Malicious PDF — malware analysis report

Static analysis result for SHA-256 2decdd400fc71cd5…

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 23:37:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f05e657050792fc9860b9df3f09f76cb SHA-1: fe0b84bf3458b72557e45f24b18fdee836f756ba SHA-256: 2decdd400fc71cd53fe251b7d6ebb6cb530a21694eb285b1ced5b62f06eb999a
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a lure for game hacks and free spins, directing users to a malicious URL. It displays a fake CAPTCHA to trick users into interacting with the document. The primary goal appears to be redirecting users to potentially malicious websites for fraudulent purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/406889139/coin-master-daily-free-spins-link-game-hack PDF link annotation
    • http://slims.abulyatama.ac.id/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-8-ball-pool_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/earn-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/worst-roblox-avatars_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-spins-coin-master-links-blogger_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-exploit-lvl-7-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/tiktok-free-views-and-likes_GM835599320.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_004_off00004fc3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FC3 24404 bytes
SHA-256: a27a69cd8c431e901e9a75e350666cceb5a6bb42181d4ec3647b37969526bd72
font_01_sfnt_off000087ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87AB 18476 bytes
SHA-256: dd1e9edcae6782c480dff53724a1580fadec54e6656b8ddfb273bcd699f2c343

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