Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d699e4dfaa378b2…

MALICIOUS

PDF

41.0 KB Created: 2021-05-14 20:58:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 520336c7da3714b345d7c16cb14d9524 SHA-1: d8699faa6461339a08c28a47d2ec74453c817918 SHA-256: 8d699e4dfaa378b20a71a8ef7dff4cf3f2114491e62606ccb7bb58d933863de0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector, leading to game-related cheat sites. The primary malicious link, https://netcdn.xyz/app/431946152/where-to-get-robux-game-hack, is designed to lure users into potentially harmful content. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious infrastructure, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/where-to-get-robux-game-hack In PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-tricks_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox40com-robux_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-heaven-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot-april-2021_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/static-moonactive-net-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
    • https://www.mjcorporatemall.com/uploaded_files/userfiles/files/coin-master-unlimited-spin-link_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
font_00_sfnt_off0000475b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x475B 23832 bytes
SHA-256: 5900f0dcd39bde28cab3ab05d96d959855a46bed391863915bae31800272b6a3
font_01_sfnt_off00007d97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D97 18316 bytes
SHA-256: 5d084a82250710db6b98a0dc3f702c66b679dd89c140e62c2649391066269139

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