Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0edea5bfff4f86…

MALICIOUS

PDF

46.4 KB Created: 2021-06-13 21:41:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7d9e6d00a2570217d941375275963745 SHA-1: 5f652c910d52833a61bc1d23e3819f0cee91761d SHA-256: ad0edea5bfff4f867cf951127adee97de205daf4f7f70aa50d29931637cdf2d9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" for Robux, directing users to a suspicious URL. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lure suggest an attempt to redirect users to a site that likely hosts malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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 http://netcdn.co/app/431946152/how-to-get-100-robux-on-roblox-free-2021-game-hack PDF link annotation
    • http://library.stikessuakainsan.ac.id//repository/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-colouring-pages-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/free-promocodes-roblox-body_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-hack-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-inappropriate_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/easy-robux_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/coin-master-free-spins-save_GM406889139.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id/repository/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://library.stikessuakainsan.ac.id//repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • https://www.roblox.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B06 25348 bytes
SHA-256: bc429560d7e711497b78168fe04c916de763eeee83186c2314782a745033c995
font_01_sfnt_off000085b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B7 3512 bytes
SHA-256: d2fbe445e4228ea2e3d75d3e8f0f84124f9dd8d3d0cf2c6e4e63bcca92f2519f
font_02_sfnt_off0000914a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x914A 18756 bytes
SHA-256: 7ebd1a648f0cfc4e4c1bf6a589378a63004d616a28f97b96437788392a7c0079

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