Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7b1d46ec02986e…

MALICIOUS

PDF

44.0 KB Created: 2021-06-07 18:11:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bcabe604801574acde0da1864d66148b SHA-1: 1729ed5b10dbfb02fd78ddf150c29ade12b0c522 SHA-256: 6f7b1d46ec02986e8ba3669e3111b9fce49fd2b934d2f3a8a9442dac345428c1
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/roblox-treasure-hunt-simulator-hack-script-game-hack PDF link annotation
    • http://babbibooth.com/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/xray-hack_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-online-pc_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/rewardrobux-com_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://babbibooth.com/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/cheat-engine-roblox-2021_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://babbibooth.com/images/change-stat-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://babbibooth.com/images/offers-to-complete-and-get-free-spins-in-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
stream_004_off00004db7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DB7 24976 bytes
SHA-256: 884ef1c0bb42ab43e6abe1846c562a08cfdad0944850c348973001eefe50d195
font_01_sfnt_off00008734.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8734 18980 bytes
SHA-256: 5d6a5102067a49a52da525ef8b6953868e05c7afef6ebb5204e7542d3406ee05

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