Malicious PDF — malware analysis report

Static analysis result for SHA-256 5874535229568eb3…

MALICIOUS

PDF

48.0 KB Created: 2021-06-01 01:32:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 20790bb3abcd5c45bc1667c1e2a04360 SHA-1: 1e7309280970c89a06fb45a06478ad996927fadc SHA-256: 5874535229568eb3e5faacc70609c8380109ea520b6597f1090781016dfd101d
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 a known malicious URL. The document body also contains this URL, reinforcing the lure. The ML classifier strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack pattern is a social engineering lure to a malicious redirector.

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.xyz/app/431946152/free-gun-roblox-game-hack In PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-gun-games-free_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/exploit-that-works-roblox-free_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/the-only-free-robux-game-that-works-1_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.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_off000053b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53B5 25900 bytes
SHA-256: e8d67cdd9289e41f49a67ae55f830c5d6c8c5d494831e84477e53167fb224417
font_01_sfnt_off00008f88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F88 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9997 18088 bytes
SHA-256: c27c38b9193ad66fd6d2d935077c2c739c274c0fe094f10c77bbc7193b696125

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