Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce45ad9505e24113…

MALICIOUS

PDF

48.6 KB Created: 2021-06-04 00:03:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ff5c7a83f4b6bc542c48642e2c65ce27 SHA-1: 80c2560a9ad1e4f5b8e62cadc3d809449e36cfc2 SHA-256: ce45ad9505e24113f341a62a1751e6f91069a59ff9e4836290210badeeb7b077
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free spins" for popular mobile games. The primary malicious URL identified is https://netcdn.online/app/406889139/coin-master-free-spins-link-hack-game-hack, which is repeatedly linked from the document. The document body and heuristics indicate a lure for potentially unwanted or malicious content, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/406889139/coin-master-free-spins-link-hack-game-hack In PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/minecraft-font-free_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id/repository/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://libsmpn1balongpo.sch.id//repository/coin-master-free-spin-link-app_GM406889139.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
stream_004_off000053d5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x53D5 27792 bytes
SHA-256: 7a50cbacb058b4c17c4832f517b333a862f4233e5d4e3b193ced68a4b746882f
font_01_sfnt_off00009225.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9225 2880 bytes
SHA-256: b053084cafd01c649462d87667ba56c569d6480ce60e7d20ae57ef6124cf178e
font_02_sfnt_off00009c10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C10 18056 bytes
SHA-256: 654168d3b6bcb61be570e1238605831ee66fed80d87ac67967dd188319cba9ee

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