Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e14ca39ff299ef…

MALICIOUS

PDF

41.4 KB Created: 2021-05-16 01:33:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 47bf2f5178f61cb87e25328d71ee9b1e SHA-1: c191058e2f6010770093526f6c3c0484df031a08 SHA-256: 11e14ca39ff299ef83d1b1b67b7c96e868641edbf0bf62ed7454a2c767489362
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 0.9971

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/how-to-hack-coin-master-computer-game-hack PDF link annotation
    • http://handimanlibrary.org/repository/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/safe-hack-for-coin-master-android_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://handimanlibrary.org/repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
    • http://handimanlibrary.org/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://handimanlibrary.org/repository/free-robux-no-verification-or-survey-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
stream_003_off00004742.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4742 24592 bytes
SHA-256: c4046232e0ff670a3bb7aad64b7073010a5781c7f515fa41b3eee5f952acf93e
font_01_sfnt_off00007f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F15 18456 bytes
SHA-256: 0b5be2213ccbf3434597132f1910edc539f1187ea0f6416cb04f1f902ec4d5b3