Malicious PDF — malware analysis report

Static analysis result for SHA-256 61c7ee8a8aec8531…

MALICIOUS

PDF

41.0 KB Created: 2021-05-14 16:03:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7a7682f2f560d0d07c2df16e0c002eb6 SHA-1: 097063ba9b7f0ae2e15d1f42a0c7ee28ff3aab23 SHA-256: 61c7ee8a8aec85317cb709cf8363c724226a4d5e540f327bd045cef08ddaea05
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of game hacks and free currency to entice users. It contains multiple embedded URLs, with a primary focus on directing users to a known malicious redirector infrastructure. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lead users to potentially harmful content or further malware.

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-free-spins-cheat-deutsch-game-hack In PDF document text
    • http://www.comitatoiseo.org/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/minecraft-education-free_GM479516143.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.comitatoiseo.org/images/how-to-get-free-robux-on-pc_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_off000046df.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46DF 24004 bytes
SHA-256: 4eebd58fc18a5e377130a2123865536df49770c9a050140a6311f08ef06e390c
font_01_sfnt_off00007d87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D87 18360 bytes
SHA-256: 29c800506a03a3e1cb5f7ed9e4ca185df1ecbea4e67b5de69ba2e14adc8da31f

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