Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9fa0e2f8bb291f0…

MALICIOUS

PDF

35.1 KB Created: 2021-06-30 01:02:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a38c1efaf0a39288d85294215f80605a SHA-1: f9f29887e9d5925f65ee3095209ae39ab775068b SHA-256: e9fa0e2f8bb291f066f5cd315ab3730342dec48484317feb6dfe468ccabac962
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The document presents a lure for free in-game currency, directing users to download a file from a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the overall pattern suggests a phishing or social engineering attempt.

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/how-to-get-free-bucks-in-adopt-me-roblox-2021-game-hack In PDF document text
    • https://sunnygarden.com.tw/image/data/files/getting-robux-with-cheat-engine_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-on-roblox-2021-no-survey_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/basketball-free-charactes-in-roblox_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/toolbox-mod_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-roebucks_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-unused-roblox-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/free-game-card-roblox_GM431946152.pdfIn PDF document text
    • https://sunnygarden.com.tw/image/data/files/roblox-jailbreak-hack_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_off0000310c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310C 21708 bytes
SHA-256: 8ad22545dfc8fbf397e991a489aac5c064f869ac8dd686cbd7e9981baa2954d9
font_01_sfnt_off000060a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60A4 20176 bytes
SHA-256: 7f392c44b3df58e54e0fb37d4fc588d0043ae795cbd04bc5573eea7edab4a91a

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