Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49564cce134cbd1…

MALICIOUS

PDF

63.7 KB Created: 2021-09-30 21:01:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: 0b716e7e6f50837bc21784479f7b3955 SHA-1: b9fa723d4d6d84fde9796bb58a8ffd68a1b963ad SHA-256: c49564cce134cbd1d7f486ca4e83e5c2e54dc437bb52bb20cdd64bd6c672dc69
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm. The ClamAV detection and ML classifier indicate malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and URL patterns suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5541

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 http://xn--k1akb4c.xn--p1ai/userfiles/file/20589013627.pdf In PDF document text
    • http://cybernet.asia/UserFiles/File/7224268505.pdfIn PDF document text
    • https://marlin-aquarium.ru/ckfinder/userfiles/files/94062558367.pdfIn PDF document text
    • https://www.restaurant-latableedevercel.com/ckfinder/userfiles/files/mabipatobujowupimalenikej.pdfIn PDF document text
    • http://cgl.lu/userfiles/files/kuwige.pdfIn PDF document text
    • http://mnwebdesign.dk/userfiles/file/33187340382.pdfIn PDF document text
    • https://onutglen.com/caningest/images/file/lukulurinovevovaso.pdfIn PDF document text
    • http://deaprogettazioni.it/userfiles/files/zijukulifa.pdfIn PDF document text
    • http://weighlessthisyear.com/ckfinder/userfiles/files/bilojozuzunazowudakowe.pdfIn PDF document text
    • https://carlojans.com/cms/file/68050485640.pdfIn PDF document text
    • https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/94202443983.pdfIn PDF document text
    • http://findacommodity.com/upload/file/lorisarafupowulufuwaxus.pdfIn PDF document text
    • https://regalcabs.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb88fe1476---nokevataninuvunuvoda.pdfIn PDF document text
    • http://mega-stainlesssteel.com/uploads/image/files/figovozikixobukedelereg.pdfIn PDF document text
    • http://innovatepc.com/userfiles/file/rumupitefipukitevofe.pdfIn PDF document text
    • http://geologocarmignani.com/userfiles/files/17658679993.pdfIn PDF document text
    • https://www.gurgy.net/ckfinder/userfiles/files/suwolapivuguro.pdfIn PDF document text
    • https://onlineadda.organicemall.com/ckfinder/userfiles/files/16142890082.pdfIn PDF document text
    • http://sky1981.com/asset/uploads/files/davobun.pdfIn PDF document text
    • http://thibidi.vinadesign.info/uploads/images/files/magawitewalomo.pdfIn PDF document text
    • http://stowarzyszeniemalyksiaze.eu/img/upload/files/xovutoxakufamebaxizor.pdfIn PDF document text
    • http://chieusangducphat.com/uploads/userfiles/file/geredujusadikijawawiret.pdfIn PDF document text
    • http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/9ed2c6d3d1da3ea5702b04486c178690/jukesulimupawaritesalide.pdfIn PDF document text
    • https://obermeyer-modemarkt.de/upload/file/xotewi.pdfIn PDF document text
    • http://www.temaricerca.com/entry2013/admin/ckfinder/userfiles/files/61552133827.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=gta+advance+gba+downloadPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB286 15308 bytes
SHA-256: 91bea693b8d5fc43bd0f526e7f420e535130792a7c219759e83ed298708df29e
font_01_sfnt_off0000d89a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD89A 10516 bytes
SHA-256: 61be1be70631b93f62016a97013f5797f84dfd7a2977b4fe53893dd46ed693d4

Open this report in the interactive analyzer, or submit your own file for analysis.