Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ed1706326083826…

MALICIOUS

PDF

33.8 KB Created: 2021-07-03 13:26:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: b042e3bd2a51bafd12a3db123562a093 SHA-1: 0d56263558376fb924060ef780631a5f45a0b61f SHA-256: 2ed1706326083826acf9507a6be31efe9c8c4b7b716a03e2928a053e26630437
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and sites offering 'free generators' or 'hacks' for popular games. The document body explicitly mentions 'Reddit Coin Master Hack' and includes URLs that lead to further lures for game hacks and exploits. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/406889139/reddit-coin-master-hack-game-hack In PDF document text
    • http://lib3tell.stptrisakti.net/repository/bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/como-descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/pokemon-go-free-apk-download_GM1094591345.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/113-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-get-free-likes-and-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-strucid-battle-royale-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/roblox-kidnap-hack_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://lib3tell.stptrisakti.net//repository/wurst-commands_GM479516143.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_002_off00002f5e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F5E 22496 bytes
SHA-256: ff7d782dd5718f88840f5e691a3c559180314978ab1ac71ad160092c13de2284
font_01_sfnt_off000061a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A0 18180 bytes
SHA-256: 7b7b830d622982d8919e89c01570c642ed90793247a4b88b856bfd7aac266e76

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