Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f51e370b196e589…

MALICIOUS

PDF

43.1 KB Created: 2021-05-12 16:33:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 99401c10511aa388763e86b42d9aaf33 SHA-1: 1ffcf5cafbc69fbc6be607f700619fa206e325ee SHA-256: 9f51e370b196e5898daaea6dd766973cbcdc44499020e7bff33700ece4f5e93f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one to a known malicious redirector infrastructure at `https://netcdn.xyz/app/406889139/coin-master-claim-spins-game-hack`. The document body and heuristics indicate a lure for a "game hack" or "free spins" to trick users into clicking the malicious link. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for malicious JavaScript execution if the user interacts with the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-claim-spins-game-hack In PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coinmaster-hack_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/10-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coinmaster_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/rbl-gg-free-robux_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
stream_003_off00004e09.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E09 25152 bytes
SHA-256: 19299ffa298eefe9fb354ef062671c4036c461710da69cc9d2dd3297b7ddb576
font_01_sfnt_off00008718.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8718 18056 bytes
SHA-256: 910bba4e9b8698471f084902004854848b7ccdb185fd175879c14395f4b2f674

Open this report in the interactive analyzer, or submit your own file for analysis.