Malicious PDF — malware analysis report

Static analysis result for SHA-256 0175e5eb03ee5007…

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 20:40:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 66a1d70f870da755883377d38599f886 SHA-1: a494c67058364940d9d687477b524200f2ad3b72 SHA-256: 0175e5eb03ee500785435456f58f310e2657919cb0d3a585b3ed8e62dc6841eb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that claim to offer game hacks and generators, such as 'free Robux codes'. These links are flagged as malicious redirectors, indicating a high likelihood of leading to phishing pages or malware downloads. The document body and heuristics confirm the lure is related to game cheats, and the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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.xyz/app/431946152/free-robux-codes-no-human-verification-game-hack In PDF document text
    • http://deyuan-pc.com.tw/images/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-cheats-and-hacks_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/minecraft-cheats-pc-2021_GM479516143.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://deyuan-pc.com.tw/images/coin-master-today_GM406889139.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
stream_003_off0000454a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x454A 25072 bytes
SHA-256: f938a96076581124134b64e9e0c05f52d460d73f186ab7ecd91272e9a53d42d0
font_01_sfnt_off00007e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E76 2852 bytes
SHA-256: e9630f3bb738ae3bc329a423cf069c8035d70ce2227e3557c42815f85ad3284f
font_02_sfnt_off00008837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8837 19032 bytes
SHA-256: 7535c842b13f5ab09a8d1f6df205e44a1f60a7fdf3d88b4466f5e7b4ed5bfe6e

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