Malicious PDF — malware analysis report

Static analysis result for SHA-256 632f36e0eebeebb8…

MALICIOUS

PDF

45.8 KB Created: 2021-06-03 11:58:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 750164d204a8329879315ab8c992cbec SHA-1: 1caa360c2242b22505f7f9b8d65f8901deb1e4e4 SHA-256: 632f36e0eebeebb8da76d036151539e03a78d189f69e60348f36da9172f01c51
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to entice users to click on embedded links. The primary malicious link identified is https://netcdn.online/app/431946152/roblox-gang-rape-game-hack, which likely leads to a further malicious download or exploit. The document's structure and embedded URLs suggest an attempt to deliver a secondary payload or redirect users to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.online/app/431946152/roblox-gang-rape-game-hack PDF link annotation
    • http://libnh.stikesnh.ac.id/repository/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-daily-link_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/pokemon-go-free-636_GM1094591345.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/100-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-coin-master-spins-daily_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
font_00_sfnt_off0000515c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x515C 28024 bytes
SHA-256: 6f6e2456a2bf8b98cf99637bc3d62a4140f15cb0ae0760cf98aa24d1daaa7b06
font_01_sfnt_off00008fe7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FE7 18476 bytes
SHA-256: 84738463155765abaa87378d822747d6195530926b9c88b60ea2d23f4db24e12