PDF static analysis report

Static analysis result for SHA-256 37f7fa5339daf494…

SUSPICIOUS

PDF

33.6 KB Created: 2021-06-18 14:48:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b258390b7867e1a228672dd851404c5a SHA-1: 3c3ce8a7915e7520288197e8f2993ae6687b828e SHA-256: 37f7fa5339daf4949678e4eeaf92619fc6333e34d0d4265553533088df5f7179
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a call-to-action phrase, strongly suggesting a lure to download a malicious script. The ML classifier also flagged this PDF as malicious. The primary URL http://netcdn.co/app/431946152/script-executor-for-roblox-free-game-hack likely hosts the second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.co/app/431946152/script-executor-for-roblox-free-game-hack PDF link annotation
    • https://htdvn.com/public/upload/files/roblox-hack-me_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-vip-server-roblox_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-roebucks_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-unlimited-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/minecraft-java-edition-free-code_GM479516143.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/how-to-get-free-pubg-uc-without-human-verification_GM1330123889.pdfIn PDF document text
    • https://htdvn.com/public/upload/files/roblox-script-executor-free_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
font_00_sfnt_off00002abb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABB 23164 bytes
SHA-256: 026f174593d03cfe9426228303e199331b05b8d8d41a025a1a635c9513aac1e7
font_01_sfnt_off00005e54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E54 19192 bytes
SHA-256: c1138980c8171db6e071befc1ef95442d3438ced6e3cdbefcf1180bff9b47b9a