Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffddac2f7aa855ef…

MALICIOUS

PDF

46.5 KB Created: 2021-06-10 12:42:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 465bf0ac3dce66958d8ad9a9ea561034 SHA-1: eea5e9fa32a29fb33ecf1454c05c3c374869e056 SHA-256: ffddac2f7aa855efc05efdc9f03baf1eed59a30fc2bdf5ed28ce02799f6ad887
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as game hacks and free generators. The document body and embedded URLs suggest a phishing or scam attempt to lure users to malicious websites. Although no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the heuristic firings indicate malicious redirection and a lure for downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/hack-codes-for-roblox-jailbreak-game-hack In PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/cheat-roblox-uno_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-robux-for-downloading-apps_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-roblox-accounts-2021-march_GM431946152.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/free-tiktok-followers-no-verification-or-survey_GM835599320.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-code-free-robux_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-free-generator-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-roblox-girl-shirts_GM431946152.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/obc-free-robux_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/hacker-net-roblox_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-jailbreak-play-for-free-online_GM431946152.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/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/roblox-cheat-engine-no-viruses_GM431946152.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/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/free-audio-upload-for-roblox_GM431946152.pdfIn PDF document text
    • https://rplcertified.com.au/wp-content/uploads/fsqm-files/how-to-get-unlimited-money-in-roblox-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_off0000517e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x517E 27992 bytes
SHA-256: 8135d86f48bf2c26d5a59b6b789e37e2109aa58c9dca5e733fde0a0cd281d21f
font_01_sfnt_off000091ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91EE 18808 bytes
SHA-256: 2ce0ffbb1dc5f5f74c3a29126646e6eacf0a3c3ee9a0d6958b785632e81698ad

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