Malicious PDF — malware analysis report

Static analysis result for SHA-256 9beb252ef71576ba…

MALICIOUS

PDF

33.5 KB Created: 2021-07-05 01:27:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 24fe5e266ca1413b5ffb890156b401b5 SHA-1: 98ea4004f8de2208fca623edcfdcd280b5e30ed3 SHA-256: 9beb252ef71576ba0ce62bc645025961a0ac117db0168470544f7ef1dbb6f3b6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a phishing or scam attempt.

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/479516143/minecraft-java-edition-for-free-game-hack In PDF document text
    • http://pustaka1.unindra.id/repository/como-conseguir-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/tiktok-free-icon_GM835599320.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-coins-generator_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/roblox-free-t-shirt-adidas_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-coins-free_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/wurst-hacked-client-112-2_GM479516143.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://pustaka1.unindra.id/repository/free-roblox-executor-no-key_GM431946152.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_off00002faa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FAA 21952 bytes
SHA-256: 79f792024c64c2a7f7ed4208567c80dd7e97084f165b43ca68f4b2f9b79d4fda
font_01_sfnt_off00005fc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC6 18452 bytes
SHA-256: c88fc963111c99bd76411e48cc5f7a93ca1ac40d038cb8251833f774ecd296b3

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