Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6c595435ae10a1d…

MALICIOUS

PDF

41.2 KB Created: 2021-05-16 11:44:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0b7a44b13bc7c6214429f9d7e33e5dca SHA-1: db6d89ea85ab6f988423f4414161527a2620b4e4 SHA-256: f6c595435ae10a1d30625b41a0c19840c7f70e581cf66ce975654749043c02c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a prominent link disguised as a game hack lure, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document's structure and embedded links indicate a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://netcdn.xyz/app/406889139/get-free-gold-cards-in-coin-master-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-food_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-dungeons-free-download-pc_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-account-taker_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hack-cheat-engine_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/robux-free-online_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-free_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-spins-in-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000047a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47A1 24940 bytes
SHA-256: 6ec0a3c82ac2f05425216f6c7bd252101cb53e5719ebc17595537130f5f1be65
font_01_sfnt_off00007f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F84 17960 bytes
SHA-256: f869bc891c1b65231b6187b5c2b301482ba9b67ab65507215d31018b67534d9f