Malicious PDF — malware analysis report

Static analysis result for SHA-256 de56fb6b885c6dfd…

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 00:06:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 481940123d6aeb37847a7fd1fdf49c91 SHA-1: e30b74aea4abf50b0305c92cfe5f87a633f97ad4 SHA-256: de56fb6b885c6dfd726640ef8d08e7aa3a5ed13d643cdba0059466d1a2256572
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document body and extracted URLs indicate a lure for game-related cheats and hacks, suggesting a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the presence of embedded URLs and the document's theme point towards a malicious workflow, likely involving the download of a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/how-to-hack-coin-master-game-hack
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/minecraft-pe-mod-menu_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/roblox-arsenal-hacks-download_GM431946152.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/coin-master-free-spin-download_GM406889139.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/free-minecraft-account-and-password-generator_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/minecraft-free-download-laptop_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-free-download-for-android_GM406889139.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/coin-master-hack-2021-no-human-verification_GM406889139.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/hack-coin-master-no-survey_GM406889139.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-1-coin-master_GM406889139.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/free-minecraft-printables_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/roblox-free-accessories_GM431946152.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/free-100-robux_GM431946152.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/coin-master-daily-spins_GM406889139.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/lazyblox-com-free-robux_GM431946152.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/minecraft-survival-free_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/minecraft-packs-free_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/how-can-i-get-minecraft-for-free_GM479516143.pdf
    • https://elearning2.mamaarifalmuhtadi.sch.id/__statics/gudangsoal/files/free-spins-for-coin-masters_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004cd9.bin
e03d94396f0730ec5bcde08551fb5bb2a26831fcac94f5a34b1e8df36fb1c25c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD9 25516 bytes
font_01_sfnt_off00008600.bin
811ddb8557bc0f5be85009fa6d5ae0baa2b7fc09c58d91c5790597872cecd122		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8600 17880 bytes

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