Malicious PDF — malware analysis report

Static analysis result for SHA-256 17413adb8ef9ad54…

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 14:14:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e66e8ab61521443a9c7692c35f1bebc6 SHA-1: 868475e96f3e25d92397c2986bb4cfb2a617482a SHA-256: 17413adb8ef9ad548c5c10b69786969031820fcfa02bde22a39bfdd59dd14e1d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/custom-script-executor-free-roblox-game-hack. The document body and heuristics indicate a lure for game hacks, likely leading to the download of a second-stage payload. No scripts were extracted from this sample, but the embedded URLs and the nature of the lure strongly suggest a phishing or malware distribution attempt.

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.co/app/431946152/custom-script-executor-free-roblox-game-hack In PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/hack-robux-illimit_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-in-app-purchase-hack_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/hack-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/www-roblox-robux_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/official-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-op-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/shadowrun-cheat-codes-roblox_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.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_off00003349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3349 22724 bytes
SHA-256: 18c8b04d0961e2f1ae6dcc149da4034b52f336930ee72a50d51d93ad8ad42e9c
font_01_sfnt_off0000661a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661A 19448 bytes
SHA-256: 988f95fcf78b8ac1290ecc0d2f729e2b6bbf23384ebbb397bfbd4afb8e75a5d6

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