Malicious PDF — malware analysis report

Static analysis result for SHA-256 d470f30d084bf009…

MALICIOUS

PDF

45.9 KB Created: 2021-05-16 04:50:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e1ebbd92fb33be15d8bd188de73be15e SHA-1: ab301a1cb11a1834fd5fd69da573c9797e85cd1b SHA-256: d470f30d084bf009374c136b48a7aa5bbab8d1cebe42ada2f9868b988f688177
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are designed as lures for game hacks and free in-game currency. The primary URL, https://netcdn.xyz/app/431946152/roblox-adopt-me-hacks-2021-game-hack, is directly linked to a 'free generator / game hack' lure. The ML classifier also flagged this PDF as malicious, supporting the assessment that it is intended to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/431946152/roblox-adopt-me-hacks-2021-game-hack PDF link annotation
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/change-roblox-username-free_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/robux-generator_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-spins-coin-master-app-iphone_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/play-full-version-of-minecraft-for-free-no-download_GM479516143.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-free-spins-link-facebook-page_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://shop.mercurytekindo.co.id/ckfinder/userfiles/files/coin-master-hack-mod-apk-unlimited-spins_GM406889139.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_003_off000047d8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D8 25260 bytes
SHA-256: a062bae61f16e08cd92d7951ae339d71b3734167caeb4203f6a8f57e9f58f080
font_01_sfnt_off00008243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8243 3452 bytes
SHA-256: 5a81b3406dfef0cfb61a7b99923216c6246da0e7c78996557fa6d5815406da87
font_02_sfnt_off00008db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DB5 19232 bytes
SHA-256: 0b867ffe8539eae71078bc89a561397ca2d87a89b617cad907cf467b0a006e5c

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