MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs, many of which point to compromised WordPress sites or disposable hosting, indicative of a link farm. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to lure users to phishing sites or download further malware. The embedded JavaScript stream (Offset 0xEB0D) is a common technique for obfuscating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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 https://n-v-v.dk/userfiles/file/60098635932.pdf
- https://umartravel.com/files/makogi.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7af2a94719---7297010271.pdf
- http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b9c13f36dcf---8625759994.pdf
- https://digireg.lu/upload/38530073862.pdf
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/a881efe5addb89dc06a6ec4d1bc072a0/91221387360.pdf
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b95988e93c5---17845616553.pdf
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609143d899b28---43368339921.pdf
- http://box8websites.com/ckfinder/userfiles/files/vedali.pdf
- http://qtjdb.com/UploadFile/2021/06/07/file/20210607_161248_167.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8fa9b3f6e9---89598288636.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083eed1509eb---98284211860.pdf
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/c0ro7fgtniqdhirjkuhvis1t37/zanajofipesibo.pdf
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/f7ee02b78fd67569285382d3ef04633b/71941256092.pdf
- http://gok-maciejowice.pl/js/ckfinder/userfiles/files/68480213458.pdf
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bb5518600ac---52976802615.pdf
- http://elementsgogreen.com/userfiles/file/58163438395.pdf
- https://ludifrance.fr/userfiles/file/junenul.pdf
- http://stpatricksreunion.org/clients/84553/File/jipinagigerefuvukig.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094421b30bc4---58587239787.pdf
- http://www.lavalledesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161005e0507d96---talibupeg.pdf
- https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/21k538dmkgpssecj6ulqfmahgd/10139778600.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=bleach+mobile+3d+mod+apk+revdl
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fd04.binf499e7af3b4f17190cbc8a4b96730e75b2039c0b8c26756afc5d6d100cb3ba9c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD04 | 3992 bytes |
font_01_sfnt_off00010c31.bin6cd97be3e9482599f6206558ce4c4cfe738a90405d5baf38ec266869d75a0713 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C31 | 10932 bytes |
font_02_sfnt_off0001253d.bin73f874dab0af54ee5d0df26eb190746929b23e8120eb75b9546d78c331f88e05 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1253D | 18580 bytes |
font_03_sfnt_off00015491.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15491 | 16792 bytes |
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