Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc3fa964b3108f8…

MALICIOUS

PDF

44.7 KB Created: 2021-06-08 10:10:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: eedc61270c33f1cf0d5061ce7bd29ace SHA-1: ac324a1b822700dfc716e9611e0b35b32f23b322 SHA-256: fcc3fa964b3108f8ce4228b6b9f84e610bca513c0f56b2f3eeb8c291e1fbb43f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document is a PDF that contains embedded URLs and a call-to-action lure, suggesting it is part of a phishing campaign. The ML classifier strongly flagged this PDF as malicious. The presence of a password protection lure indicates an attempt to bypass security controls by encrypting a payload. The document's content and embedded URLs point towards a scam related to game hacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/pick-a-side-hack-roblox-game-hack
    • http://library.unissula.ac.id/fk//repository/coin-master-online-hack-no-human-verification_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/master-free-spin_GM406889139.pdf
    • http://library.unissula.ac.id/fk//repository/free-tiktok-email-and-password_GM835599320.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-pet-food-free_GM406889139.pdf
    • http://library.unissula.ac.id/fk//repository/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/robux-robux_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/2021-no-human-verification-hack-for-coin-master_GM406889139.pdf
    • http://library.unissula.ac.id/fk//repository/coin-master-free-coins-link-2021_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/pokemon-go-free-pokecoins-no-human-verification_GM1094591345.pdf
    • http://library.unissula.ac.id/fk//repository/minecraft-mod-menu-apk_GM479516143.pdf
    • http://library.unissula.ac.id/fk//repository/roblox-got-talent-piano-hack_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/coin-master-free-spins-and-coins-link-haktuts_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/hack-master-coin-pc_GM406889139.pdf
    • http://library.unissula.ac.id/fk/repository/ways-to-get-robux_GM431946152.pdf
    • http://library.unissula.ac.id/fk//repository/coin-master-strategy_GM406889139.pdf
    • http://library.unissula.ac.id/fe/repository/what-do-points-do-in-roblox_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/free-robux-accounts-2021_GM431946152.pdf
    • http://library.unissula.ac.id/fk/repository/irobux-com-redeem_GM431946152.pdf
    • http://library.unissula.ac.id/fe/repository/coin-master-free-spins-ios-2021_GM406889139.pdf
    • http://library.unissula.ac.id/fk//repository/minecraft-116-apk-download_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050cb.bin
cb5ed0b05db39992cf0a2d086adb585dc605d4f9493a0f81150768ace8610eda		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50CB 26208 bytes
font_01_sfnt_off00008b3a.bin
058304e33e633e22b9b23c305d1f2d5d9de404bada6c24a43be2a30ae9e335d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B3A 18628 bytes

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