MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery via these redirects. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9773
Heuristics 7
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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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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://drafthe.ru/uplcv?utm_term=the+animals+lead+singer
- http://abwingsva.com/uploads/files/dobiwewakujikikomixel.pdf
- http://aps-mes.com/files/file/rukutigisomixikuluwewino.pdf
- http://ezibra.pl/upload//file/31615440446.pdf
- http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/a40k0k81dduhsveddgdm92oe35/kakepiramoj.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/7n1mmcou9sb95h4ma575vjmbh3/1335048240.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/4a38ef3ca1dd69ae2cde19ed03e132bb/21240959784.pdf
- http://adaviestransportltd.com/userfiles/file/40056380880.pdf
- http://studiotecnicopetrillo.eu/userfiles/files/1808705830.pdf
- http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160845ef71bea8---67328798150.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070e65d0d094---98542968777.pdf
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c34de089348---julosobexiw.pdf
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210603153124410771rkssch.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/5707a74179cba52d937f533fca940906/munolebabijajuz.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/0da47017d9e89062a5219274d84273ad/sevujibok.pdf
- http://aliceinformaticasrl.com/user/pages/kevuvev.pdf
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/1de762e4f2d64b54786c457f90c8e0df/25931497034.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/aheuo3ap97csdisuafjdtv8617/59051417786.pdf
- https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a366fd0c1a5---54312372240.pdf
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/acb4e017388363a24cfd526b4fb9e031/xudetufifi.pdf
- http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/28066071948.pdf
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7d7135e8f---40405415363.pdf
- https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/2ebjh3uclb29k7d8bh5lmden7g/53678074045.pdf
- http://slsnn.ru/content/file/vozibutaxo.pdf
- https://chp-travel.ir/data/file/detobi.pdf
- https://macleanpinesdrivingschool.com.au/wp-content/plugins/super-forms/uploads/php/files/e5ad0aae0a4c5c69cca65288a453668d/24061220718.pdf
- http://jyjwqj.com/uploadfile/file///2021060402024913.pdf
- https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085feda5c85b---pewesuluk.pdf
- 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_off00012e6d.bin64d1e029da9c6476b7c7e5691409ee33c5d77f07c5e0fdff2250adc71701d945 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E6D | 18712 bytes |
font_01_sfnt_off00015e5c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15E5C | 16792 bytes |
font_02_sfnt_off00017673.bin967858ffa5ba5ecf3bfb54245587bb31dcd50361e5f9065e68cfbf1bcb0705af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17673 | 10440 bytes |
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