Malicious PDF — malware analysis report

Static analysis result for SHA-256 003c44841f42c07b…

MALICIOUS

PDF

33.2 KB Created: 2021-07-05 15:43:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d062dffb83fbda5d1c1b4845679520fe SHA-1: 8af371716354817044668e62a69fb3341762c813 SHA-256: 003c44841f42c07b2e574c9ab56af1f68c7884b3e3d688c43504dda6e6156558
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, designed to trick users into believing they need to complete a verification step to download content. The embedded URL points to a site offering game hacks, suggesting the document's purpose is to facilitate the download of potentially malicious software. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/479516143/minecraft-free-version-game-hack
    • http://perpustakaan.pn-raha.go.id/repository/roblox-adopt-me-hacks-2021_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-robux-safe_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-spins-coin-master_GM406889139.pdf
    • http://perpustakaan.pn-raha.go.id/repository/roblox-generator-no-human-verification_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/check-cashed-roblox-hack_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-coins-coin-master-daily_GM406889139.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-robux-download_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-roblox-cute-girl-outfits_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/roblox-hack-peoples-account-2021_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-shirt-roblox_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/how-to-hack-people-in-roblox_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/hack-roblox-paintball-frenzy_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/2021-no-human-verification-hack-for-coin-master_GM406889139.pdf
    • http://perpustakaan.pn-raha.go.id/repository/daily-free-spins-coin-master_GM406889139.pdf
    • http://perpustakaan.pn-raha.go.id/repository/free-robux-giveaway_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/daily-free-spin-coin-master-link_GM406889139.pdf
    • http://perpustakaan.pn-raha.go.id/repository/how-to-gift-robux-on-mobile_GM431946152.pdf
    • http://perpustakaan.pn-raha.go.id/repository/roblox-re_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fc3.bin
240e8b3d50b57baefcbb2eecdc7567713a14b9677ef01d6ab864b350b783dc99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC3 21880 bytes
font_01_sfnt_off00005f92.bin
6be78a61ab105c7d9991d7ed817040fa59b6933bf873ac938a74172a192409de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F92 18132 bytes

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