Malicious PDF — malware analysis report

Static analysis result for SHA-256 6945d3ef96294553…

MALICIOUS

PDF

45.1 KB Created: 2021-06-08 19:32:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 20901d8ea37829419ecdcf469cce10df SHA-1: d797b2097610a42429ee9b23a8ef7e1f943e8cc0 SHA-256: 6945d3ef96294553bd7272d5d7c8dea7263ba2e1bbb7ddd0bfca95c4cec65161
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to malicious infrastructure. The document body, though partially obfuscated, contains text related to 'Roblox Cheat Engine Trainer' and a URL that aligns with the heuristic findings. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious nature of this document, likely intended to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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-cheat-engine-trainer-game-hack In PDF document text
    • https://schulzpressetext.de/images/free-tiktok-video_GM835599320.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-working_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-to-get-hacks-on-minecraft_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-generator-tool-download-link_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
    • https://schulzpressetext.de/images/roblox-get-robux-free-hack_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-co_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/hacks-para-los-juegos-de-roblox-gratis_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://schulzpressetext.de/images/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://schulzpressetext.de/images/coin-master-free-food_GM406889139.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
stream_004_off000051a7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51A7 25324 bytes
SHA-256: 743bcbd9207ac1a38dda326283bcbea20db6d1b0fecf45c46f2d6a28081c0c1e
font_01_sfnt_off00008c87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C87 18688 bytes
SHA-256: 8392be8b2797ef5a78df0f22fb2504168e85d954f80deeabadfaafb081c8985c

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