Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c80e666b598387a…

MALICIOUS

PDF

34.2 KB Created: 2021-06-19 01:07:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e42e5d406d8c3f458aa5b0e0930ec7f0 SHA-1: 8cfc6bcd42b26be7a358c03301ae9a3e0818f1b5 SHA-256: 9c80e666b598387aead1eec8850164daa0e5bb442eeade4334021e3a9d9ecb31
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for a 'Roblox Hack Cheat Engine' and embeds a URL pointing to known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary IOC is the malicious URL used to distribute the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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 http://netcdn.co/app/431946152/roblox-hack-cheat-engine-6.5-game-hack In PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-robux-hack-download-mac_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-one-piece-pirates-wrath-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-nation-com-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/hacker-decal-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-robux-kozak_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/can-hacking-in-roblox-get-youarrested_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-roblox-game-card_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-under-fighters-2-hacked-apk_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/cheats-for-terminator-genysis-alpha-for-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-accounts-roblox-2021-september-2021-live_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-swearing-hack_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/how-to-hack-roblox-accounts-2021-june_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-5-million-robux_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-dominus-free-2021_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/free-minecraft-games-for-kids_GM479516143.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/glitch-free-items-roblox_GM431946152.pdfIn PDF document text
    • https://apply.skubi.eu.org/wp-content/uploads/fsqm-files/roblox-easy-robux-cheat_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_off00002e05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E05 22496 bytes
SHA-256: 15d17812c48fc6ec4dd5f6f54d59b49ee1c2f478e900b53f88928d58db1d8f32
font_01_sfnt_off00006019.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6019 19228 bytes
SHA-256: 46b81e46e8f9af61c53b5bf381eb321787ef8d147e6c691bea7fff969e7fef4d

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