Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e2b8d38fb2d6395…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 09:34:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 04219dbe0189fbb72b1db05bc87d0623 SHA-1: 30d65c27157867f38d7fbe38156d6f9fa749d727 SHA-256: 6e2b8d38fb2d63954ae6f5a596beed495c5d66ee5e23161d7f3adc02c4f681ef
160 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins" to lure users. The ML classifier strongly indicated maliciousness, and the document body, though heavily obfuscated, contains URLs consistent with the heuristic findings. The primary attack pattern involves tricking the user into clicking a malicious link, likely to download a second-stage payload or lead them to a phishing site.

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/406889139/coin-master-hack-version-apk-download-game-hack In PDF document text
    • http://safeandsecurelocksmith.ca/images/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://safeandsecurelocksmith.ca/images/roblox-login-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
stream_003_off00004b92.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B92 24528 bytes
SHA-256: d9bd4913a68267735306a784c9b3f7f19c412a8fd74c114da2b6a932ab655d9f
font_01_sfnt_off000083d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D4 18608 bytes
SHA-256: 1dc11e7f68bd978fc0a92f78b05146ad1c6754ecfa484bd6206fefa9f56aad89

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