Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d1eadac132531fe…

MALICIOUS

PDF

35.1 KB Created: 2021-06-29 18:32:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 64410b139fab18fbfdbe4952c6f7cbbc SHA-1: 14a1c3b286c420b14a0b3a466bcdf0e8e5c67517 SHA-256: 6d1eadac132531fe49e7a1320af6d801ce460718e42e76043b60d0ca0fbaa649
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/roblox-free-robux-download-2021-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-connection-lost_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-spins-and-coins-com_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/john-doe-hacked-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-speed-up-jg-productions-roblox-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/a-hack-to-get-the-bage-admin-on-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-hack-today_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-apk-hacked-3526_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/hack-coin-master-apk-33_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-code-for-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-account-roblox-real_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/pastebin-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spin-coin-master-link-2021_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_off0000313d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313D 22048 bytes
SHA-256: c581b2dc6cae74bbafea3bf21e42425f7116bd7ae293c90fb4ac6757dfd28f2c
font_01_sfnt_off0000623a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623A 19696 bytes
SHA-256: 2f18db856df17145d0e5bc228c97ebac76d45dc2cf4ac9e9dfd807e9329954d7

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