Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f7b942d7c5df823…

MALICIOUS

PDF

46.9 KB Created: 2021-06-03 06:15:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3e03a263384893559934da7b56ae77d3 SHA-1: 6c9f0eedda80460f35e164df6a12faa25c73a7ab SHA-256: 0f7b942d7c5df823fa8683e7fd2d7036129274ce8a27c5fd8ba6eba632102c17
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically promoting free game hacks and generators. The document body, though partially corrupted, contains references to these lures and a URL that is also flagged as a malicious redirector. The presence of these links and the heuristic firings strongly indicate a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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/431946152/best-free-robux-sites-game-hack In PDF document text
    • http://slim.sisminkada.net/repository/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-tiktok-views-trial_GM835599320.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/pubg-uc-redeem-code-midasbuy_GM1330123889.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/coin-master-free-coins--spins_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/is-tiktok-pro-free_GM835599320.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://slim.sisminkada.net/repository/hacks-for-coin-master_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_004_off000051c6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51C6 29252 bytes
SHA-256: adf01d35ad2f75ed5e88a395bdd0223c1ff12b55ba433496f8433862a4d0006b
font_01_sfnt_off00009520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9520 18236 bytes
SHA-256: 68f5330c443815a71c203001c9650c5b168215c0ad869b16e6a359c0f2b36386

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