Malicious PDF — malware analysis report

Static analysis result for SHA-256 db130ec60cfa9fd3…

MALICIOUS

PDF

49.9 KB Created: 2021-06-04 03:46:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ebaeb68ac6ae1c87ae1b81f8731a088c SHA-1: 7b40602e720c5ef6da46a9d216e9d3f13087a1c2 SHA-256: db130ec60cfa9fd32d8263de0b2df1faec81988818754c6fb2587b420d4f113d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a lure for free in-game currency, directing users to a URL that is flagged as a game hack redirector. The document body and embedded URLs suggest a phishing or scam attempt to trick users into visiting malicious sites. No scripts were extracted, but the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/how-to-get-free-robux-no-human-verification-2021-game-hack PDF link annotation
    • http://lib.mappifhui.org/repository/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-people-girl_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-in-roblox-2021-not-clickbait_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-generatere_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/mcpe-hacks_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000053ea.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53EA 25208 bytes
SHA-256: f2798b651e535a505e235990c8bc34eeb623621979558cd30e95fd31c2e36e31
font_01_sfnt_off00008c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9B 4708 bytes
SHA-256: 6731524edc4fa434a5fdf2877f7743bfc7449abedbd031ecf4ef69fa241f1398
font_02_sfnt_off00009ce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CE4 19428 bytes
SHA-256: dc7c459a90b1a398d2ee51f52972ed8a07904c77cd045887558a99bdb9823e3c

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