Malicious PDF — malware analysis report

Static analysis result for SHA-256 94570cb839d86c84…

MALICIOUS

PDF

44.8 KB Created: 2021-05-13 14:35:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 11c8a3518f4bf7146056f8e0b9ba85d6 SHA-1: ade95b770f0ceb494bfe10584857c2c8ae9d54af SHA-256: 94570cb839d86c841481bab71ba184709f84b9f6e1dfca4e9e0f0bf5d351d12c
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 "game hacks" and "free spins" for popular games. The primary lure URL is https://netcdn.xyz/app/406889139/coin-master-free-spins-today-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially harmful websites, likely for credential harvesting or further malware delivery.

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/coin-master-free-spins-today-game-hack In PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/apps-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-link_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/roblox-free-printables_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/coin-master-free-spin-and-trading_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-35-13_GM406889139.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-hair_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/minecraft_GM479516143.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.man4madiun.sch.id/__statics/gudangsoal/files/get-free-robux-no-human-verification_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_off00004a38.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A38 24608 bytes
SHA-256: ef94402543090ae2ccb6a289426c149cbd800dead97c77642da89c68b916ef26
font_01_sfnt_off000082b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82B0 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C9B 18240 bytes
SHA-256: a96ac7afd25cadbabafd1b9dbf0a180d0c1833ed2d07acb4363f122556c39d20

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