Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ae9e2a2d52039ad…

MALICIOUS

PDF

46.4 KB Created: 2021-06-11 06:57:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 300cdd644a8e6a40af8b562564c5e0f8 SHA-1: d44487dfb335df8252b970be7b4b4a705976b3bb SHA-256: 8ae9e2a2d52039ad2e2bead0ed04df9f3de4fe7bf0c41c9a28dc2fb7b80249b9
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 0.9832

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.tw/app/431946152/how-to-kick-someone-on-roblox-using-cheat-engine-game-hack PDF link annotation
    • https://perpustakaan.itda.ac.id/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robloxbuddy-me-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-in-app-purchases_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-android-no-root_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/win-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/cheat-roblox-pc-phantom-forces_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/is-tiktok-app-free_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-connection-lost-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
font_00_sfnt_off00005402.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5402 25836 bytes
SHA-256: de3384747fa29a72bc523d3bb091b6721ff37543194f17be8619f1920ca19338
font_01_sfnt_off00008f43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F43 19468 bytes
SHA-256: 498892080bb496a2fcd6934056afeddcf65dc1ed7c27a5be6ce7409339e2b511

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