Malicious PDF — malware analysis report

Static analysis result for SHA-256 95ddb6558eadb94b…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 07:44:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: a45e36ad2b269bff2de8533d21cecb8f SHA-1: 4ffd16ef0b1f4478bb2c8e747fae8cdb14bcbf23 SHA-256: 95ddb6558eadb94b1b1e658913f7731172dfaf7cd1455f5fbb9d0ef301b36076
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. 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 0.9865

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.online/app/406889139/free-coin-master-gifts-game-hack PDF link annotation
    • http://library.futureuniversity.com/repository/play-coin-master_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/minecraft-free-download_GM479516143.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-hacks-no-human-verification_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-spins_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-printable-roblox-coloring-pages_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/real-robux-generator_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/jailbreak-script_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/free-robux-com-real_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.futureuniversity.com/repository/easy-robux-hack_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_004_off000051fc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x51FC 25196 bytes
SHA-256: 0fb7ea78c64613b361042b5cda9818df8bce0ef0a087c83094fb504415faadf6
font_01_sfnt_off00008c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C0C 17712 bytes
SHA-256: a02a8482596092bbe2b4efe270951b6f574c255f03fc3b97eeb87af209467e86

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