Malicious PDF — malware analysis report

Static analysis result for SHA-256 01157a20bbde4065…

MALICIOUS

PDF

34.7 KB Created: 2021-07-08 16:57:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-28
MD5: adced968c99cdbe879540457dd5b652c SHA-1: 35547f40065ac67c4cf2afd0d08fcc19774165af SHA-256: 01157a20bbde4065df3ad0801da347721cc0bb7a5375b2747c4fa4f2b7894ece
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/406889139/coin-master-spin-hack-without-verification-game-hack In PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/roblox-ro-ghoul-free-yen_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/roblox-robux-and-tix-generator-free-download_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/how-to-change-your-roblox-group-name-for-free_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/roblox-apocalypse-rising-spawn-hack-2021_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/get-robux-com_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/get-unlimited-robux-for-free-new-hack-2021-roblox-working_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/roblox-gang-rape_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/free-roblox-pin-codes-2021_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/my-roblox-account-got-hacked-what-do-i-do_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/how-to-make-a-server-in-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/how-to-noclip-in-roblox-cheat-engine-67-2021_GM431946152.pdfIn PDF document text
    • https://pt-mataram.go.id/perpustakaan/repository/roblox-free-400-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (stream_002_off000030aa.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030aa.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30AA 22752 bytes
SHA-256: a3463d307028f1749aa8ef4c2dd16b2d31577c6c6913e22fe1a653e304ffb8a0
font_01_sfnt_off00006350.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6350 18820 bytes
SHA-256: 92cf72ed7a186aaadd94887e1247b3d5c76ccdcbf70ae77d0bc88c96f4ecb94d

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