Malicious PDF — malware analysis report

Static analysis result for SHA-256 e419136c7d2e432d…

MALICIOUS

PDF

48.9 KB Created: 2021-05-17 10:32:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d5bcc0f298fe851d13f7dcd811fa23f7 SHA-1: d59872d0664961a7da1e0ac619347e3a2ea371c6 SHA-256: e419136c7d2e432d1ba9269068775d751562da8a06721e8b0f8eb765dd591743
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9228

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/free-robux-2021-no-human-verification-game-hack PDF link annotation
    • https://ethraa-sys.com/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-rare-cards-hack_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/inappropriate-roblox_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-minecraft-education-edition_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-hack-ios-download-2021_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-hack-apk-download-for-android-mobile_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-to-use-wurst_GM479516143.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa-sys.com/userfiles/files/coin-master-hack-apk-35-33_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_off00004bdf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BDF 28352 bytes
SHA-256: 04975656bdfa9b7fc8fe90fefd47f26973692abd81d9e9b893ab147bb9348b70
font_01_sfnt_off00008eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EBA 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_02_sfnt_off000099ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99CE 19260 bytes
SHA-256: a5b009a33d06eb91b5687aca452054299973906144ac3f9b2fc2dd0e2fef1dac

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