Malicious PDF — malware analysis report

Static analysis result for SHA-256 6da036f413800eb4…

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 09:15:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 070dd5724436dd92544818a0e5455f96 SHA-1: 9ce0ea2bb24367ef94c9bc0fe5958756ab4ad1f4 SHA-256: 6da036f413800eb4fea9ccf94e9af8a8797b5027ab87c770a0cd333b9bbc7173
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector infrastructure, specifically advertising 'free generators' and 'game hacks' to lure users. The document body, though heavily obfuscated, contains a URL that aligns with the malicious redirector findings. This suggests the primary goal is to trick the user into visiting a malicious site, likely to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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.online/app/835599320/free-tiktok-followers-no-human-verification-game-hack In PDF document text
    • http://atrax.hr/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.atrax.hr/files/coinmaster-spins_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-hack-on-boombox-island-roblox_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://atrax.hr/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://atrax.hr/files/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
    • https://www.atrax.hr/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.atrax.hr/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://atrax.hr/files/best-minecraft-hacked-client-2021_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_off00004cd5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CD5 28588 bytes
SHA-256: 530300e716d291624aff8884719d18670732f0e36d796938ebfdd07c862b0415
font_01_sfnt_off00008d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D79 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00009776.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9776 18456 bytes
SHA-256: 6fa1441c1a321216f6114c799401e851ec7285796cff0c56691a74954fdf2722

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