MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which are hosted on compromised or disposable domains, suggesting a link farm for phishing or malware distribution. The presence of embedded JavaScript and ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent. The document body is heavily obfuscated, preventing a clear understanding of its direct lure, but the overall structure and heuristics point to a phishing or malware delivery attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9875
Heuristics 8
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://mdbim.pl/ubezpiecz/obrazy/file/9155823201.pdf
- http://citranco.com/users/files/vinopujuvujepozabedumad.pdf
- http://24cvety.ru/upload/files/56399808928.pdf
- http://hk-sai.com/ckfinder/userfiles/files/46286732637.pdf
- http://omgmediatank.com/userfiles/files/1509241751.pdf
- https://dm288.rs/slicice/file/lewenisitepotuwawibupop.pdf
- http://aquatherm-graz.at/files/18064928489.pdf
- https://heks-tech.com/app/webroot/userfiles/files/14732031567.pdf
- http://scales-center.com/shop/fck_file/file/vegudavuramamodigu.pdf
- http://taxicityplus.ru/userfiles/file/89769607007.pdf
- http://xlpe.net/Images_upload/files/9219083229.pdf
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/16076eac8be338---tipupekupu.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160a05b1263393---5840430134.pdf
- https://topjobsnepal.com/ckfinder/userfiles/files/wadiwasamanakato.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1607454dce43d0---5428210866.pdf
- http://group-anons.ru/userfiles/files/97244367187.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c26bc82dfdd---44934871867.pdf
- http://harchovyk.com/userfiles/file/velof.pdf
- https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bd9b0a3bd75---89484960357.pdf
- http://factory-01.com/js/upload/files/fodeniwodeledokobilefusat.pdf
- https://nanosoft.mn/images/content/File/xopojolefikovenikomabuz.pdf
- http://phuocthuan.vn/images/pic/file/99300669883.pdf
- https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/runifirifodaf.pdf
- http://ghioroiu.ro/sites/default/files/file/sitesoxaberida.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16088ee8a2fbd6---zekukasulil.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b063f7ea4f3---juwonimus.pdf
- http://ddaengshop.com/ckupload/files/keleboled.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=create+your+own+yandere+simulator+skin
- 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_off0000f69b.bin8bdafaed662840318b07974468e9312e90951b9cdbded6adef6b9a75f4347c82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69B | 17656 bytes |
font_01_sfnt_off00012533.bin3548cccc413e727473d76eb281c68a5a1223397c8f3c4a7fd5a9d59915f86465 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12533 | 10832 bytes |
font_02_sfnt_off00013e49.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E49 | 16792 bytes |
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