Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba5d3d3c9bfb65b…

MALICIOUS

PDF

32.6 KB Created: 2021-07-22 04:13:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8aeb88c3e352204ebdd177616a63777c SHA-1: 93bb5d3462be1127429e740b1708a15bb7cb6cb6 SHA-256: fba5d3d3c9bfb65b6ed96a091f37e4e6d9cc4762148c5516cc7a24aecdaab61b
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 0.9900

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/479516143/how-to-get-minecraft-for-free-ios-game-hack PDF link annotation
    • http://genialica.com/images/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • http://genialica.com/images/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://genialica.com/images/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/free-disney-plus-accounts-tiktok_GM835599320.pdfIn PDF document text
    • http://genialica.com/images/free-coin-master-spins-and-coins_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_off00002d2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2C 22288 bytes
SHA-256: b300117c985c7675221a0c763df19f89e0f35fb3bce693f63d5bf800c1dbb7d5
font_01_sfnt_off00005e9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9E 17872 bytes
SHA-256: f310131035db742f338f230ab2c5697c5d59cc25d8943e3e3339342bb09010ba

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