Malicious PDF — malware analysis report

Static analysis result for SHA-256 04a65ca315ae6764…

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 04:58:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 3727f68e2e08076625ee6ea1c9246799 SHA-1: c5aa18e374d0601311cfa549da5bcf58cae142b6 SHA-256: 04a65ca315ae67646a39a8c42da7234c1aad5cae59cc9dd972b74f6681295037
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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/robux-money-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id//repository/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spin-game_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spin-software_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roblox-accounts-with-builders-club_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-skin-packs_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • https://rblx.landIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004fe6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE6 28232 bytes
SHA-256: 9f8eca3ddbadc77acc4096b091b45384f89416281402108f0d97c5c0a4261423
font_01_sfnt_off00009008.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9008 18228 bytes
SHA-256: a1e288e8d395127fae36e91413c9c1544162894d4ec00b8b92c4c442b3b94a73

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