Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a88e30c647ee7a4…

MALICIOUS

PDF

30.8 KB Created: 2021-07-19 01:46:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 60242a68dd1b80ffeec9e96ab293a2de SHA-1: 619f06913f6aba1359405fd8f05010df3dc6a161 SHA-256: 2a88e30c647ee7a4feb2668d986264df57969391c9d588d1e7cf264814332905
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 phishing or social engineering attempt. The document body explicitly mentions 'Minecraft For Free On Phone' and includes a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' link, indicating a lure for a game hack. The presence of multiple suspicious URLs further supports this, with the primary one being http://netcdn.tw/app/479516143/minecraft-for-free-on-phone-game-hack. While no scripts were explicitly extracted, the ML classifier and URI findings indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9515

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.tw/app/479516143/minecraft-for-free-on-phone-game-hack
    • https://magistrinfo.ru/images/robux-com-free_GM431946152.pdf
    • http://magistrinfo.ru/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://magistrinfo.ru/images/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • https://magistrinfo.ru/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://magistrinfo.ru/images/minecraft-pe-free-ios_GM479516143.pdf
    • https://magistrinfo.ru/images/free-spins-and-coins-for-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000283d.bin
4a50e10fc5aaa9a98fbba5ef6278a317a2f01b15c7c7ce33df7ed6fbcda36f6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x283D 21676 bytes
font_01_sfnt_off0000578d.bin
03f24e9b7df13ddf2a61f787c3fe001e8b6ca75c509430b262bdd287118d54e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x578D 18032 bytes

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