Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ec533a2b1bb84a…

MALICIOUS

PDF

48.4 KB Created: 2021-06-03 10:22:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 001b8fc0460087ca59e7a675ba001e6d SHA-1: c38a0eb569516077014f85962aaeda03527a65b9 SHA-256: e9ec533a2b1bb84a7d520e6890df5cad7e84637a22481ffa89a574557c7da5e2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that masquerade as game hacks and free currency generators, specifically targeting Roblox and Coin Master. These links redirect to malicious websites, likely to distribute malware or conduct phishing. The presence of multiple game-related lures and the ML classifier's high confidence score indicate a malicious intent to deceive users into clicking through to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/roblox-hack-client-game-hack PDF link annotation
    • http://abdinusababellibrary.ac.id//repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/flip-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/app-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/best-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-coin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/get-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://abdinusababellibrary.ac.id//repository/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000505b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x505B 25916 bytes
SHA-256: cfd4e37368b6796ec5486b0102331e82765ef03bd6e1bb90765be6becbcf39c9
font_01_sfnt_off00008cdc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDC 3992 bytes
SHA-256: ca9cd4f0345d8483bda3e807ea4e40142b8bf70d3672af2d6a5dd7953d1a2391
font_02_sfnt_off00009a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A02 18408 bytes
SHA-256: 550f62bb1f49814ef42b1b735b63b4edf215944f9d7482118736a3d91d594bfc

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