Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d74e18e96553879…

MALICIOUS

PDF

48.6 KB Created: 2021-06-03 05:26:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 07f11fbb7724c7f101c9516b5fbe1e23 SHA-1: c6bb615d3a95cb02d57e55d7df566db48f48a66b SHA-256: 3d74e18e965538793231a6fcb937bbb03ce7ffa40a7c1802c5e6baeacdf4f60f
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 0.9796

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/406889139/how-can-i-get-free-spins-on-coin-master-game-hack PDF link annotation
    • https://digilib.stieama.ac.id/repository/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hack-roblox-players_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/avatar-roblox-free-skin_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB6 24624 bytes
SHA-256: 3df002c393effa13baf72312f7e27d883a518dd36f1eaa3e3a9551fafb8c1b16
font_01_sfnt_off0000871b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x871B 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off00009106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9106 18052 bytes
SHA-256: f4ab70c7a1b321e89283bf56011259b2481f340c7b70b557de06403c5562b8cd
font_03_sfnt_off0000b243.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB243 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

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