Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d93c9a8d953e00e…

MALICIOUS

PDF

44.8 KB Created: 2021-05-11 15:40:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1b5c383dbc669200471d490b64dbd487 SHA-1: 7463433b2cb0518e3f1534d9f1278f074ae43b0e SHA-256: 0d93c9a8d953e00eba9bd705b78a62f477acda4b1f2a62d788d8f9d97adcbf21
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generators' and 'hacks' for popular games. The primary malicious URL identified is https://netcdn.xyz/app/406889139/free-spin-coin-master-ios-game-hack. The document body and embedded URLs suggest a lure for users seeking in-game advantages, which is a common social engineering tactic. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/free-spin-coin-master-ios-game-hack In PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/50-000-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/mcpe_GM479516143.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/coin-master-hack-online-no-human-verification_GM406889139.pdfIn PDF document text
    • http://lib.mesjidgedhe.or.id/perpuskauman/repository/to-get-free-robux_GM431946152.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_003_off00004ab6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB6 24880 bytes
SHA-256: 998bde23a4ff3c119a3b6b6dfbfdbd8f2324743ed938b736e54b0ff096494116
font_01_sfnt_off0000838e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x838E 2980 bytes
SHA-256: 7759d00b2b93864c79bc0fca70ffdcdc34d821ecd92b660f9baf4d82407f8209
font_02_sfnt_off00008de1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DE1 17884 bytes
SHA-256: 5eb2d7dbb743594663af058a86b176e9f3c663ad368d873d72479ee79bf44ad7

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