Malicious PDF — malware analysis report

Static analysis result for SHA-256 11d8aa9944ca2b46…

MALICIOUS

PDF

48.6 KB Created: 2021-06-09 14:21:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d1f43bc813de1b89fb5c4dc693d03212 SHA-1: 6a2d3e7066197af13c682c58eb1c20d2766761ea SHA-256: 11d8aa9944ca2b4636b6c2c075e5bde3c58f4556f2d9b5e7978404b1593e462c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically disguised as game hacks or generators. The primary lure URL, 'https://netcdn.tw/app/431946152/roblox-pc-download-free-game-hack', is associated with a critical heuristic firing for malicious redirector infrastructure. This suggests the document's purpose is to trick users into visiting malicious sites, likely to download further malware or engage in phishing.

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.tw/app/431946152/roblox-pc-download-free-game-hack In PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/get-robux-today_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/robux-get-com_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/getrobux-ninja_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/body-roblox_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/noclip-hack-download-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/how-to-get-stuff-that-cost-coins-free-mcpe-master_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/coin-master-hacks-to-get-spins_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://www.stileadda.com/uploaded_files/userfiles/files/roblox-getting-hacked_GM431946152.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
font_00_sfnt_off000052c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C1 26192 bytes
SHA-256: 005454aa61a3ef6b16b14ce00fd1d9179af7499b110c697bdfa3d91f63ca14ae
font_01_sfnt_off00008fc7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FC7 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00009978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9978 18836 bytes
SHA-256: f4586b813c8e68c11ea8adc16781e69e52b5691099101e1dacba36dcf1ee62fa

Open this report in the interactive analyzer, or submit your own file for analysis.