Malicious PDF — malware analysis report

Static analysis result for SHA-256 43e3eed10098959e…

MALICIOUS

PDF

49.2 KB Created: 2021-06-03 13:12:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 74f280353c0cfa2b796f859e32c2ced1 SHA-1: f6cce224ba1b5b9fca1b7d8f20bfffc69c1d4980 SHA-256: 43e3eed10098959e087e8233c358e2ce0dabbf4da76e6db5cf2253984e39c0a7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to websites promising game hacks and free in-game currency for popular games like Roblox and Coin Master. The primary malicious link identified is 'https://netcdn.online/app/431946152/how-to-hack-into-someones-roblox-account-game-hack'. This lure is designed to entice users into clicking through to a potentially harmful site, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/how-to-hack-into-someones-roblox-account-game-hack PDF link annotation
    • http://opac.stieimalang.ac.id/repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-spin-link-for-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/is-there-a-free-version-of-minecraft_GM479516143.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/woman-roblox_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • http://www.opac.stieimalang.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://opac.stieimalang.ac.id/repository/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004e31.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E31 28460 bytes
SHA-256: 83d3d03ec43dfd8657fd4d1e731d73414a627dbab42940cba2afb576793df1be
font_01_sfnt_off00008ef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF1 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009c02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C02 18852 bytes
SHA-256: e61c608513e4255ab8492ebba14a14bba84c9cdf9fdbd64ed05887b932178c19

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