Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ee7ed107d69b5ce…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 12:31:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: cf17e06b8c9e5dd6878ae5295f873038 SHA-1: 4c46c6e5433013a5fef62df6888d81a54f2a10b4 SHA-256: 6ee7ed107d69b5cea83b10d363e53ff94ed74c9b0ef7e1e694d215632b8e195c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/479516143/how-to-download-minecraft-for-free-on-iphone-game-hack. The document body and heuristics indicate a lure related to game hacks and free generators, suggesting an attempt to trick users into visiting malicious sites. No scripts were extracted, but the presence of embedded URLs and the redirector link strongly suggest a phishing or malware distribution 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/how-to-download-minecraft-for-free-on-iphone-game-hack In PDF document text
    • http://library.imz.or.id/repository/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/best-tools-to-hack-roblox-on-android_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-bee-swarm-simulator-free-eggs_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-lua-script_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-royale-high-diamond-hack_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/minecraft-free-play-now_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/real-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/addget-free-roblox-robloxcom_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-speed-hack-in-roblox-mobile_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/free-roblox-items-for-1m-instagram-followers_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/roblox-hack-for-free-robux-without-veirfication-required_GM431946152.pdfIn PDF document text
    • http://library.imz.or.id/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.imz.or.id/repository/how-do-you-use-tunturned-roblox-hack_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_off000032c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C2 22076 bytes
SHA-256: a7fe2d02fe72e483877d20e9d704b171b07908e8db31487910f4488eb3e5e514
font_01_sfnt_off00006363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6363 18920 bytes
SHA-256: 0804603b1cc23610cdbf59007cb88478a5f96776826fe68fd4f72156fde116ee

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