PDF static analysis report

Static analysis result for SHA-256 1672370961f1410e…

SUSPICIOUS

PDF

46.0 KB Created: 2021-06-08 22:05:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: eedcf41fcf4c3f3dddf36c7d329b67b5 SHA-1: 391c2e3f87c13f812d6aec2681f59d53a64274cd SHA-256: 1672370961f1410ee152638891c050fa2b9674d19acf7fedc5bc8a0cf8b50b62
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that promote 'free Robux' and game hacks, indicating a social engineering lure. The ML classifier strongly flagged this PDF as malicious, and the presence of multiple suspicious URLs suggests an attempt to redirect users to malicious sites for downloading further payloads or engaging in scams. No scripts were extracted, but the overall pattern points to a downloader or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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-now-game-hack PDF link annotation
    • http://sbm-nn.ru/images/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-minecraft-gift-codes_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-hacks-for-rb-world-2_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-online-free_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-hack-version-download_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-roblox-accounts-discord_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-followers-on-roblox_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/coin-master-free-coins-and-spins-link_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_off000053fa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53FA 27296 bytes
SHA-256: 04e2b3dafceaef7a2230e7a8c449da369d4bccd26a5ffd2f51b58af24bbdcc60
font_01_sfnt_off0000918e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x918E 18180 bytes
SHA-256: 347d9824d8825d818282a285fba00b3bd41d7299fa84866cfa8bfb70561977b1