Malicious PDF — malware analysis report

Static analysis result for SHA-256 9127e8950df864b9…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 08:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: faa5731ac6066727f014261f8f49bffe SHA-1: b98f997979cf7ec517655ed95efafb7ad82fea77 SHA-256: 9127e8950df864b9856f3229c2774e9d2c67d42edb76f4d9932c358228d0fe9f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, strongly suggesting it is designed to redirect users to malicious websites. The document body and extracted URLs indicate a lure related to game hacks and cheats for popular games like Roblox and Coin Master. The presence of a PDF_SEO_LINK_FARM heuristic firing further supports the conclusion that this document is part of a campaign to distribute malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/dust-trust-roblox-hacker-game-hack
    • https://library.stikeswnpalu.ac.id/repository/2021-hacks-for-robloxs-aimbot_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-game-hack-online_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/make-free-robux-com_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/roblox-free-virtual-item-codes_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/free-coins-on-coin-master_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-3rd-village-free-2021-gift-card_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/show-me-how-to-get-free-robux_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-create-a-minecraft-server-for-free_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-buy-robux-for-free_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-spins-hack-ios_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/best-minecraft-hacked-client-2021_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/pro-free-spins-coin-master_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/coin-master-free-coins--spins_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/free-roblox-hack-us_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/free-minecraft-survival-server_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/tai-roblox-hack-robux_GM431946152.pdf
    • https://library.stikeswnpalu.ac.id/repository/minecraft-free-download-pc_GM479516143.pdf
    • https://library.stikeswnpalu.ac.id/repository/master-coin-hack_GM406889139.pdf
    • https://library.stikeswnpalu.ac.id/repository/how-to-cheat-roblox-jailbreak_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002f07.bin
100f3ba387d24dac44bd1c78f957a50d6352a41b4163087b275d704d71278f50		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2F07 22460 bytes
font_01_sfnt_off000060ed.bin
9bbcd98c44a3dcb17453a2127f9282da81307e5ad07b85c7a2a9f11c63b83e00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 19068 bytes

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