Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc2b4abcec7126cc…

MALICIOUS

PDF

42.6 KB Created: 2021-05-15 13:03:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1b44b63b13f44a4d194aabba936aa3a7 SHA-1: 4d32eb7922e9c852c049373dd84ba430839c80b4 SHA-256: dc2b4abcec7126cc25a934f11a0a42c0e2654f083595c691eb8ea2aa0d435f4e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of embedded links, many of which are SEO-optimized and point to game-related hacks and cheats. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall structure suggests a link farm designed to distribute malware or lead users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.xyz/app/431946152/doctor-louie-roblox-game-hack
    • http://sagrasantacroce.it/images/how-to-hack-a-minecraft-account_GM479516143.pdf
    • http://sagrasantacroce.it/images/coin-master-apk-hack-2021-ios_GM406889139.pdf
    • http://sagrasantacroce.it/images/coin-master-hacks-no-verification_GM406889139.pdf
    • http://sagrasantacroce.it/images/minecraft-windows-10-key-free_GM479516143.pdf
    • http://sagrasantacroce.it/images/how-many-levels-are-there-in-coin-master_GM406889139.pdf
    • http://sagrasantacroce.it/images/free-robux-app-2021_GM431946152.pdf
    • http://sagrasantacroce.it/images/how-to-get-free-robux-no-human-verification_GM431946152.pdf
    • http://sagrasantacroce.it/images/how-to-get-free-robux-hack_GM431946152.pdf
    • http://sagrasantacroce.it/images/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://sagrasantacroce.it/images/how-to-hack-people-on-roblox_GM431946152.pdf
    • http://sagrasantacroce.it/images/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdf
    • http://sagrasantacroce.it/images/easy-coin-master-hack-without-verification_GM406889139.pdf
    • http://sagrasantacroce.it/images/minecraft-bedrock-edition-free-with-java_GM479516143.pdf
    • http://sagrasantacroce.it/images/free-robux-codes-generator_GM431946152.pdf
    • http://sagrasantacroce.it/images/can-you-hack-coin-master_GM406889139.pdf
    • http://sagrasantacroce.it/images/free-robux-com-roblox_GM431946152.pdf
    • http://sagrasantacroce.it/images/free-robux-no-human-verification-or-survey_GM431946152.pdf
    • http://sagrasantacroce.it/images/coin-master-free-redeem-code_GM406889139.pdf
    • http://sagrasantacroce.it/images/coin-master-free-spins-and-coins_GM406889139.pdf
    • http://sagrasantacroce.it/images/does-coin-master-hack-work_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a0e.bin
1488c1b6f29c0a6cf832efd8c0a5929450f19a122102d9ab3abf078caf2e23d3
pdf-font-stream PDF embedded font (sfnt) at offset 0x4A0E 25208 bytes
font_01_sfnt_off000083f4.bin
a67cc4456e37825fdb016d67539e8fa901c59c8de80b02198f22e4c478291c4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x83F4 18316 bytes