Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c7de5da64b56038…

MALICIOUS

PDF

37.6 KB Created: 2021-07-04 23:12:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 60970b710f20a347c8578d32d34a2ba8 SHA-1: c8faf5bc04d13be4f0776548a186b9d72918ec12 SHA-256: 9c7de5da64b5603847558d44393a8ebc01563ceca5d97cf639aeb1986924335e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to known malicious infrastructure. The document body and embedded URLs reinforce this, indicating a phishing attempt to trick users into visiting a malicious site. No scripts were extracted, but the primary attack vector appears to be a malicious link within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

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/406889139/free-coins-and-spins-coin-master-game-hack In PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/pubg-uc-gift-card-free_GM1330123889.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/ben-10-universal-showdown-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/tiktok-free-nose-job_GM835599320.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-get-free-robux-and-builders-club-on-roblox_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/vortexx-roblox-free-robux-pastebin_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/free-roblox-followers-generator-2021_GM431946152.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/tiktok-free-views-trial_GM835599320.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • http://e-lib.smaxaverius5.sch.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A6 22812 bytes
SHA-256: f24bf065f3141e3e3398f9a3822e40a65f4dcbc03a4ae43eaf267e68f65e2d3d
font_01_sfnt_off000065f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F0 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00006fd5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD5 18348 bytes
SHA-256: c90f632020bcb1e728f62a43997badda2860e0d329262e99dedc1f8a12c39115

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