Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7650f8d8a6e3f85…

MALICIOUS

PDF

34.2 KB Created: 2021-07-03 17:30:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a4954bc4fd9db662be709474bf40afcd SHA-1: 7935c9bf1fcb2c9b582d9a9469475b60420186b5 SHA-256: e7650f8d8a6e3f85232fc56be64011aab5309b5fdaa568cd08462e0f1d77e4fc
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 0.9980

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 http://netcdn.tw/app/431946152/free-robux-no-password-game-hack PDF link annotation
    • https://www.sonestad.se/library/repository/how-to-get-free-money-in-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-gang_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/earn-free-robux-gg_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-play-minecraft-for-free-on-computer_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-hacks-for-roblox-apoc-rising-for-windows-7-pro_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/clash-royale-legendary-cards-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/ww-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/coin-master-free-fire_GM406889139.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/roblox-free-model-scripts_GM431946152.pdfIn PDF document text
    • https://www.sonestad.se/library/repository/haktuts-coin-master-free-spins_GM406889139.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
font_00_sfnt_off00002ea8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA8 22188 bytes
SHA-256: 1a79ca73dcb5e5ac8d612e1c44c7925c5402d0b8eaf267b58dd8247641947b22
font_01_sfnt_off00005ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF6 19208 bytes
SHA-256: 6b3d0efb3debf488fe81ea92b60c01ccbae5249fd0a29fdced25ee5be01c6081

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