Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c949609ae3238f0…

MALICIOUS

PDF

35.1 KB Created: 2021-07-01 12:49:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6740a87c6aeadb7006f7849c15a32882 SHA-1: 5ac8e0aac006fdedc4f58a0fb0b5e5eab2cd19eb SHA-256: 8c949609ae3238f00d73ecee72b6b1a2e842c403a05e10ff30c2d3dc03587350
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The embedded URL, http://netcdn.co/app/431946152/hack-money-lumber-tycoon-2-roblox-game-hack, likely leads to a malicious site designed to exploit user interest in game cheats. While no scripts were explicitly extracted, the PDF structure and embedded URI strongly suggest a social engineering attack.

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/hack-money-lumber-tycoon-2-roblox-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/how-to-make-everything-free-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-free-gamepass-v3rmillion_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/hacking-into-robloxs-account_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/app-master_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-cheat-engine-64-codes_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-free-robux-with-synapse_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-and-spin_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-robux-website-no-verification_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/when-was-minecraft-free_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/games-in-roblox-that-give-you-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-get-free-stuff-in-roblox-dragon-riders_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-anthro-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-roblox-jailbreak-private-server_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/blox-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-coin-spin_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_002_off000030a8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30A8 22504 bytes
SHA-256: 3e8938c22c15d9dbe34ef7f5fb652981f813969e7c4ab9df1a567f925af3c971
font_01_sfnt_off000062c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62C1 19556 bytes
SHA-256: 2303c9f4a3f1220c5ac0324d1d2366510f08a9d01b4dd3d570afd3b9253736f0

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