Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e2d832bb8fb8309…

MALICIOUS

PDF

34.8 KB Created: 2021-07-04 20:55:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 25ba01113972ae7ddbd0e30f11c5ee1c SHA-1: 0634c27b5029578185de66a94b70130f55487cd4 SHA-256: 8e2d832bb8fb8309a7edef4f26c90f9ca5f9838b246fc5d7410ac2e075140ecd
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free spins' and 'game hacks', directing users to a suspicious URL. This indicates a phishing or scam attempt designed to trick users into visiting a potentially malicious website. The ML classifier also flagged this PDF as malicious with high confidence.

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/free-spins-coin-master-october-17-2021-game-hack PDF link annotation
    • https://opac.umrah.ac.id/repository/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/pubg-uc-xyz_GM1330123889.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/archery-simulator-cheat-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-aimbot_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/hack-de-robux-en-roblox-2021-diciembre_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/oneapprewards-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-dentist-game-online-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/add-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-accounts-2021-with-robux-august-2021_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-snow-shoveling-simulator-cheats_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-tix-roblox-pbb_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-password-and-logins-for-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-adopt-me_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-spin-hack_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
font_00_sfnt_off00002f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F03 23440 bytes
SHA-256: c8e43bfce922e899949811663e14b5fcf8a90df7a034c9a80ab1141114761d50
font_01_sfnt_off0000637c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x637C 18788 bytes
SHA-256: 65f4803c8f051d412bbbbbb7dd72e981990fef64dbb6576893c251839893721c

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