Malicious PDF — malware analysis report

Static analysis result for SHA-256 722157044dbff6cf…

MALICIOUS

PDF

33.7 KB Created: 2021-06-19 16:57:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 51e63682fa699d9fad7ebea90a2481db SHA-1: e84693e0be1f6c22e4c6e271f1ad5e65734dcb57 SHA-256: 722157044dbff6cfc1f7d1aff9e21c0b869eb8288e98fbbe807a1c035a1d2409
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links to a known malicious redirector infrastructure, specifically advertising free game hacks for Roblox. The document body and embedded URLs suggest a lure to trick users into visiting malicious sites, likely to download further malware or engage in credential harvesting. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-tiems-in-roblox-game-hack In PDF document text
    • https://www.gvandenakker.nl/images/login-robux_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/get-free-robux-points_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/how-to-make-everything-free-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/how-to-hack-roblox-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/how-to-hack-pizzeria-roleplay-remastered-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/coin-master-hack-fast_GM406889139.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/roblox-hack-script-penis_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/how-to-hack-roblox-catalog-2021_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/people-who-hacked-roblox-and-got-unlmitited-robux_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/roblox-hack-for-robux-with-out-a-veafication_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/hack-for-gta-roblox_GM431946152.pdfIn PDF document text
    • https://www.gvandenakker.nl/images/free-robux-generator-no-human-verification_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_off00002f6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6B 21512 bytes
SHA-256: adeafcf341d855cab2b8a47d8dd3992a4ccfb85bd6864e032935412a160b1079
font_01_sfnt_off00005ea4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA4 19112 bytes
SHA-256: fa1fce69421f8195ffb1cdb934f8cc85c5c56fcce3e3d30f822c63c2e0fbb0a6

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