Malicious PDF — malware analysis report

Static analysis result for SHA-256 aea3ee647904f907…

MALICIOUS

PDF

33.5 KB Created: 2021-06-29 12:51:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 3232885db645aec490f7a13cc4b9b845 SHA-1: 185699cdb14522b77adce04d28b325573b0c0432 SHA-256: aea3ee647904f907d1174ed83d219fc80f7c08edc8142375b9c1af94d2a95618
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 0.9824

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/escape-room-roblox-cheats-theater-game-hack PDF link annotation
    • http://educhina.mn/editor/files/how-to-generate-free-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/haktuts-free-spins_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-free-dominus-roblox-youtube_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/como-conseguir-robux-gratis-sin-hacks-pato_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/can-you-geet-banned-for-using-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-chip_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-free-spins-link-ios_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/synapse-roblox-free_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-tell-if-your-roblox-account-got-hacked_GM431946152.pdfIn PDF document text
    • http://educhina.mn/editor/files/coin-master-daily-free-spin-app_GM406889139.pdfIn PDF document text
    • http://educhina.mn/editor/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.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_off00002b2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2C 22532 bytes
SHA-256: fc8d722bd365fe51d2f8dd3496925f4ef1f1b1689ddada372d436c2c38dca218
font_01_sfnt_off00005d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D84 19192 bytes
SHA-256: aa528d538c5070c22bd84ab32f250676b4e7211970e220b8600d212b4c7d900b

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