Malicious PDF — malware analysis report

Static analysis result for SHA-256 d760a1f307432076…

MALICIOUS

PDF

33.5 KB Created: 2021-06-18 05:43:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 9491d09c45f75159e65ee8c7dca0805c SHA-1: 9f0836071dc92826f382e5b780854abd819a3ed1 SHA-256: d760a1f307432076d8466e2645d985b3ff80b9e2b530f84f8028d9739f7f6026
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and account recovery to trick users into clicking malicious links. The primary link, http://netcdn.co/app/431946152/how-to-get-your-roblox-account-back-from-being-hacked-game-hack, is identified as a malicious redirector. The document's structure and embedded URLs suggest it is designed to lead users to potentially harmful content or further malware downloads.

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.co/app/431946152/how-to-get-your-roblox-account-back-from-being-hacked-game-hack In PDF document text
    • https://www.manmed.info:443/images/are-robux-generators-safe_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/wurst-minecraft_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/roblox-apk-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-free-robux_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/mobihack-net-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/hacks-para-roblox-counter-blox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-expert-scripters-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-download-minecraft-for-free-on-windows_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-version_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/i-want-to-grow-my-account-tiktok-free_GM835599320.pdfIn PDF document text
    • https://www.manmed.info:443/images/games-like-coin-master_GM406889139.pdfIn PDF document text
    • https://www.manmed.info:443/images/op-wii-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://www.manmed.info:443/images/coin-master-hack-with-facebook-login_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
font_00_sfnt_off00002d29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D29 21540 bytes
SHA-256: 61694634596e0058e1d14403db861c925902206add898e4aa884ea55e6b09f70
font_01_sfnt_off00005bf1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF1 19756 bytes
SHA-256: a2a31f9484e194d95f6d956b29e71a5f6aba2f5ce55d5a20ef228e35a2251536

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