Malicious PDF — malware analysis report

Static analysis result for SHA-256 10261367c14231d0…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 04:48:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 09a640b69cfd298e20ae1b57395b4fd5 SHA-1: 130af82276aea1c11bb3d39ed74cefb96f4e7fb1 SHA-256: 10261367c14231d0657b1cb94ef8ba0ff0ef8af689a3ad25f865fa0601855d9a
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 0.9980

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.tw/app/479516143/minecraft-education-edition-free-download-game-hack PDF link annotation
    • https://www.sonestad.se/library/repository/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-change-robux-pastebin-hack_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-roblox-followers_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-cheat-in-roblox-rpgs_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/optifine-mcpe_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/gamehunters-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-attacks-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-download-ios_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-codes-on-tablet-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-followers-for-tiktok_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
stream_002_off0000322c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x322C 22848 bytes
SHA-256: 199104f3edc5081db0ba3fd9da6386cef40120fb8e9173a69b2b266149a68d9c
font_01_sfnt_off00006564.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6564 18720 bytes
SHA-256: 1332db7e135f7bfb76e809d6c2e8d7d2fa6fdd2f7188446e7190a10c127a21d6

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