PDF static analysis report

Static analysis result for SHA-256 1838adde1804e87e…

SUSPICIOUS

PDF

44.1 KB Created: 2021-06-09 00:14:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bb4b27c1729831a11e18966ae52a1130 SHA-1: 1e0d5c19e6a7d0683769c7d8e2363cbf28e81800 SHA-256: 1838adde1804e87e6e7f6bfb42ecefa8263f5cde52caed76f4941459f091c0c6
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded URLs and a document body that explicitly mentions 'Free Robux' and provides a link to a download. The ML classifier also flagged this PDF as malicious. The presence of these elements strongly suggests a social engineering attack aimed at tricking users into downloading a payload, likely related to game cheating or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 3

  • 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-v3rmillion-site-v3rmillion.net-game-hack PDF link annotation
    • http://bressanassessoria.com.br/images/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-tiktok-likes-app_GM835599320.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/how-to-get-free-robux-on-mobile_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-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-roblox-gift-card-pins_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-tiktok-fans-no-verification_GM835599320.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://bressanassessoria.com.br/images/daily-free-spins-on-coin-master_GM406889139.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_off00004ead.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EAD 24704 bytes
SHA-256: 802e0ffa2d151415cc9fe56ea22f1cf27007d296ccebd309c1c7d8f6dcbbd770
font_01_sfnt_off000087b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B9 18948 bytes
SHA-256: 51e23ece21a5db87a6816164d5f7b9d4648f2b45ca0bc50cf62599236be5306e