Malicious PDF — malware analysis report

Static analysis result for SHA-256 c468092749517249…

MALICIOUS

PDF

47.4 KB Created: 2021-05-12 02:02:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3ded34c9dcadc008e51e038dd657f9fd SHA-1: 57ad4340f40cf5f194d458489e6fa3ee5bb21ffc SHA-256: c468092749517249cdab2665425ce4acdad7fd6757b860291a2b4ac8331894e0
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that redirect to malicious infrastructure, impersonating Facebook to lure users with a "Coin Master Spins Hack". The heuristic firings indicate a critical risk due to the malicious redirector and brand impersonation for credential phishing. The document body, though partially corrupted, contains the lure text and the primary malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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.xyz/app/406889139/coin-master-spins-hack-iphone-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.xyz/app/406889139/coin-master-spins-hack-iphone-game-hack In PDF document text
    • http://kingmusic.pl/images/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/spin-link_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-3533-android-hack_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://kingmusic.pl/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-free-coins-and-spins-daily-summary_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-no-downloading-apps_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-free-spins-and-coins-app-download_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://kingmusic.pl/images/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kingmusic.pl/images/coin-master-mod-version-free-download-34-4_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c6a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C6A 24860 bytes
SHA-256: 7838ce49af530fc89fe68d5e8820156f527689f4a5f798a684a90cda1779736e
font_01_sfnt_off0000858b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x858B 7332 bytes
SHA-256: d811e0aca85f3b94c42cd1240eec68b8eb378f3d8be5e408d3f6abd0f11f834d
font_02_sfnt_off000097a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97A4 18060 bytes
SHA-256: e81d352b07e1ce097e3d885718cd431adb2fa9f9fe53d93d172b47981e22424a

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