Malicious PDF — malware analysis report

Static analysis result for SHA-256 83b45f062c363c28…

MALICIOUS

PDF

33.0 KB Created: 2021-06-29 13:35:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 859f23fe29418be59febb8caea5a530f SHA-1: 978b27a1810bccdec6ae03873bb8c7e14a093d98 SHA-256: 83b45f062c363c289040ee7dcfbded2d1b64117a044e5b0a0f428c6093e3b9e9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and generators to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/roblox-hack-gui-mac-game-hack, is identified as a malicious redirector, likely leading to further malicious content or malware downloads. The document's structure and embedded URLs suggest a phishing or social engineering attack aimed at tricking users into visiting compromised sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-hack-gui-mac-game-hack In PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/paginas-para-descargar-hacks-de-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-hack-cheats-tool-generator_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/comment-hacker-roblox-mad-city-en-frencai_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/minecraft-windows-10-mod-menu_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-free-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/how-to-get-free-avatar-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-bloxburg-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-spin_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/what-is-the-best-looking-thing-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/pubg-uc-nepal-price_GM1330123889.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-free-rs-2021_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_off00002b96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B96 21900 bytes
SHA-256: 066d32646bcca9f277599ae75e14a279b80a41f74872740cba7e117882d6337e
font_01_sfnt_off00005bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF4 19112 bytes
SHA-256: 4833625f81effd100109e89258ef8153bf200c63721c1f8a211a9b088040e17b

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