MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to compromised WordPress upload directories, which likely serve as a distribution point for further malicious content or phishing pages. The presence of numerous external URIs and the use of disposable hosting further support a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://krisoc.ru/uplcv?utm_term=9th+english+book+answers
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/16096272a02d90---57306347012.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/c01ca55b44b665fff2b3be741874e037/jiramax.pdf
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609b8f8d7b166---buxanerodewud.pdf
- https://razvozka24.ru/wp-content/plugins/super-forms/uploads/php/files/24b990d0d3e78cbe4be01e965964e3db/pajizipemazatibamok.pdf
- http://basyapiemlak.com/yukleme_klasoru/userfiles/file/87755714423.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767f48dd365---litobinobomibigafawomije.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607e745a4dfd3---jotefapagazavajo.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3c74e57629---zidevikebexixobiviliguvu.pdf
- http://v-lukomorie.com/uploader/files/80333753149.pdf
- http://masonlegacy.org/clients/61515/File/ridufijarixekulu.pdf
- http://deltastal.ru/userfiles/file/87891309562.pdf
- https://ctyhoanongangiang.com/userfiles/file/14759099822.pdf
- https://prestinieurope.ch/userfiles/files/4286373962.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/32458c2bd3083bae2e15d4fc06d21c1b/lefoxemowafodupelimenod.pdf
- http://bi-acaovo.com/upload/files/24122972088.pdf
- http://mstreatmentadvances.com/userfiles/files/wenevaxisewapelesatixapa.pdf
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/ijmcgollpr26vs2trddcoqnsd4/71699615934.pdf
- http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d85be1c9ce---kotobanakimanudalan.pdf
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/897e801b0add7052a33423af9dbb5a81/kedudutesiximizufikaj.pdf
- http://dirabrealtors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b62d0e9a31f---tuxezejod.pdf
- http://scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/39245565456.pdf
- https://www.opdrrustukalac.com/wp-content/plugins/formcraft/file-upload/server/content/files/160855d332c3c1---sedamidadota.pdf
- https://ascinfratech.com/clientprojects/trading/file/41233594100.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_off000104b3.bina4cf9339735b8599a7e558549f5858ec03bfef4aea086688998b8014c3ebbb6a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104B3 | 16788 bytes |
font_01_sfnt_off0001307a.bin6a77e1d1f5e5c494b1adadcbe18c34e2ee153943e5e0ebc734851e480ed24a37 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1307A | 10776 bytes |
font_02_sfnt_off00014952.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14952 | 16792 bytes |
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