PDF malware analysis — malicious · bcc10d97a021430c

MALICIOUS

PDF

46.9 KB Created: 2021-06-09 04:56:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 631d873c9fdc7cce7f02ad1d7fbbad72 SHA-1: c794eb2d05f09147558a74a36f24401eef800b3b SHA-256: bcc10d97a021430c563f6c5f12f48567e8dea3c137489f966d324b1d1ac79f85

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The document uses a social engineering lure, presenting itself as a free game download to trick users into downloading a malicious file. The embedded URLs point to suspicious domains that host further malicious PDF files, likely serving as a downloader for a second-stage payload. The ML classifier also flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

Heuristics 4

Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE

Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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.tw/app/431946152/free-download-game-roblox-full-version-game-hack
- https://fib.ub.ac.id/sac/repository/hack-programm-for-roblox_GM431946152.pdf
- https://fib.ub.ac.id/sac//repository/free-robux-hack-no-verification_GM431946152.pdf
- https://fib.ub.ac.id/sac/repository/picture-roblox_GM431946152.pdf
- https://fib.ub.ac.id/sac//repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdf
- https://fib.ub.ac.id/sac//repository/how-to-get-free-roblox-money_GM431946152.pdf
- https://fib.ub.ac.id/sac/repository/fan-page-coin-master_GM406889139.pdf
- https://fib.ub.ac.id/sac/repository/free-spins-coin-master-2021_GM406889139.pdf
- https://fib.ub.ac.id/sac/repository/hackear-coin-master-sin-root_GM406889139.pdf
- https://fib.ub.ac.id/sac//repository/free-robux-no-verification-2021_GM431946152.pdf
- https://fib.ub.ac.id/sac//repository/tiktok-free-like-and-views_GM835599320.pdf
- https://fib.ub.ac.id/sac//repository/coin-master-hack-without-verification_GM406889139.pdf
- https://fib.ub.ac.id/sac//repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdf
- https://fib.ub.ac.id/sac/repository/robux-game-com_GM431946152.pdf
- https://fib.ub.ac.id/sac//repository/coin-master--hack_GM406889139.pdf
- https://fib.ub.ac.id/sac/repository/free-spins-for-coin-master-ios_GM406889139.pdf
- https://fib.ub.ac.id/sac//repository/free-roblox-executor-no-key_GM431946152.pdf
- https://fib.ub.ac.id/sac/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdf
- https://fib.ub.ac.id/sac/repository/how-to-coin-master-spin-hack_GM406889139.pdf
- https://fib.ub.ac.id/sac/repository/minecraft-games-free-to-play-online_GM479516143.pdf
- https://fib.ub.ac.id/sac/repository/coin-master-heaven-links_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000543a.bin` `40caee398a1d0d96be26c79467294b03058a749128958d0551d2bdfb724790ad`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x543A	26956 bytes
`font_01_sfnt_off000091a0.bin` `dda9cbef4a4767cd3400e9e3ac49a8be3d272c19f00a1492a6acdb5f1a1861ca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91A0	19336 bytes

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