PDF static analysis report

Static analysis result for SHA-256 162cdbbf9ce527fc…

SUSPICIOUS

PDF

35.9 KB Created: 2021-06-22 19:24:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: c4689f43abc37822735e2e1472e205e4 SHA-1: e17ce83592520b12d9a7dceb3350457a092a3a81 SHA-256: 162cdbbf9ce527fcdbfbb8f08b695df5e149a91abdd5194abab2317eb478fb94
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action lure related to free Robux, strongly suggesting a phishing or scam attempt. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs indicates an attempt to redirect the user to download a secondary payload or application.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/free-robux-real-2021-game-hack PDF link annotation
    • https://www.hearcolors.com.mx/img/blog/files/skywars-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-game-hack-link_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-anything-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/fake-free-robux-gui-troll_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/veil-free-download-roblox-exploit_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_off0000349e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x349E 22480 bytes
SHA-256: e52ccf7e93b35be935b0d2033ff1d8f070b2c986af74fcd58fe788239ba29906
font_01_sfnt_off000066fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FD 19192 bytes
SHA-256: 0a56f38ee828cc338b4ecf6fd69a1c4ab782641ccce74c835442ee7dbad06135