MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to multiple domains, many of which are associated with compromised CMS uploads or disposable hosting, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users into downloading further malicious content or visiting phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://dongkoo.com/uploads/editor/files/felitatujupisiramo.pdf
- http://ahzgbh.news-read.com/upload/files/wiroxaja.pdf
- http://quangcaosms.org/media/ftp/file/bawibeziwupesuvureni.pdf
- http://budapesticukraszdak.hu/userfiles/files/vugiw.pdf
- http://packagingandfoodmachinary.com/userfiles/file/38699391126.pdf
- https://iqmuseum.mn/uploads/files/guwififapodod.pdf
- https://nocenzura.space/web/img/podborky/files/kesusewajeginajurazidu.pdf
- http://kocavietnam.com/upload/files/79036278784.pdf
- http://learningkey.org/userfiles/guwafabotatuxu.pdf
- http://aviteksural.ru/admin/ckfinder/userfiles/files/16966334549.pdf
- https://xn--78-6kce7dfhb9dwb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/b4399feddf554b3e98014bac8f0fad11/setadasufujexok.pdf
- https://rrr71.ru/upload_picture/65438852738.pdf
- https://kingyao.com/uploadfiles/files/20210912_050745_9735.pdf
- https://imihwa.com/uploads/image/20210911/files/20210911075243.pdf
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/0954daf4d076b632fc4889c51dd825f2/popar.pdf
- http://vidol.nl/userfiles/file/34596734453.pdf
- https://rumputhijau.com/contents/files/senomewokanorixonap.pdf
- http://viswinkelindex.nl/images/uploads/pobadunawomiwukosudukidix.pdf
- http://lmleadmanagement.com/userfiles/files/pirizagevizofenodonujava.pdf
- http://3e3i.com/UserFiles/file///vuxabizatekizob.pdf
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613cdcdc9d0c7---57784646982.pdf
- https://newshieldinsurance.com/demo/gsa/final/images/file/tinisub.pdf
- http://www.ondebiz.com/userfiles/file/purofomer.pdf
- http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b37d3985e9---57522564507.pdf
- https://bushregenerators.net/userfiles/files/40962172435.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=download+software+apk
- 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_off0000d0e4.bin17e62ed2aa96fb3a1f366b00ca44a877cb40239f121e9ce67ca60919b07e1001 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD0E4 | 18072 bytes |
font_01_sfnt_off0000ff97.bina2d5c21e1e883549aff891ed00300cc61054422587885b2f841b9d10235f701d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF97 | 10580 bytes |
font_02_sfnt_off000117f1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117F1 | 16792 bytes |
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