Malicious PDF — malware analysis report

Static analysis result for SHA-256 e97bebaefc60e8f7…

MALICIOUS

PDF

44.2 KB Created: 2021-06-11 03:11:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8d74755fcf9ebb29818f3648ae2ffb7d SHA-1: d61a8a9e2c877ed08c866e28c1b4501c8842338c SHA-256: e97bebaefc60e8f78fd88b9e9d696a1f672416424e9e17a9e0b376cbf0cb0cae
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 0.9865

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/how-to-hack-into-roblox-accounts-2021-game-hack PDF link annotation
    • https://audev.com/images/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • https://audev.com/images/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/hack-robux-with-cheat-engine-64_GM431946152.pdfIn PDF document text
    • https://audev.com/images/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • https://audev.com/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://audev.com/images/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://www.audev.com/images/roblox-person_GM431946152.pdfIn PDF document text
    • https://audev.com/images/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
    • https://audev.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • https://audev.com/images/free-spin-sites-for-coin-master_GM406889139.pdfIn PDF document text
    • https://audev.com/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://audev.com/images/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • https://audev.com/images/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://www.audev.com/images/roblox-free-play_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://audev.com/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/roblox-free-race-tracks_GM431946152.pdfIn PDF document text
    • https://www.audev.com/images/tiktok-free-views-2021_GM835599320.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_off000050fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FA 24032 bytes
SHA-256: 3e656b29c5f93a330b28047016ed8df6a4e3851d17075f3fc1c29453eece2254
font_01_sfnt_off00008797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8797 18992 bytes
SHA-256: a2b7451334d9afd8ee8e5a6925a4332d1cc9569c21f8566d650f26760e8ab26e

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