MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised websites or disposable hosting, suggesting a phishing or malware distribution attempt. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs users to open a password-protected archive, a common tactic to bypass gateway security. The presence of embedded JavaScript further supports the malicious intent, likely to facilitate the download or execution of a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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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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 https://catamma.ru/uplcv?utm_term=zip+password+cracker+apk
- http://equipociclistaugeraga.com/ciclistas/userfiles/file/31108451909.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161386cb5ef9ae---44703069778.pdf
- https://ismart99.net/upload/files/50632173108.pdf
- http://medicalproduct.hu/images/files/99203061771.pdf
- https://autoteam.in/ckfinder/userfiles/files/dogasukamakazejabe.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/792eccbcd92bc4a74cf78ed2bd8d7bdc/watonede.pdf
- http://csim.jp/ckeditor/uploads/files/zidafetokisuraxetaximet.pdf
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/mujozegujejikitusazefow.pdf
- https://cemb.ca/upload/editor/file/sagukanizejezorijadivibes.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/c09c3bc46af4c6616fb8a31d52cc4c55/92632865656.pdf
- http://www.lukoilmarine.com/ckfinder/userfiles/files/65028084149.pdf
- https://imagebuzz.net/ckfinder/userfiles/files/povokubosovexopafagifuwo.pdf
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613762bf45afa---76756807710.pdf
- http://sk-uralstroy.ru/uploads/files/36504701225.pdf
- https://htapigroup3.com/contents/files/15686999235.pdf
- http://jiangsutravel.kr/userfiles/files/20210908_191837.pdf
- http://www.larucheapain.fr/ljk/file/31951002047.pdf
- http://24hnbc.com/assets/ckfinder/core/connector/php/uploads/files/wewenexovezelabovemawi.pdf
- http://fzcce.com/aimgs/uload/files/pibidikavogotibizenuzu.pdf
- http://cka-shiba.com/ckfinder/userfiles/files/85880753905.pdf
- https://rijst.nu/userfiles/file/95311672365.pdf
- http://eastindiaspray.com/suvra/eastindia_spray/files/tibotuwawitedelaboziv.pdf
- https://lesura.net/userfiles/file/bokofizimokekujituv.pdf
- http://renovfab-menuiserie.com/userfiles/file/91418518925.pdf
- https://www.ksmt.edu.np/assets/ckfinder/userfiles/files/wuritulediwut.pdf
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/zeluturodobopuli.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_off0000de09.bin4e30f073a8637ab88dd5e6fce367e83223506d3935e1a56de8125747552e7dae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE09 | 18468 bytes |
font_01_sfnt_off00010d46.bin66e1b37a7e1c8caad57115bef96de54d3ac0732e38f5df83572177dc5c48f1a0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D46 | 10400 bytes |
font_02_sfnt_off00012510.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12510 | 16792 bytes |
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