Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed924335292ff7d…

MALICIOUS

PDF

48.7 KB Created: 2021-06-03 05:55:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 87f420f7f6876c7c4f7c132e5c9fb09d SHA-1: 45827f74c026d9f0bf2316a5d67b794862ecb4f0 SHA-256: 2ed924335292ff7d22d95b07f4ec9f472e1793bc9b756bcf7729c4ef010c72aa
82 Risk Score

Malware Insights

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

The document contains multiple embedded URLs and a primary external URI that all point to sites offering game-related cheats or hacks. The presence of a heuristic indicating a 'Password-protected archive handoff' suggests the document is designed to trick users into downloading a password-protected file, likely containing malware. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/daily-free-spins-coin-master-heaven-game-hack
    • http://library.fikes.upnvj.ac.id/repository/actual-free-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-spin-coin-master-2021-link_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-generator-no-survey_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/pokemon-go-free-movement_GM1094591345.pdf
    • http://library.fikes.upnvj.ac.id/repository/www-bandicam-com-free-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/minecraft-windows-10-free-with-java_GM479516143.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-card-collection-hack-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/robloxfun-com-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/pokemon-go-free-friends_GM1094591345.pdf
    • http://library.fikes.upnvj.ac.id/repository/toolbox-for-minecraft-pe-ios_GM479516143.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-just-enter-username-and-password_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/como-hackear-el-juego-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/hack-coin-master-using-cheat-engine_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-minecraft-servers-to-join_GM479516143.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-roblox-credit-for-free_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/minecraft-building-hacks_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005305.bin
a572eb71808ebee5c46254a15f4748cafbbe8859746819dfc10ec6d84d945145		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5305 26808 bytes
font_01_sfnt_off00009159.bin
a0301b7f2c576e4a889a11eed4f4f7770c47239120b218cd3fd1d2cb36c2aaf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9159 2944 bytes
font_02_sfnt_off00009b82.bin
83c7106d652078d6845a2ce66abf209357cb05486614c7f7fe473a519aef161c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B82 18420 bytes

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