Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a827de75c207035…

MALICIOUS

PDF

56.5 KB Created: 2021-09-22 16:32:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 2547d1225b9855cf96ba0a11e63d8d04 SHA-1: ee7be148b7a5654238949c594d44c962e0e02683 SHA-256: 8a827de75c207035d2aec3ff4baa7a6facd1adde2f2562281efcf77daf35bc11
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by heuristics as a link farm. The ML classifier and ClamAV detection indicate malicious intent, likely to distribute further malware or engage in SEO abuse. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's part of a phishing or content distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7420

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://jiji.pgo.tw/pic/uploads/files/36479446738.pdf
    • http://swaving-stalinrichting.nl/ckfinder/userfiles/files/nerotigagilutime.pdf
    • http://cleannshieldflorida.com/wp-content/plugins/super-forms/uploads/php/files/f8c384f7229e73018791139fea702393/7716329520.pdf
    • http://findacommodity.com/upload/file/zuvenimomuxurolovijupu.pdf
    • https://officialbacknumber.com/editor_up/27453117801.pdf
    • http://mtcnx.com/upload/fckimagesfile/48368539660.pdf
    • https://jin-hung.com/userfiles/file/30606590068.pdf
    • http://swiftnb.com/ckfinder/userfiles/files/sewazinaxenivipasumafu.pdf
    • https://premiersuli.hu/files/files/53727367783.pdf
    • https://ekransamara.ru/files/61079340135.pdf
    • https://lotteppta.net/beta/assets/file/42528291051.pdf
    • http://indyztyle.com/ckfinder/userfiles/files/97133307571.pdf
    • http://cdjuchuan.com/upload/files/munemijulamusupivumim.pdf
    • http://drairtools.com/ckfinder/userfiles/files/zokewusitok.pdf
    • http://x-mobio.com/upload/files/9245317863.pdf
    • https://maryamghiasi.com/images/upload/files/weturesedopopajez.pdf
    • http://dreambeauty.kr/upload/fckeditor/file/21764796601.pdf
    • http://dlzhrjd.com/images/uploadfile/files/tuwenivotag.pdf
    • http://geodavidepini.it/userfiles/files/jivavujopuj.pdf
    • https://noursportevents.com/wheelmarine/userfiles/file/mavumijitafafudidibasafam.pdf
    • http://dlshixiang.com.cn/ckfinder/userfiles/files/14132095818.pdf
    • https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/ed64e0b053f4b151b2181d1875d71a24/6180605915
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=pokemon+leaf+green+cheat+codes+rare+candy

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