Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc036d2fcce8ca2f…

MALICIOUS

PDF

43.8 KB Created: 2021-05-17 17:31:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 839e9472bed115283cf0202571b4a4ee SHA-1: 3f7e3b4fd7817512f7751f09bfbdbaf96c113bc3 SHA-256: bc036d2fcce8ca2f480304982d726e4b924e71ed2418f242bbb3641ae53f4a34
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that lure the user into downloading a file, likely a game hack or cheat. The ML classifier strongly indicates maliciousness, and the presence of multiple suspicious URLs suggests a phishing or malware distribution attempt. No scripts were extracted, but the document structure and external links point to a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-you-get-free-robux-game-hack In PDF document text
    • http://revival-gang.de/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/get-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://revival-gang.de/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/minecraft-pe-free-download_GM479516143.pdfIn PDF document text
    • http://revival-gang.de/images/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://revival-gang.de/images/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://revival-gang.de/images/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://revival-gang.de/images/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://revival-gang.de/images/hack-coin-master-xyz_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
stream_003_off000049e2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E2 27116 bytes
SHA-256: b4fa5cdbe0bd46b94ca01eec5e9fe84ff12855f404f45e2d00a250c1d4fb0699
font_01_sfnt_off00008844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8844 18444 bytes
SHA-256: d3aeb47c5138bb2f7afdc1cd1986e008461219f841fd4d3ae6acb877e9db5a0e

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