Malicious PDF — malware analysis report

Static analysis result for SHA-256 01132376e728b1e9…

MALICIOUS

PDF

34.0 KB Created: 2021-06-27 04:29:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-05-28
MD5: c73ff9dba671c1aa62e987d44263a5fb SHA-1: a169e655a736625be3e780271524d5f000fa9e46 SHA-256: 01132376e728b1e9af8fa0c4639dab6649cbed21c42760f1fcdc5b5b49af4bed
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.co/app/431946152/bandit-roblox-free-game-hack In PDF document text
    • https://www.astrospace.com.tw/upload/files/fps-hacks-roblox-aimbot-how-to-activate-aimbot_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/roblox-working-hack-dll-for-ccc_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/code-free-robux_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-free-spin-link-twitter_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/blue-boy-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/a-code-that-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-knife-cbro-roblox_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/roblox-run-hack_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/free-roblox-promo-codes-march-2021_GM431946152.pdfIn PDF document text
    • https://www.astrospace.com.tw/upload/files/html-falso-para-roblox-para-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn extracted file (font_00_sfnt_off00002eca.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002eca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECA 22104 bytes
SHA-256: 8568ac31286e9b727d141f1dff356a891238a540cc3eeae8772c634d2ec33d60
font_01_sfnt_off00005fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB0 19048 bytes
SHA-256: 821153c6551f2e690bb0f96c722ee881eaf068fcde05751820565b0e6e310043