Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ad07f5873044b2f…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 17:50:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0533a095e462a10629411eeb5c9b1004 SHA-1: 9c62335cc86e0f955d7b1eb48e2a9fbcaa64e9ff SHA-256: 6ad07f5873044b2fb5d99f181cea1143db2bd5a400109ecc2b3b26ec4b6f4317
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.co/app/431946152/free-robux-promo-codes-2021-game-hack PDF link annotation
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-hack-no-human-verification-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-hacks-for-gold-cards_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/daily-spin_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/pubg-uc-hilesi_GM1330123889.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/robux-app_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/coin-master-100-spin_GM406889139.pdfIn PDF document text
    • https://elearning.man2semarang.sch.id/__statics/gudangsoal/files/play-roblox-for-free-on-google_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_off00002fe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE6 22072 bytes
SHA-256: 60c0ee3fcf5ba1118b0c7c316913a3cd5504295610f372687a0e8f2e26fe4649
font_01_sfnt_off000060c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C4 19708 bytes
SHA-256: 4ffa5120539f8d9e821cc62be6a3cc920cc67344a1ea2f390d2f58e18d351055

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