Malicious PDF — malware analysis report

Static analysis result for SHA-256 51535fe0835021cd…

MALICIOUS

PDF

34.7 KB Created: 2021-06-24 23:20:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 05931cfebd0ca25a20327d95cb54eb60 SHA-1: eae06aaf299fb49180c883b18bebdbc7890116b9 SHA-256: 51535fe0835021cd6861cb429262b124bdb4d42f643955a971ccb8ff0ca0a235
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external websites, many of which are hosted on a domain associated with game hacks and cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious intent to direct users to potentially harmful content. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/479516143/hacks-for-minecraft-windows-10-game-hack
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/tiktok-followers-for-free_GM835599320.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-download-hack_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-app_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-do-you-get-minecraft-for-free_GM479516143.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/roblox-builders-club-free_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/can-you-give-me-robux_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-robux-no-verification-required_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021-today_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-hack-someones-roblox-account_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-roblox-shirts-to-upload_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-roebucks-com_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-change-roblox-name-for-free_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-no-verification-2021_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-coins-and-spins_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-800-robux-for-free_GM431946152.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/how-to-get-tiktok-famous-free_GM835599320.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/coin-master-hack-no-survey-or-verification_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/free-money-links-coin-master_GM406889139.pdf
    • https://elearning.man1-kotagorontalo.sch.id/__statics/gudangsoal/files/robux-apk_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032ef.bin
2c1d494882565058f85c8585b3fe9c5eeeb6bfb53226577c5a426aa6bd41de0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x32EF 21792 bytes
font_01_sfnt_off000062a9.bin
a8b91b14fecb1f5705050e78284ec6d226d91b7b7b66b25b331f748abcb481e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62A9 18980 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.