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is often used to initiate malicious actions. The sample also exhibits characteristics of a link farm, with numerous URLs pointing to compromised WordPress upload directories, suggesting an attempt to distribute further malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 8
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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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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://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a70f2429de8---xalumuzi.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/hgg6loeec4oe6bdmfpnnndepdo/pojidusanomowezixesa.pdf
- http://hermangroupcorp.com/clients/3/38/389628ddbd62db2fa1e4299ecdfc1861/File/55358276873.pdf
- http://www.iamgoingto1996.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084fb8470e98---35452690792.pdf
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606de28d08c83---97569800846.pdf
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/5rou37j6ti7mcc7hm2mc6uflh4/87612919415.pdf
- https://siangyun.com/upfiles/editor/files/68462984104.pdf
- http://kasintorn.com/images/upload/files/64886192370.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16080e8a140ab9---97803593940.pdf
- https://imahima.xyz/js/ckfinder/userfiles/files/43466894372.pdf
- https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096d7d224314---dawuz.pdf
- http://rymwid-training.com/userfiles/file/75876476617.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160c2dcc79278c---87545547857.pdf
- https://mindspacepsytherapy.com/upload/ckfinder_temp/files/20210610190259.pdf
- http://ankurgroups.com/userfiles/file/jabusegubagowutele.pdf
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/160763bdbb937a---gesebub.pdf
- http://asiavent.com/UserFiles/file///92012037708.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/s5lov3cm38l7o0dmslfcm55ro7/gawowamumisabujedu.pdf
- https://mls.lighting/wp-content/plugins/super-forms/uploads/php/files/facd580a8c14827f9f48397353420655/57229193518.pdf
- http://tuanayapim.com/rsm/files/26646202465.pdf
- http://dachastyle.com/userfiles/file/turulovo.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/1c5aa8f2001db76ba76dcfecbfe952c3/viralisiteranurefosuk.pdf
- http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/a106fdfec8d6b0138453d77f2fdacdb0/besilibajemoke.pdf
- https://joepromenshealth.com/wp-content/plugins/super-forms/uploads/php/files/434daea4a3e3133c4e1fbe20e498db52/zatosenesifid.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=the+sound+of+music+part+2+class+9+questions+and+answers
- 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_off0000f49f.bin4ad2908ee9c599cf2bc09cf1c5994270a43bcbd2f2432472daf328dd9d9e80cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF49F | 17452 bytes |
font_01_sfnt_off000121fc.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121FC | 16792 bytes |
font_02_sfnt_off00013a13.bin7bc5c8d686df1ed22d1cf7d38edd3f25abd81819f8a477f256d494056afedbd0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A13 | 11468 bytes |
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