Malicious PDF — malware analysis report

Static analysis result for SHA-256 941fa8f0ee1442fe…

MALICIOUS

PDF

36.4 KB Created: 2021-07-07 01:34:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-12
MD5: 4a78aa71697e8066d973b765b621a5d0 SHA-1: 720c3ba0fd7b63b08f63f1580375d57fa96549b5 SHA-256: 941fa8f0ee1442fe65d8ef132a372f0a96b8e58836a10e4100c6005c1d11327d
160 Risk Score

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/406889139/coin-master-free-spins-ios-app-game-hack In PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-minecraft-server-maker_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/oprewards-com-login_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-hack-into-roblox-acc_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-no-human-verification_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/do-coin-master-hacks-work_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-20210-robux-on-roblox-2021-for-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-roblox-account-with-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-and-coins-unlimited-free-download_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/robux-free-co_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-catalog-items-on-roblox-working-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/cheats-for-roblox-murder-mystery-2_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsnegeri12banyuwangi.sch.id/__statics/gudangsoal/files/2021-no-human-verification-hack-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
font_00_sfnt_off0000386e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x386E 23092 bytes
SHA-256: fdf5e3fcc801220e757de35dcb736887da712cc64de6c0dcd4d6dbd23c034487
font_01_sfnt_off00006c2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2F 18176 bytes
SHA-256: dc04036921b1963ee7132b828a33de2130f87ab3daccf07c14a967ac057e6417

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