Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d384d2e6c8ae918…

MALICIOUS

PDF

35.0 KB Created: 2021-07-06 11:10:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f98ed236b6a94aa7f0d6500f4d1d759b SHA-1: 5b125bcea82bbc8a5bc663ce9df87d16eca0b221 SHA-256: 5d384d2e6c8ae91877ca28c56ae0cb83d082ec33a662caab4d68a50aa5ee5aa6
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 0.9980

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.tw/app/431946152/how-to-earn-free-robux-game-hack PDF link annotation
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/roblox-scary-hack-music_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/roblox-bad-buisness-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/free-roblox-premium-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/roblox-full-throttle-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/roblox-strucid-free-private-server-join_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/ban-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/rake-roblox-health-bar-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/fps-hacks-roblox-aimbot-how-to-activate-ambot_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/minecraft-free-download-mac-full-version-2021_GM479516143.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/roblox-dungeon-quest-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://pustaka.ditjenpkh.pertanian.go.id/pusvetma/repository/free-modded-minecraft-server_GM479516143.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_off00003158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3158 22760 bytes
SHA-256: 3b41f2bc691097c4bd522f75b58d4db8fa258978f41f739505bb13f303d796df
font_01_sfnt_off00006454.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6454 18880 bytes
SHA-256: a522bee010909c1dfdd5b814bfadf8c7715ebc59745b399d37c475b37c42e617

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