MALICIOUS
164
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 potentially compromised WordPress sites or disposable hosting, likely serving as a distribution point for further payloads or phishing content. ClamAV detection and ML classification strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
Heuristics 7
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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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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.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085dfae25c2a---24990337115.pdf
- http://gulfcoolcontracting.com/uploads/userfiles/file/file/56113895314.pdf
- http://safarekhoob.ir/basefile/safarekhoobir/files/54008851881.pdf
- https://zanhotel.ro/beficientconsultingFiles/file/nawijuvejibeka.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5a15cdb35b---97886741380.pdf
- http://jeansresource.com/js/ckfinder/userfiles/files/bupazunotipit.pdf
- https://refour.eu/wp-content/plugins/super-forms/uploads/php/files/95233752aab53b199ca76d30a299525f/53274979914.pdf
- https://member-amz-seller-system.de/wp-content/plugins/super-forms/uploads/php/files/23baa5c951113ec1283f08815e0b141f/13307681875.pdf
- http://dinskayarealty.ru/media/file/nibunuwilududajumipuz.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1608d0de593cd5---vubisefakes.pdf
- http://envigest.cz/upload/file/57307466318.pdf
- http://31kouqiang.com/userfiles/file/1624157564.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b29fe618bf7---19535409006.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/45cf255f6142c1d074e948ff493de1bb/55364174019.pdf
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a782b92f665---37305748601.pdf
- http://lapenya.cat/imgjovesnaves/file/89976269525.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607eea2ceaec2---34201852574.pdf
- https://advance-pack.com/editor_upload/file/76335666042.pdf
- http://beiwendq.com/userfiles/file/40897656264.pdf
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16096cb61a96fe---45243254084.pdf
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/kgdsk7rg7qg1kp2f207vhevps7/kamar.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=merry+christmas+gif+with+music+free+download
- 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_off0000f686.binab64118ee65fd79e092fffba5d0ade27b34148d47816295f0df16491297d8fef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF686 | 17460 bytes |
font_01_sfnt_off000123d7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x123D7 | 16792 bytes |
font_02_sfnt_off00013bee.binde9b9f2911ce0deed24546e6e68dc4f2c7445b70f0a9bad5155b5eb7fc450782 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BEE | 11216 bytes |
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