Malicious PDF — malware analysis report

Static analysis result for SHA-256 4da9a0573be95b4e…

MALICIOUS

PDF

46.2 KB Created: 2021-06-09 10:00:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6f4f5c59f05627292fd29633ac54c7c9 SHA-1: 30ee38273b3d9c15af7b45907b93ad4f942a6e02 SHA-256: 4da9a0573be95b4eccf2d6e29e14bc729738ffb5394ca3a5ae1eef58cba350b6
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to obtaining free in-game items for popular games like Roblox and Coin Master. It includes an external URI pointing to a suspicious domain, suggesting a phishing or malware distribution attempt. The presence of a visual download button heuristic further supports the malicious intent of directing users to download content.

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.tw/app/431946152/how-to-get-any-game-pass-for-free-roblox-game-hack
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/freecoins_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-haktuts_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/cheat-codes-for-coin-master_GM406889139.pdf
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-codes_GM431946152.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/roblox-earn_GM431946152.pdf
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-for-202100-20210-robux_GM431946152.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/100-hack-coin-master_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spins-hack_GM406889139.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdf
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/real-free-robux-generator_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000052b9.bin
e93f6559c1edddaea999d583ed4291f99c37970e0bf41b058b3ba4607402c6e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52B9 26600 bytes
font_01_sfnt_off00008ff8.bin
68046698f5fd59caf20e4b1c30b4efb3bff91fcf2fe71c5aba334e4f4a82174e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF8 19036 bytes

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