Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2fd6773a5574e55…

MALICIOUS

PDF

33.6 KB Created: 2021-07-08 00:37:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: b39ac043c82897bd6265dd54ecd3a344 SHA-1: 518c942cf9d65661bc2f7f5382bb9475b377e21f SHA-256: e2fd6773a5574e5583b1f3caeca57e699c6c227d62a506ae1e41b6169e267792
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text referencing game hacks and free currency for popular games like Coin Master and Roblox. The primary link, http://netcdn.tw/app/406889139/real-hack-for-coin-master-game-hack, is flagged as a lure for game hacks. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a social engineering tactic to redirect users to potentially malicious websites for downloads or further exploitation.

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/406889139/real-hack-for-coin-master-game-hack PDF link annotation
    • http://razredna-nastava.net/files/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://razredna-nastava.net/files/coin-master-hack-app-link_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/vip-roblox-free_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-roblox-money-maker-download_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/how-to-speed-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://razredna-nastava.net/files/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/join-and-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/how-to-get-free-robux-no-trading-no-getting-band_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • https://razredna-nastava.net/files/minecraft-free-version-pc_GM479516143.pdfIn PDF document text
    • http://razredna-nastava.net/files/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/free-shirt-copies-on-roblox_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/omg-insane-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://razredna-nastava.net/files/how-to-get-minecraft-for-free-on-laptop_GM479516143.pdfIn PDF document text
    • http://razredna-nastava.net/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://razredna-nastava.net/files/roblox-hack-may-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_off00002dd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD4 22968 bytes
SHA-256: fbf67cc7196577aca526dfee6bd9de12d15f6fea615b78d7acdeb0b5255bad2d
font_01_sfnt_off00006106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6106 18240 bytes
SHA-256: ce15f9055fc20859bd8720e1ae39843cc78e3a1a4d12ca4aefcaebee0b1ab8b2

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