Malicious PDF — malware analysis report

Static analysis result for SHA-256 fbcf5e0774530c14…

MALICIOUS

PDF

34.7 KB Created: 2021-06-22 09:57:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: bf8872d315f672ae6a873a22d2c75567 SHA-1: e39d566e04469676b1b8fa3777b0e9e574f4a2b3 SHA-256: fbcf5e0774530c14ea311d7a40144404a730443b1cc193d25e80c04be34ab5fa
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, strongly suggesting a lure to download potentially malicious software. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL points to a 'minecraft-hack-client-download'. No scripts were extracted from this sample, but the presence of embedded URLs and the document's content indicate a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/479516143/minecraft-hack-client-download-game-hack
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins-hack_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-heaven-daily-free-spins_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coinmasterhack-club_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/roblox-a_GM431946152.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-domain-for-minecraft-server_GM479516143.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/robux-fun-hack_GM431946152.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/robux-free-robux_GM431946152.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/free-coin-master-hacks_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/dominus-roblox-free_GM431946152.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/hack-coin-master-dzooka_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-free-link-spin_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-hacks-for-android_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-pro-hack_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/minecraft-hacked-client-18_GM479516143.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/daily-coin-master-free-link_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/minecraft-free-app_GM479516143.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/get-minecraft-for-free_GM479516143.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-hacks_GM406889139.pdf
    • https://mansurabaya-elearning.usmart.id/__statics/gudangsoal/files/coin-master-free-spins-hack-iphone_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000329f.bin
eaccebfa9d7eeb58a37ba07df6e724b03e765e58caf9b0b3cc2c1daccadb27d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x329F 22236 bytes
font_01_sfnt_off000063b5.bin
c45ee2d1dd43e8513d66b509938ceb122ec1fdfa533c8cde096dea51f38d5c86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B5 18748 bytes

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