Malicious PDF — malware analysis report

Static analysis result for SHA-256 e225b2f00dc98c1a…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 06:06:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 5767e3114b2b81f69d7a4878c3e1023a SHA-1: 7acc8261aa6f3a5d5b21e39b98559ff2708dc3d1 SHA-256: e225b2f00dc98c1ae78944014d9bafdf440626ed47f3469d97542e58d9ebcd20
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/arsenal-hacks-roblox-game-hack PDF link annotation
    • http://lib.icbc-indonesia.org//repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-tiktok-jelly-fruit_GM835599320.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/tiktok-for-free-textbooks_GM835599320.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/como-hackear-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/fb-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://lib.icbc-indonesia.org//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.icbc-indonesia.org/repository/coin-master-hack-apk-2021-download_GM406889139.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_004_off00004ee0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EE0 29612 bytes
SHA-256: 1826d228e18619883682d33081d16e2f42b27be9af58f252fd20166a9409308b
font_01_sfnt_off00008efe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EFE 18184 bytes
SHA-256: a3c2357e5f06b76da12fb87e71b44d24867f9c5d578f41f931a6caf721fbec94

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