Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2033c926e733c47…

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 09:40:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 386024e7a766ebd3542111ad2b3e5f8f SHA-1: be5226473f0a448b4b05aadfbc592bf6fb083ec4 SHA-256: a2033c926e733c4749d4f892a16f435d13687d5c5fe71a4861215433d0df5aa0
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for free Robux, directing users to a URL that is likely malicious. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a call-to-action button further supports a phishing or malware distribution attempt. No scripts were extracted, but the document's structure and content indicate it's designed to trick users into visiting a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/free-robux-codes-no-human-verification-game-hack
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-free-spins-cash_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-hacks-for-coin-master_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-com-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-tiktok-followers-zonder-verification_GM835599320.pdf
    • http://perpus.poltekeskupang.ac.id//repository/roblox-hacks-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-minecraft-java-account_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-to-hack-coin-master-in-pc_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-server-free-trial_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/hack-coin-master-link_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/is-minecraft-free-on-computer_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id//repository/tiktok-ui-kit-free_GM835599320.pdf
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-windows-free_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id//repository/coinmaster-free-spins-link_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-to-hack-roblox-accounts_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-to-get-free-robux-on-phone-2021_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/actual-free-robux_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-3533-android-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-roblox-accounts-dantdm_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/best-free-hacked-client_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/hack-coin-master-online_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004f47.bin
1766326d8aa78203859071ffadb978130ab89d8d7f7c9343ecbe92d8e55b617d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F47 27364 bytes
font_01_sfnt_off00008c35.bin
7535c842b13f5ab09a8d1f6df205e44a1f60a7fdf3d88b4466f5e7b4ed5bfe6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C35 19032 bytes

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