Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4cc0f68faf292d5…

MALICIOUS

PDF

46.5 KB Created: 2021-06-09 17:25:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e5cfc77a2fccec6482c494447900fc74 SHA-1: 99eefb8b54b373eec80fba9d5090791f0c01c59f SHA-256: d4cc0f68faf292d534be32871de2632a85e3158473cf2602e9e020bd13983b89
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs, with one pointing to a suspicious domain associated with game cheats and hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of download-related lures and callback phishing elements further supports a malicious intent. The document likely serves as a lure to direct users to download malicious content or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/roblox-girls-clothing-cheats-game-hack
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-to-get-free-robux-by-doing-this_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-roebucks-com_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-do-i-get-free-robux-without-human-verification_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/2021-free-spins-coin-master-link_GM406889139.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-to-hack-robux_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-minecraft-mods_GM479516143.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/robux-free-com_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/hack-desert-treasure-quest-roblox_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-coin-master-spins-hack_GM406889139.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-robux-only-username_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-to-get-free-xp-in-pokemon-go_GM1094591345.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-robux-script_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/roblox-heroes-online_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/coin-master-pc-game-free-download_GM406889139.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/minecraft-pe-free_GM479516143.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/robux-generator-no-verification-2021_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/how-do-you-get-free-roblox_GM431946152.pdf
    • https://perpus.poltekkesgorontalo.ac.id/repository/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005351.bin
653855a834e45126e78b6a59b9c6738b9c6e744ac0b70cc7396bbba05f3a63ba		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5351 26412 bytes
font_01_sfnt_off00009205.bin
4be0d668204e593b7e35c2ee40f3a7131b9e9ca9eb240a3527f6ee5780b02a4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9205 18688 bytes

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