Malicious PDF — malware analysis report

Static analysis result for SHA-256 589a89ecc83383ea…

MALICIOUS

PDF

34.7 KB Created: 2021-07-07 06:50:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9b37134bb6060afa43f41a52e44ea43d SHA-1: 6deac1bbcf2ab89167d9ab6baf9fe22720f91ea6 SHA-256: 589a89ecc83383ea6c1236364b7aea278229bd885367a811579fd6d013d7b7ed
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 0.9980

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 http://netcdn.tw/app/431946152/how-to-hack-into-someones-roblox-account-game-hack PDF link annotation
    • http://www.producthubhob.com/uploaded_files/userfiles/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/powering-imagination-free-robux_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/robux-accounts-free_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/mobile-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-promo-code-2021_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/sign-up-for-roblox-for-free-safe_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/roblox-card-hack_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/oprewards-login_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/create-an-audio-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/comeent-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/freespinandcoin-blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://www.producthubhob.com/uploaded_files/userfiles/files/hacked-version-of-roblox-case-clicker_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
font_00_sfnt_off0000315d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x315D 21884 bytes
SHA-256: 207b13c4980fc53d3c261e60c5b98996c958217362d8092c381888050fbc5b7a
font_01_sfnt_off000061af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AF 19324 bytes
SHA-256: 24cbb78c2e4d02f15d6dff94c04074d97d349401c8d74d3264b26149d869587d

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