Malicious PDF — malware analysis report

Static analysis result for SHA-256 602d8bbcaa53d551…

MALICIOUS

PDF

54.1 KB Created: 2021-05-11 02:31:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: b4d66d2e6caa2c013187d1395b135ea8 SHA-1: 3f3e275d87f08d28a1babaead58c72ad5170f25f SHA-256: 602d8bbcaa53d5518d85031d952696447f3963e696c1381b79c084d888cd07f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators, specifically mentioning Roblox. It contains multiple links directing users to known malicious redirector infrastructure, such as https://netcdn.xyz/app/431946152/roblox-redeem-card-codes-free-game-hack. The presence of these links and the overall theme strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the document's structure and embedded URLs indicate a malicious intent to redirect users.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8795

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 https://netcdn.xyz/app/431946152/roblox-redeem-card-codes-free-game-hack In PDF document text
    • http://beautyforyou.fr/images/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/avatar-roblox-game_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-online_GM406889139.pdfIn PDF document text
    • http://beautyforyou.fr/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://beautyforyou.fr/images/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b07.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B07 26404 bytes
SHA-256: 90902ac8877f4b0db1268b807e09f07c61fc814a601e9a5bbe467380c11650ee
font_01_sfnt_off00008861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8861 8376 bytes
SHA-256: 092b7a11ef2af93d0b61b37032e6f669359ea7bc5bcb682d43a712f599a5ca39
font_02_sfnt_off0000a32b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA32B 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000b03c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB03C 18612 bytes
SHA-256: a80930eafb0fa49b70c8b74e6f01afa17dc8341ac3dd6991c9bc21ab4de62243

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