Malicious PDF — malware analysis report

Static analysis result for SHA-256 616f7c98d44b5387…

MALICIOUS

PDF

33.9 KB Created: 2021-07-19 10:56:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 16ac9201814edc88fa40bc1182c5721d SHA-1: 078847812c637c4bddcf851657b8325c6e8a80de SHA-256: 616f7c98d44b5387ccd0f141292e0404da243b5fa7ee472f135707f383311183
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action button, strongly suggesting a phishing or scam attempt. The primary URL, http://netcdn.tw/app/835599320/free-tiktok-likes-game-hack, is likely the destination for a malicious payload or further phishing content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/835599320/free-tiktok-likes-game-hack
    • https://magistrinfo.ru/images/tiktok-fans-free_GM835599320.pdf
    • https://magistrinfo.ru/images/free-tiktok-followers-app_GM835599320.pdf
    • https://magistrinfo.ru/images/coin-master-free-spins-link-2021_GM406889139.pdf
    • https://magistrinfo.ru/images/get-free-likes-on-tiktok_GM835599320.pdf
    • https://magistrinfo.ru/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
    • https://magistrinfo.ru/images/best-minecraft-hacks_GM479516143.pdf
    • https://magistrinfo.ru/images/minecraft-pe-free-ios_GM479516143.pdf
    • https://magistrinfo.ru/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://magistrinfo.ru/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdf
    • https://magistrinfo.ru/images/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003073.bin
b93710e4886c6f8690e2cc932e01ee98db1a2f7543452754878e1eb507f5d4f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3073 23300 bytes
font_01_sfnt_off0000653d.bin
90aab8e20699190043af8c1921cf798ffa728f6e874bf4804f87169ad62e4652		 pdf-font-stream PDF embedded font (sfnt) at offset 0x653D 17456 bytes

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