Malicious PDF — malware analysis report

Static analysis result for SHA-256 7af0762cc0495a8c…

MALICIOUS

PDF

48.8 KB Created: 2021-06-07 21:50:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7edb186d05c668497d374b8223ba1b79 SHA-1: f34f11bad399b9b67bebc9b4da71b59004d11c00 SHA-256: 7af0762cc0495a8cf3c2dabc1fdb84f539fc99fa0051248273cb7babf7f963ac
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector for a 'game hack'. The document body, though heavily obfuscated, contains references to the same malicious URL. This suggests the primary purpose is to redirect users to potentially harmful content, likely for further exploitation or malware delivery.

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/guest-roblox-face-hack-game-hack In PDF document text
    • http://www.drent.se/images/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/roblox-free-online-game_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/coin-master-card-collection-hack-apk_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/http-bitly-coin-master-free-2021-spins_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/minecraft-com-free_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/minecraft-java-free-account_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/tiktok-free-minecraft_GM835599320.pdfIn PDF document text
    • http://www.drent.se/images/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/roblox-como-tener-robux-gratis-2021-enero-nuevo-hack_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-2021-no-human-verification_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
stream_004_off000052ce.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52CE 26688 bytes
SHA-256: 311f8c11e7740e39ab79576cf13f410bdf254f4e93ce3f31baa9ec496f658921
font_01_sfnt_off00009100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9100 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009b10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B10 18588 bytes
SHA-256: 648cb2bce4322ee5a091e1d0f657492724f6c3ea252bf66f091b806942dec26e

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