Malicious PDF — malware analysis report

Static analysis result for SHA-256 e86888277ba6fc7f…

MALICIOUS

PDF

41.8 KB Created: 2021-05-13 11:02:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 2c361d78218b86ae02851f8907d0b176 SHA-1: ba70dead7f363d4f527fc8477a4557b5be3665f3 SHA-256: e86888277ba6fc7f0b0e6b6f30696d32551b7dacd1f8a4cf77a5cc4ba2f8de38
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to a malicious URL. The presence of multiple embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the document structure and embedded links strongly suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/free-robux-codes-no-human-verification-game-hack PDF link annotation
    • http://ilifemarket.ru/images/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
    • http://ilifemarket.ru/images/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
    • http://ilifemarket.ru/images/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://ilifemarket.ru/images/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://ilifemarket.ru/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://ilifemarket.ru/images/give-free-robux_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://ilifemarket.ru/images/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ilifemarket.ru/images/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ilifemarket.ru/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • http://ilifemarket.ru/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/http-blackgamesus-coinmasterhack_GM406889139.pdfIn PDF document text
    • http://ilifemarket.ru/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://ilifemarket.ru/images/coin-master-vip-hack_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
stream_003_off00004714.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4714 24428 bytes
SHA-256: e87241a64df42481a1cd09f12c7e800ddae44e81048761685fa9fd31453b9f1f
font_01_sfnt_off00007ec0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EC0 19032 bytes
SHA-256: 7535c842b13f5ab09a8d1f6df205e44a1f60a7fdf3d88b4466f5e7b4ed5bfe6e

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