Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a6e23fe50ef10d1…

MALICIOUS

PDF

49.3 KB Created: 2021-06-02 21:30:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 09f74aa92760a53d719ec3865cfe3605 SHA-1: 71edacf7a030617dd2b05e30a6892ede69a733f4 SHA-256: 6a6e23fe50ef10d1ef9a62aac2c5eb65e608cdffb97418b89d9527bf3382974a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and document body text promoting a 'Robux Cheat Codes 2021' and 'game hack' lure. These links direct to malicious infrastructure, specifically the URL https://netcdn.xyz/app/431946152/robux-cheat-codes-2021-game-hack, which is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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/robux-cheat-codes-2021-game-hack In PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-tiktok-likes-generator_GM835599320.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/simplysarc_GM479516143.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/robux-link_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-tiktok-bots_GM835599320.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-free-spins-activegamer_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus-baitulhikmah.esy.es/akasia/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005466.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5466 26396 bytes
SHA-256: f33b99511b8b68d78ea8241c7a75f48c1b913e1857aeaf5e0cca4332d93ccf75
font_01_sfnt_off00009258.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9258 2824 bytes
SHA-256: bd082aa73fbb1a8b3bd2e5c998d3d8e31d1dfc71ea36f846af746f69a0d2ab7f
font_02_sfnt_off00009c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C0C 18924 bytes
SHA-256: 46f32cf2f45095e584f0532714a2262c398fcf7132be6044185c6d67f0d2aee4

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