Malicious PDF — malware analysis report

Static analysis result for SHA-256 09fffe244c729384…

MALICIOUS

PDF

43.9 KB Created: 2021-06-03 13:15:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5f3ba332f1a4ee5710eafaba5bea1357 SHA-1: b3993d667bd83f7f1d54125feeccd9a983e5a3e8 SHA-256: 09fffe244c729384a2c1c7d7ca7e075353988602be7244d3aca1d59add5999c3
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to malicious redirectors and impersonates the Facebook brand to lure users into clicking on a "free generator / game hack" link. The primary malicious URL identified is https://netcdn.online/app/406889139/coin-master-cheat-codes-free-game-hack. While no scripts were extracted, the document's structure and embedded links strongly suggest an attempt to facilitate credential phishing or deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.online/app/406889139/coin-master-cheat-codes-free-game-hack.
  • 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-cheat-codes-free-game-hack In PDF document text
    • http://lib.stiesultanagung.ac.id//repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/tiktok-free-download-windows-7_GM835599320.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/tiktok-free-key_GM835599320.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/coin-master-official-fan-page_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/pubg-uc-to-pkr_GM1330123889.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id/repository/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stiesultanagung.ac.id//repository/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000050e6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50E6 25088 bytes
SHA-256: b7b3a6e1c3be8fba637ea02ccf61abde9940bcad53110169adb5abb9fe47d1f4
font_01_sfnt_off000089d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89D8 18052 bytes
SHA-256: e1f7dc216c669c22560805cc0a50cb8b77f141bfe6c38f33d25df223dbe053b5

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