Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea468b941337b55d…

MALICIOUS

PDF

45.7 KB Created: 2021-06-08 15:20:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b610157f4a6600472934022b6d6c9928 SHA-1: a0e6363865fe63c605e5a3edd98195256b65e5d3 SHA-256: ea468b941337b55dd49d4b51e6fc92819663f783660539ebf3099a7e3705a017
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for 'Free Robux' and other game-related cheats, directing users to a URL that likely hosts a malicious payload. The ML classifier strongly flagged this PDF as malicious, and embedded URLs suggest a phishing or scam attempt. No scripts were extracted, but the overall pattern indicates a social engineering attack to trick users into downloading malware.

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/free-robux-bc-only-game-hack
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/mcpe-client_GM479516143.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/coin-master-game-hacking-tricks_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/free-minecraft-servers-to-join_GM479516143.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-april-2021_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/new-free-money-links-coin-master_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/get-me-robux-for-free_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master-2021_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/minecraft-cracked-client_GM479516143.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/builders-club-roblox-cheats_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-today_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/hack-robux-with-no-gift-card_GM431946152.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/wwwcoin-master-free-spincom_GM406889139.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/minecraft-xbox-360-free_GM479516143.pdf
    • http://elearning.minkotabukittinggi.sch.id/__statics/gudangsoal/files/roblox-free-wings_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000051f9.bin
122570123b47fa42453f5a458184d314d9bdd4d3a73d5460ff8214543040ef93		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51F9 26776 bytes
font_01_sfnt_off00009054.bin
51d3dbdf6f2a71f25b651c35137fc604ce9230ca6d235f04bb0214fe4b2aa18b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9054 18268 bytes

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