Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b9bf85d2710161…

MALICIOUS

PDF

34.0 KB Created: 2021-07-08 17:45:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-28
MD5: 6ba7d29ef6a62d1c182404717a233fb2 SHA-1: 6703654481c4c14206628c35302d084db5f325b7 SHA-256: 72b9bf85d27101611e0ae4680017a3ff6daf9fae35bf4f2524c858ba911c6947
160 Risk Score

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.tw/app/479516143/wurst-mc-game-hack In PDF document text
    • https://perpustakaan.stifar.ac.id/repository/fedora-roblox-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-make-hack-models-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-hack-roblox-without-human-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-hack-download-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-weapons-for-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-free-money-in-roblox-jailbreak-on-ipad_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-roblox-cards-pin-number_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/trybox-site-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-free-robux-2021-to-keep_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-roblox-acount-genrator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-robuxs-pate_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/hack-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-hack-tool-game-android_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/roblox-flood-escape-fly-hack-unpachible_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/oh-no-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-free-robux-2021-site-youtubecom_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/2021-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/beast-mode-face-roblox-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stifar.ac.id/repository/free-roblox-gift-card-codes-list-november-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_off00003106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3106 22472 bytes
SHA-256: 0304a80a4965b7c835f63243eeb2469b2947f7d2967d7c488bb7f0c7b7aaae0c
font_01_sfnt_off000062f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 18072 bytes
SHA-256: f2e49008d51297eeb1fc8be2ba2f15def21feb23153b94f58eb81aee8282afc5

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