Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c1e12c16beb2436…

MALICIOUS

PDF

44.3 KB Created: 2021-05-30 16:43:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ab4a1a928613eadf73c35939d6ccf54c SHA-1: c9494cbcd924f4bc22001d8e0f12b16e8cf9846b SHA-256: 9c1e12c16beb243646e4d18a6dc48d468297c43ca74ececbba5bf70176ea845e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for free in-game currency and hacks, directing users to a suspicious URL. The embedded link, 'https://netcdn.xyz/app/406889139/free-spin-coin-master-2021-link-game-hack', is a primary indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to redirect users to potentially malicious content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9580

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/free-spin-coin-master-2021-link-game-hack PDF link annotation
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/lazyblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/minecraft-windows-10-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-tiktok-fans-and-likes_GM835599320.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-views-tiktok_GM835599320.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.plumes.it/wp-content/uploads/fsqm-files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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_off00005361.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5361 23796 bytes
SHA-256: c0cecdef80e0c3e55dcf89cdf35fc9f0aacde788e5c6f76b26ff72c220ed4eef
font_01_sfnt_off0000897b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x897B 18456 bytes
SHA-256: 7500aca679d0fadfbda1e17cf023a195ee80a601fef81e7f7ced8cf50182af56