MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to various PDF files hosted on potentially compromised or disposable domains. The presence of a link farm on disposable hosting, combined with the lure of a software download, strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 http://iuoooo.com/filespath/files/20210915072518.pdf In PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/16137d16e6e191---22318994979.pdfIn PDF document text
- http://imprezka.2kc.pl/Upload/file/xodosov.pdfIn PDF document text
- https://abbma.in/admin/uploads/file/59381161519.pdfIn PDF document text
- https://rosycaffe.com/file/volifavulisowakogav.pdfIn PDF document text
- http://kfbma.org/files/fck/file/nanikabedusuxewupibop.pdfIn PDF document text
- https://vegas-shop.net/uploads/files/36578631813.pdfIn PDF document text
- http://astprom.ru/sites/default/files/file/30736571402.pdfIn PDF document text
- http://techbis.pl/files/file/63487852243.pdfIn PDF document text
- http://www.verneteco.com/ckfinder/userfiles/files/51263175883.pdfIn PDF document text
- http://branpc.in/ckfinder/userfiles/files/wizutajet.pdfIn PDF document text
- http://andreagarciam.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130a649d48f4---99903830110.pdfIn PDF document text
- http://tentauto23.ru/ckfinder/userfiles/files/tidedemipu.pdfIn PDF document text
- http://zrdb-drogbud.pl/Upload/file/xixuwanipexusoxidixar.pdfIn PDF document text
- http://skolky.info/foto/images/file/xifolulebajupido.pdfIn PDF document text
- http://furniture83.com/upload/files/sibolopuki.pdfIn PDF document text
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c8e553c8a7---36560308451.pdfIn PDF document text
- http://orenprom.com/img/account/file/basevevuniwirixedi.pdfIn PDF document text
- http://agriturismolataggiasca.eu/userfiles/files/81955935282.pdfIn PDF document text
- http://tourister.kr/userfiles/file/tebajiker.pdfIn PDF document text
- http://awfiowv.love-mrt.com/upload/files/64254549256.pdfIn PDF document text
- https://karolinanowak.com/userfiles/file/putibaxo.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=download+construction+simulator+2014+apkPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c697.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC697 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000deae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEAE | 11196 bytes |
SHA-256: a48e725970c9076c7ef8e6f208b0a6b97f84d6911c30c1b039c96b99d78b08e0 |
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font_02_sfnt_off0000f900.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF900 | 16636 bytes |
SHA-256: 8d2c48a1f9b5f257e5bd4e13a31acab9e96686d30daf3b3b81f3030da5a83937 |
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