Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4a1e6803940bf9…

MALICIOUS

PDF

35.6 KB Created: 2021-07-05 05:51:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fdc01397e2d248d8452958107d05e0b6 SHA-1: cc00785e3039976a671b489d7f53123513c28b98 SHA-256: 7e4a1e6803940bf93a382e0d7e7f7ccfaf47aec6c41c1b1286675c62f783791c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains numerous embedded URLs and text lures related to free Robux and game hacks, indicating a phishing or scam attempt. The presence of a 'download button' heuristic and callback lure suggests the document aims to trick users into downloading further malicious content or engaging with a scam. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing and potential malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-robux-redeem-codes-game-hack
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/speed-hack-roblox-without-cheat-engine_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-hack-and-to-a-roblox-accounts_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-daily-spins_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/rocash-give-yourself-robux-cheat_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/youtube-link-to-roblox-jailbreak-hack-music_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-robux-codes-no-verification_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/minecraft-bedrock-free-download_GM479516143.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-free-spin-and-coin-link-app_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-free-spin-bonus_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-minecraft-capes-no-mods_GM479516143.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-spin-coin-master-game_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-coin-master-spins-blog_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-hack-anyone-on-roblox-2021_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/best-free-spin-app-for-coin-master_GM406889139.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/free-admin-commands-roblox-exploit_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://alazhar-university.ac.id/aplikasi/perpustakaan/repository/how-to-get-a-free-dom-crown-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003352.bin
dfbc7ed9f242304ccf62a15b4e6b7431489ab56aed41c7d1e8a595b4c571c708		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3352 22676 bytes
font_01_sfnt_off00006612.bin
2beb9c583ef49ea143b974913017cf2f00d835df8237c6c52447211218059ebd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6612 19152 bytes

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