Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d2dbeacd47f1c9c…

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 11:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: fa9ac583cb3ab2d80d46e87a37fc6ace SHA-1: 6dd55776a516d077257f6e94628d2f82009ec55c SHA-256: 1d2dbeacd47f1c9cc55addcdd2f6bab85a1915ae848dc9280ec4649ca13200df
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to websites offering game hacks and cheats for popular mobile games like Coin Master and Roblox. The primary URL, http://netcdn.tw/app/406889139/coin-master-hack-ios-game-hack, is flagged as a game hack redirector, strongly suggesting it leads to malicious content or a phishing site. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a lure-based attack designed to trick users into visiting potentially harmful sites.

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/coin-master-hack-ios-game-hack PDF link annotation
    • http://perpustakaan.poltekom.ac.id/repository/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-hack-roblox-with-inspect_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/advhaa-roblox-free_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/r17-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/i-think-someone-tried-to-hacked-my-roblox-account_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-do-you-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/descargar-roblox-hackeado-para-android-apk_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/tycoon-money-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/how-to-kick-in-free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/adopt-me-hack-tool-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/games-for-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/i-want-to-grow-my-account-tiktok-free_GM835599320.pdfIn PDF document text
    • http://perpustakaan.poltekom.ac.id/repository/coin-master-free-spin-daily-bonus_GM406889139.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_off000033cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33CC 23232 bytes
SHA-256: b8f3ef0b858f8d87e962c805a08f4ee3fa7a0abca80894bba98a2fbdd8723828
font_01_sfnt_off00006846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6846 18004 bytes
SHA-256: f707d2c5311b1c23f03cdd9efaf3cc277ed0340dfe459cceb48b9dada5dc554b

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