Malicious PDF — malware analysis report

Static analysis result for SHA-256 d115577f8f101400…

MALICIOUS

PDF

35.4 KB Created: 2021-06-18 19:39:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 1229b6c719dee7c6b5a0f213709d81ce SHA-1: 1808d221d0a113cbce4f8db41c2535c916ee5ca9 SHA-256: d115577f8f1014001b1b2cf9aff22916e0f1601bb79203894e47337bc94f02e1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency for popular games like Roblox and Coin Master. The document contains numerous links to external websites, with a primary focus on http://netcdn.co/app/431946152/roblox-studio-free-download-windows-10-game-hack, which is flagged as a redirector for game hacks. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs suggests an attempt to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-studio-free-download-windows-10-game-hack PDF link annotation
    • http://ansacare.com/images/how-to-get-free-coins-on-tiktok_GM835599320.pdfIn PDF document text
    • http://ansacare.com/images/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/pubg-uc-generator-without-human-verification-2021_GM1330123889.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/free-coins-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://ansacare.com/images/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ansacare.com/images/hacks-to-get-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/coin-master-35-16-hack-apk_GM406889139.pdfIn PDF document text
    • http://ansacare.com/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/zeluc-roblox-exploit-hacks_GM431946152.pdfIn PDF document text
    • http://ansacare.com/images/tiktok-free-followers-instantly_GM835599320.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
font_00_sfnt_off0000312a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312A 22252 bytes
SHA-256: 606f3bdc8f743605b046405722524c15ec5bb31a246bede9e76cfe21ddf77bdd
font_01_sfnt_off000062f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F3 19812 bytes
SHA-256: 42b8dcead7b47b8d74ad9aaca7e8feb0a1420d02ea1d6d3958af7dc5c01f0da9

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