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 or trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised WordPress installations or disposable domains. The presence of numerous URLs, many containing 'utm_term' parameters, suggests an attempt to lure users to potentially malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://crewmak.ru/uplcv?utm_term=2+step+directions PDF link annotation
- http://princeverma.in/uploads/files/zuwevojajivowirasamoji.pdfIn PDF document text
- http://air-con.ru/upload/files/lirorupelege.pdfIn PDF document text
- https://successstudio.net/userfiles/file/88298227608.pdfIn PDF document text
- http://syntra.pl/userfiles/file/mewafamunelapome.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614139aea1fe5---98820858927.pdfIn PDF document text
- http://31kouqiang.com/userfiles/file/1632780623.pdfIn PDF document text
- http://www.srijonihealinghome.com/fckimages/file/bikobebu.pdfIn PDF document text
- http://thementalhealthadvocates.org/files/userfiles/file/jejidetorepojikorozilib.pdfIn PDF document text
- https://skyfireconsulting.com/wp-content/plugins/super-forms/uploads/php/files/6sf7ln956718quh4k8lgc72n77/doropikotujenavunokumo.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/sijetafu.pdfIn PDF document text
- http://vdavloeren.be/userfiles/files/gusidu.pdfIn PDF document text
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/2bd5ocsh5dod9e1c3s0g69nd30/bokene.pdfIn PDF document text
- http://fruitvita.com/files/files/54648956086.pdfIn PDF document text
- http://danangsculpture.com/uploads/image/files/xexurodabuturezafuvologiv.pdfIn PDF document text
- http://vangphutai.com/images/uploads/files/24055862650.pdfIn PDF document text
- https://ekransamara.ru/files/jikotunarulobuxorigag.pdfIn PDF document text
- https://tractorpulling-emmeloord.nl/upload/file/23845150859.pdfIn PDF document text
- https://mpksieradz.pl/upload/file/40958366731.pdfIn PDF document text
- https://samoinstitute.mn/uploads/assets/file/lunazimujizomaf.pdfIn PDF document text
- http://maivietnamesecotati.com/uploads/files/97762773443.pdfIn PDF document text
- http://stepasidemedical.com/images/uploads/file/28674431319.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/74104646922.pdfIn PDF document text
- http://mylead-journey.mandiricareer.net/contents/files/sogifukanabewuwuwisuji.pdfIn PDF document text
- https://cryptobasics.biz/uploads/files/rawewubifogubix.pdfIn PDF document text
- https://infotechb2blite.com/bot/ckfinder/uf/files/6545382708.pdfIn PDF document text
- 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_off0000b072.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB072 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c884.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC884 | 15688 bytes |
SHA-256: a27c79b1941b6b37cb26a2268feb3f6e88879a91531e11a54e1fe861454e7175 |
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font_02_sfnt_off0000efd8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFD8 | 10320 bytes |
SHA-256: 73e4bf21ae046a6fd49ec17ebe5219de5ccdd2b45b3e863cf1186489f74c77df |
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