Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea04e3849ef988cd…

MALICIOUS

PDF

44.2 KB Created: 2021-06-11 02:25:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b592316259345756d2629d4d12e781f6 SHA-1: ab86ece23e19daf2ee6a3f96ed005025dadcea15 SHA-256: ea04e3849ef988cd77ffa352a94207b8971db02e89eaf8391bcc0ec20f2404a6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link disguised as a game hack, which redirects to a malicious URL. This lure is designed to trick users into clicking the link, likely leading to a further stage of infection or credential harvesting. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-project-jojo-free-items-exploit-pastebin-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-sign-up-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-free-accessories_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hacks_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_off0000503c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x503C 24188 bytes
SHA-256: e75a29d4a5d1d9333d1b98397e8da9913dde22376accc42b19cfba988e73fe07
font_01_sfnt_off000086f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86F3 19344 bytes
SHA-256: e06d1a638d11f15f50b5fae6e14e448297cd8c78cb6a731f08844ccad60f26c5

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