Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c08858a3dd7659…

MALICIOUS

PDF

41.5 KB Created: 2021-09-17 06:12:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2c834b7de66b5b7c5d28ba42db329076 SHA-1: 8e444903d55eebf4cabd939273f8bf5e6d3975cf SHA-256: 93c08858a3dd76599ad0229c687858c1c12534b5303df1d564a860f18dd683cd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF is designed as a lure, presenting itself as an image to trick users into clicking a link. The link directs to a malicious PDF hosted on a compromised WordPress site, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7916

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF 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.
  • 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://mottaing.eu/userfiles/files/lekobapedetujekiwebabek.pdf
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/fe3e7169939512b00bdf8caee911f42e/55040371853.pdf
    • https://fullgame.hu/uploads/files/35492196072.pdf
    • http://hurtmar.pl/Upload/file/gadejup.pdf
    • https://channeloflove.com/ckfinder/userfiles/files/68641317372.pdf
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1613a48da00c78---vebet.pdf
    • http://kingspec.su/wp-content/plugins/super-forms/uploads/php/files/321muntrjdmv2fdor9a0umpu9e/gepigapujeza.pdf
    • http://mallenmediations.com/mallenmediations/images/userfiles/file/66110137744.pdf
    • http://ristoranteyuri2.com/userfiles/file/funobidezalekulurobijono.pdf
    • https://emons-verlag.com/testarea/cwsCMSlight/media/files/43231604297.pdf
    • http://31kouqiang.com/userfiles/file/1631301621.pdf
    • https://menu2uplus.com/images/file/97528532139.pdf
    • http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143253757100---22071275226.pdf
    • http://manhchenang.vn/webroot/img/files/dubiwumedabifexagewokexu.pdf
    • http://extrastyle.ee/ckfinder/userfiles/files/boxoxutefipolo.pdf
    • http://lg-palette.com/upload/files/lepubejipat.pdf
    • http://fusen-es.info/yamituki-n/uploads/files/93629250656.pdf
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/161420214b35c8---kovozabigadu.pdf
    • http://ipea.kr/userData/board/file/23775208908.pdf
    • https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/b9a73d2f4faf37f78e50f1bf2de0a4a5/mutunanozisowopobetuvove.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=beyblade+burst+game+hack

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