Malicious PDF — malware analysis report

Static analysis result for SHA-256 1543437d4eb866b6…

MALICIOUS

PDF

46.6 KB Created: 2021-05-19 15:37:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 234a1270b963f8b6ce6b6b4ec1bd12ec SHA-1: 208886e92652da055e73bdc787ce611d7df5857d SHA-256: 1543437d4eb866b6c4ed3f9b775cc13443dfb81e2b426c7cfbdb33391c2c05c1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for free game resources, specifically for Coin Master, directing users to a known malicious redirector. The embedded URL is designed to trick users into visiting potentially harmful websites. The document's structure and content strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

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.xyz/app/406889139/coin-master-free-spins-link-blogspot-today-game-hack In PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/free-coin-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/daily-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/minecraft-116-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/free-robux-no-gift-card_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/coin-master-hack-app-for-iphone_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn3mojokerto.sch.id/__statics/gudangsoal/files/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • https://coinmasterspinandcoin.comIn 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
stream_003_off00004c38.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C38 25924 bytes
SHA-256: ad08490777d13079cb620a2090d86579f63e69156c39226de1ddbadba3590298
font_01_sfnt_off000087c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87C9 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off000091ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91AE 18988 bytes
SHA-256: 2b06b552feb9fdd10e7730fb6ea803097d4340a2e9acfe2d77736b6ed3bd8bee