Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fda504aef9dac73…

MALICIOUS

PDF

33.9 KB Created: 2021-07-19 05:10:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b24cdd24960254fed418c12c08d8ea80 SHA-1: f39f582fa077b5261d62ab5ca38fcf6ac7df8bae SHA-256: 7fda504aef9dac73e23e119f0ffdc200078f9e1590190fc70d5327c914c0db0c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free codes, directing users to external URLs for downloads. The ML classifier strongly flagged this PDF as malicious, and embedded URLs point to suspicious domains. The document body and embedded links suggest a phishing attempt to trick users into downloading potentially malicious files disguised as game cheats.

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/479516143/minecraft-realms-free-codes-game-hack
    • http://archi-z.ru/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • http://archi-z.ru/images/robux-hack-generator_GM431946152.pdf
    • http://archi-z.ru/images/how-to-get-free-tiktok-likes_GM835599320.pdf
    • http://archi-z.ru/images/can-you-make-a-minecraft-server-for-free_GM479516143.pdf
    • http://archi-z.ru/images/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://archi-z.ru/images/minecraft-login-free_GM479516143.pdf
    • http://archi-z.ru/images/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://archi-z.ru/images/is-it-possible-to-get-free-robux_GM431946152.pdf
    • http://archi-z.ru/images/coin-master-free-spins-link-today-instagram_GM406889139.pdf
    • http://archi-z.ru/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000305f.bin
f0cb4a68a303f419e59997b0608f024768f9b83c107009abbe98a57e7443e61e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x305F 22740 bytes
font_01_sfnt_off00006318.bin
30a8f83054e231b1bb485b1ca025b33fda8ee43bcea67b958af1de796f39c45f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6318 18216 bytes

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