Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e63f41dee26681d…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 07:59:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 507ff9e54b10bebc34562b9eafe7e568 SHA-1: 02c2f99a9157a2e58f918e736e26704685895c87 SHA-256: 5e63f41dee26681df54a5377be320e23bd30557411f1e2124844b88995f75b4f
82 Risk Score

Malware Insights

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

The document contains multiple URLs and a prominent external URI pointing to sites offering game hacks, suggesting a lure for users to download potentially malicious files. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may instruct users to provide a password for an archive, a common tactic to bypass security scanning. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/roblox-hack-no-verification-no-survey-game-hack
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-dress-up_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/hack-coin-master-for-iphone_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-account-cracker_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-group-roblox_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/pls-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-redeem-code-genartor-no-survey_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-one-piece-ultimate-hack_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/boku-no-roblox-remastered-hack-money_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-fix-cheat-engine-66-roblox-shutdown_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-hack-prison-life-download_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-robux-hack-no-password_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-login-hack_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-lumber-tycoon-hack-lua-c_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/arsenal-hacks-roblox-2021_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-coins-and-spins-for-coin-master-game_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-free-download-pc-microsoft_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-hack-spins-free_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/hack-5-2021-de-roblox-jailbreak_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031c4.bin
68e2d7108177873958d2727ba284b53af5e96ebe31683ebd7393625a7bf58479		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31C4 22212 bytes
font_01_sfnt_off000062f8.bin
26a91340589166394c324b513012f4cf2932e0fc567b3bc44d212261f3862b51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62F8 19260 bytes

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