PDF malware analysis — malicious · 2761400c58819b56

MALICIOUS

PDF

50.4 KB Created: 2021-09-20 05:06:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)

MD5: dd80891ee3f36635f0d0fd4d44daf404 SHA-1: 5298014f62d3ff8e93560f1ff05843da78680747 SHA-256: 2761400c58819b56bf0bca544c06f481d87f84268f3f4534edfe51bf9c356a50

144 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. The heuristic 'PDF_IMAGE_LURE' indicates it's an image-only document with a clickable action, designed to trick users into visiting external URLs. The document contains numerous embedded URLs hosted on disposable domains, suggesting a link farm used for distributing malicious content or phishing pages. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.6843

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE

PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 50 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small 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.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One 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://oniceh.ru/uplcv?utm_term=antutu+benchmark+of+redmi+note+9s
- http://lexxyin.net/files/fckeditor/file/62790537056.pdf
- http://smogy.ru/files/files/bovopuziluwiladefeteziw.pdf
- http://mnwebdesign.dk/userfiles/file/71730768252.pdf
- https://fallsplat.se/bildbank/file/26725694579.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/akk82c79r046niiraa82p62ad6/mozenasotapefagi.pdf
- http://choragwica.pl/userfiles/file/xaxurepunoladirujuvem.pdf
- http://xn--o39a91gvwm83kbsn.com/FileData/ckfinder/files/20210916_CBA35BFC31C34C48.pdf
- http://vinhthuanvietnam.com/upload/files/58931409115.pdf
- http://furnitura-syndicat.ru/ckeditor/ckfinder/core/connector/php/uploads/files/59751258321.pdf
- http://sooclose.eu/upload/File/70937784809.pdf
- http://jar-ted.pl/file/36122324938.pdf
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161302555b0b05---webose.pdf
- http://nhatminhtrading.vn/app/webroot/uploads/files/6520581125.pdf
- https://ww150004.linebot.net/upfile/files/20210918020544.pdf
- http://www.pattyn360.com/upload/forum/files/31217955450.pdf
- https://ichapps.com/ichapps/ckeditor-ckfinder-integration/uploads/files/pikudexurulerabaneverarot.pdf
- http://kerrya.com/ckfinder/userfiles/files/fukunuzifugepugemof.pdf
- https://opescom-store.com/uploads/FCK_files/file/52789681662.pdf
- https://ambalatender.com/upload/files/zorerani.pdf
- https://www.bevillelecomte.com/ckfinder/userfiles/files/54601144235.pdf
- http://qbcar.ru/ckfinder/userfiles/files/rafaduvimeperida.pdf
- http://kiemdinhcan.com/Images_upload/files/29025150175.pdf

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