Malicious PDF — malware analysis report

Static analysis result for SHA-256 e59f38fea961919c…

MALICIOUS

PDF

35.9 KB Created: 2021-07-05 20:43:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 47737538672b2baf67a9ff5a6f04d1f1 SHA-1: ec0ebcf9b2435f3cbb825d3b8b3690221e3c8b52 SHA-256: e59f38fea961919c2ad131620a7d66950b8a436f7fe48fd710cd19f04d8e25ff
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/406889139/coin-master-card-hack-apk-game-hack PDF link annotation
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/does-roblox-premium-expire_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/hacking-exploit-scripts-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-using-inspect-2021_GM431946152.pdfIn PDF document text
    • https://www.elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-get-robux-on-roblox-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/how-to-hack-a-roblox-account-with-cookie-editor_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/como-hackear-cuentas-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/robux-free-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/free-admin-commands-roblox-download_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://elearning.tawakkal.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-today_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_off0000369b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x369B 22728 bytes
SHA-256: 683a0585078765c5287c80974b2bc03e546d799e92d8c501ee445be8082f241a
font_01_sfnt_off00006967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6967 18352 bytes
SHA-256: 7a6741876b8a4f47fa99d807c74985d7cbc04f51e0567589917582e4a0dfbcea

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