Malicious PDF — malware analysis report

Static analysis result for SHA-256 e609c4d946bda86a…

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 11:15:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a6e1703cacd74c9ca47b73721c08a051 SHA-1: 8bc6f450ad06dbe84d60bb28a0663d990e466cb3 SHA-256: e609c4d946bda86a66b20b062fc81faaf95d635cca6076d93a69b8fcb5af85b1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game hacks, specifically for Roblox, directing users to a malicious URL. The ML classifier strongly flagged this PDF as malicious, and multiple heuristics indicate the presence of external URIs and a game hack redirector lure. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to lead the user to a site that likely hosts further malicious content or exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/how-do-you-get-free-roblox-game-hack PDF link annotation
    • http://digilib-ppsunisma.ac.id/repository/minecraft-tiktok-hacks_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-images_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/rape-simulator_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/ear-robux-free-no-scams_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-account_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/static-moonactive-net-link_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/all-minecraft-handbooks_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/cmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-free-coins-and-spins-link_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
stream_004_off00005053.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5053 25368 bytes
SHA-256: 4a54868670967a4835f3fdf5978ae5811df2aedf27716d49149aa52846040c28
font_01_sfnt_off00008a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A9D 18688 bytes
SHA-256: 094a4600e44b5c04215cd8ac870b75cf15a4da61eb1de076039b07fe4aec062b

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