Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ed0dfcc0003e53…

MALICIOUS

PDF

35.6 KB Created: 2021-07-03 18:03:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 715e6b8fcb3238b2548e213483f96adb SHA-1: 00c3d44afabb4419c87fcfcfe96e7bbe15765629 SHA-256: d7ed0dfcc0003e5385fb095f354838fc16e83fabe053197893702fdd04326ec8
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/406889139/download-coin-master-hack-apk-game-hack PDF link annotation
    • http://perpus.unpam.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-2021-robux-code_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/claim-free-robux-button_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/pixies-gigantic-coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-cheat-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-fly-hack-in-roblox-no-download_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-roblox-bloxys-arcades_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/roblox-town-factory-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/hack-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://perpus.unpam.ac.id/repository/how-to-hack-a-roblox-account-no-bullshit_GM431946152.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_off00003480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3480 22596 bytes
SHA-256: 5f7a6e30a1dedf52c83b59c6d25bbb4ade99ef4b0a2448f56129713193b2b353
font_01_sfnt_off000066e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E7 18760 bytes
SHA-256: a9106ec8bdb2ef00eddd29af2fd5eb663302a9539c133b1226910953e26aec8b

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