Malicious PDF — malware analysis report

Static analysis result for SHA-256 9175d49f8f7571a9…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 02:25:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9851a58c7e13ae92a53c76385b4bcd9f SHA-1: 6ae7556d5c6ff216e894505e70d7f9613b4d5756 SHA-256: 9175d49f8f7571a9e2c29d5b6a76ac8cdd2bb24ec5c239ebd305ccd34b26ee3f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, specifically targeting Roblox players. It contains multiple embedded URLs that redirect to malicious infrastructure, including a known malicious redirector. The document's content and embedded links strongly suggest an attempt to trick users into visiting potentially harmful sites, likely for credential harvesting or malware distribution.

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/roblox-wall-hacks-2021-script-game-hack In PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-roblox-sigh-in_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/car-crushers-2-roblox-free_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/hacking-money-in-vehicle-sim-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/hacks-minecraft_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-free-robux-getrobux-gg_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/can-i-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/how-to-get-free-robux-on-pc_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_off000034b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34B6 22108 bytes
SHA-256: 909bdcfa74bbe78c390efe061dd8e2a3270f31232acfc0a5b94ae33bf054e863
font_01_sfnt_off00006593.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6593 19656 bytes
SHA-256: 2d8df03c3cd8696004a058735507a6cbe498edab3c97ffdfdb7e245124023bef

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