Malicious PDF — malware analysis report

Static analysis result for SHA-256 842e42344df0d99c…

MALICIOUS

PDF

17.5 KB Created: 2021-07-06 03:11:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 33bc8e41bfbce7b0f9dfb49466774d23 SHA-1: 0a35f7485d9f6ac86569c01ac738254f4f166cf7 SHA-256: 842e42344df0d99cad80b3117733a18aa819bdada28cbde2c6889addebefb5e7
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9966

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://netcdn.tw/app/479516143/minecraft-mac-free-game-hack PDF link annotation
    • http://library.stieyapan.ac.id//repository/roblox-download_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-ninja-animation-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-cute-roblox-tops_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-rape_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/pokemon-go-free-storage-upgrade_GM1094591345.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-hack-quora_GM406889139.pdfIn PDF document text

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