Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd1bb24ab915a5ff…

MALICIOUS

PDF

34.1 KB Created: 2021-06-17 18:27:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: e48ed3e896a1470779e8168b9acbcdc1 SHA-1: ecd952150efe1930fb79d0d208f06b5c5832e59a SHA-256: bd1bb24ab915a5ffcbc75b11e26fd45dc9d4336c63d73416b27125fc762c1b35
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.co/app/431946152/injustice-oa-roblox-hack-game-hack PDF link annotation
    • http://aeridefense.com/image/data/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/hacker-com-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-working_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robux-cheats-com_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-to-do-hacks-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/game-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://aeridefense.com/image/data/files/how-can-i-get-free-spins-on-coin-master_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_off00002e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E60 22380 bytes
SHA-256: 64b2bdd7e3f4fdd5612ed4ed76a6e4643eea1233f90e399ce877a6eb8fdd4b8e
font_01_sfnt_off00006003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6003 19020 bytes
SHA-256: 7556dae4a504111a5e3478d8dd27e8679b61ec7b5185a300cbdfd1c880676eef

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