Malicious PDF — malware analysis report

Static analysis result for SHA-256 f963f24725a4e2c3…

MALICIOUS

PDF

44.8 KB Created: 2021-06-10 16:44:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 52429df0f65c0fe56954c51aaa28e290 SHA-1: 6dd1fce5a2cded701ce63cf00e8970c1248a583e SHA-256: f963f24725a4e2c37f628aed8233b9ab4ac6852e9e477d244c6423ed9990e3a2
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains embedded URLs and a visual call-to-action lure, suggesting it is designed to trick users into downloading a secondary payload. The primary URL points to a resource related to game cheats, indicating a lure for gamers. The presence of multiple similar URLs reinforces the phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/change-money-in-roblox-using-cheat-engine-game-hack PDF link annotation
    • http://bressanassessoria.com.br/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/hacks-for-roblox-high-school-2_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-minecraft-java-edition-codes_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-coins-coin-master-today_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/vex0rmillion-hack-roblox_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-roblox-accounts-nbc_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005149.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5149 24832 bytes
SHA-256: 5772f006b9d036b6d850351640faa2efedbb5dfa7da61800d85da12ae7ccb824
font_01_sfnt_off000089b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89B4 19252 bytes
SHA-256: 89e56b76616b24909df404dffbc1b10e13a56586bf028be7027bc42703fd4bcb

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