Malicious PDF — malware analysis report

Static analysis result for SHA-256 0183909253a22487…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 11:29:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ce3edc68cb8eb9226915fce329775514 SHA-1: d7244fd2f5f4f193ae709edf789598b58461bcf4 SHA-256: 0183909253a2248700acd5ecd82c5e29c9473be9af93d2302bb7fc3c06963318
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 0.9983

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.tw/app/406889139/coin-master-70-spin-link-game-hack PDF link annotation
    • https://www.cinemapalace.ro/trailer/files/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-roblox-for-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-make-yourself-look-like-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-robux-android_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-tiny-tanks-hack-for-rocket_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/best-roblox-free-clothes_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/noto-clip-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-morph-gui-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-2021-download-free_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-robux-with-cheat-engine-2021_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
font_00_sfnt_off00003183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3183 22736 bytes
SHA-256: c39bc4c1c7f12faa1f2215486633cef1392414972c2c7d3ca4fc22661255031b
font_01_sfnt_off00006476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6476 18408 bytes
SHA-256: 316924fe7a637b0af78a439fcac8455cfd3756d9fde101b7ffeceeaf4bf174e0