Malicious PDF — malware analysis report

Static analysis result for SHA-256 294b96e6b1102eff…

MALICIOUS

PDF

41.0 KB Created: 2021-05-14 22:31:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6dd6972ea769f42a0014795eed525677 SHA-1: 4550abc3559a8ba9c947209753f45eb583b3a471 SHA-256: 294b96e6b1102eff6526b698c66f07f9499204ce10bfe5b9839f3b262c71afa9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links designed to lure users into clicking on "free generator / game hack" content. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URLs and heuristic firings clearly indicate a malicious redirection workflow.

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/how-to-get-free-roblox-game-hack In PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-get-free-shields-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-no-apps_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_off0000468b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x468B 24408 bytes
SHA-256: 6b43b20e8fb9f01dc7d73b345d4128b313e4577ee36bc97e0dbfd32789cfae29
font_01_sfnt_off00007dbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7DBB 18216 bytes
SHA-256: 4bd910cbe6e13e3cc1fd56827474962a0b5b839547430a6bf478c6dff96655e9