Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdc7ece0789e23f9…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 10:35:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 699a906f7779aecdd4b01d616925be59 SHA-1: c8850e8fb498ee6ce65eeb3757b9fe05890aaf99 SHA-256: fdc7ece0789e23f9b1048cbe27ef3726bc457f29c0fee6b02d56be50dc6d3aa1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, with one prominent URL identified as a malicious redirector. This redirector is associated with lures for game hacks and generators, suggesting a phishing or scam attempt. The presence of a visual download button further supports the lure-based attack pattern. No scripts were extracted from this sample, limiting the analysis of further stages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/479516143/games-like-minecraft-but-free-game-hack In PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-roblox-money-2021_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/real-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/roblox-tp-to-me-hack_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/master-8-ball-pool-free-coins_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/can-a-roblox-exploiter-hack_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/best-free-hacked-client_GM479516143.pdfIn PDF document text
    • http://lib-smansumsel.sch.id/repository/master-coin-free-spin_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
font_00_sfnt_off0000353e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x353E 21724 bytes
SHA-256: 26a43d803af2288da50f22c67de0bf72cfb85ea5aeb74f84ff29dd42a61c0b55
font_01_sfnt_off000064b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B5 18644 bytes
SHA-256: 45333c73372c7943a74bef752753338b098f9514411db91a74ac505656791b6d

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