MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV detection as a phishing trojan. It contains numerous links pointing to compromised WordPress upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely leveraging a PDF exploit or social engineering to redirect users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
Heuristics 6
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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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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://inwebjor.ru/uplcv?utm_term=symptoms+of+whiplash+from+side+impact
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/4e3e30c9b12dbe7b464fae28a8fdb09a/36011836803.pdf
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/873a9e72e168e4aef2102de83d0fbf64/84978410981.pdf
- http://kythuatviet.vn/uploads/userfiles/file/paxesolagabolotunisag.pdf
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/2161610479.pdf
- http://doo-san.com/userfiles/file/20210521114627.pdf
- https://okazdedziecko.pl/_files/Media/file/jepijajisaves.pdf
- https://topclassgreenery.nl/images/file/99710507561.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/ua2q1rfrkqmd5ugiqm6tk2bun3/reresozapovudupikasov.pdf
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/86df0208d042acf8e417139d07fb8334/15499783938.pdf
- http://xn--80aafkqcanfpgnhbng3b5i9a.xn--p1ai/pict/file/puwuzesewufezo.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2e5f714072---fifuxur.pdf
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a7e8a7c24---bomabegala.pdf
- https://bem-sa.com/img/file/disomakozigisebizowasoje.pdf
- http://mitsubishilongbien.vn/images/ckeditor/files/13088023695.pdf
- https://www.physioaktivkramer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608ed8dbce4ac---sanawoxem.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085b6bb33e23---kobis.pdf
- http://cancercareresearch.com/userfiles/file/subor.pdf
- https://encoregallery.us/wp-content/plugins/super-forms/uploads/php/files/67f1703c6480d40db4cc2a40bd9c558a/rukamak.pdf
- https://alshaabcoop.com/userfiles/file/57904501722.pdf
- http://www.cenlaenvironmental.com/siteuploads/editorimg/file/towirosiwevupenuxizudoka.pdf
- http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae6edc8d362---94574339803.pdf
- http://nutricion-intravenosa.com/wp-content/plugins/super-forms/uploads/php/files/41493bab8fd5b9616cd6685614a146af/83127772285.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_off0000eeea.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEEA | 16792 bytes |
font_01_sfnt_off000106fc.bin636c4ddf082f5e9e836bc026614cf1b5ea66dad6b59c7feeb8fbc8a1761be1fa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106FC | 16892 bytes |
font_02_sfnt_off00013317.bin81c894c5189c42973b54e1e7d08e1be83180d6bf7a7213a75fb8cdba09026bbf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13317 | 11056 bytes |
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