Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e21815b36a3b4a0…

MALICIOUS

PDF

45.6 KB Created: 2021-05-17 08:36:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e6c1a09ae8c367eb13f0a6e6392f8fc4 SHA-1: db1ba89a4efa2a4890a37cb51c8d3c95ae58cf2d SHA-256: 9e21815b36a3b4a0bbdafd9ff25420ff3deb8795959834f904dad4cda4725567
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The ML classifier also flagged this PDF as malicious. The embedded links are designed to lure users into clicking, likely leading to further malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/479516143/minecraft-game-hack In PDF document text
    • https://encounternepal.com/userfiles/files/free-coin-master-spins-hack_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/mc-update_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-hack-coin-master-ios-jailbreak_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/roblox-com-free-play_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/20-free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-spin-27_GM406889139.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_off000049e2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49E2 28276 bytes
SHA-256: e81df07b314f8136b3365aac96c82cf68b998029df39637aa71ccf1da487a0bb
font_01_sfnt_off000087ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87EF 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off000091eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91EB 17568 bytes
SHA-256: ce96ee2cb1800a95c911c77dfe81c9a72a479049c6676c05affe2ae793ebac2d

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