Malicious PDF — malware analysis report

Static analysis result for SHA-256 1acd38bdf77fb8a9…

MALICIOUS

PDF

33.8 KB Created: 2021-06-19 16:56:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4ce7ca3afecbc86cf67abbda74bed692 SHA-1: d19217db7102982bca8738666c031d9b1d70315f SHA-256: 1acd38bdf77fb8a94c3461a34ca1acd9712234612b0094b2e4d7763692763b0c
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a prominent call-to-action related to free Robux and game hacks, indicating a phishing or scam attempt. The heuristic findings confirm the presence of a link farm and external URIs, suggesting the document is designed to redirect users to malicious sites. Although no scripts were extracted, the overall structure and content strongly suggest a malicious intent to trick users into downloading or visiting compromised resources.

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/431946152/50-free-robux-game-hack
    • https://perpustakaan.itda.ac.id/repository/comment-devenir-un-hacker-sur-roblox-2021_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-roblox-to-get-robux_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/free-robux-picture_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-2021-spin-link_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/minecraft-hacked-client_GM479516143.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-mod-apk_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/free-roblox-followers_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spin-daily-bonus_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-hack-into-my-roblox-account_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-spins-on-coin-master-android_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/treasure-hunt-simulator-roblox-cheat_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/roblox-the-island-2-cheats_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/roblox-robux-hack-no-survey-no-password-2021_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-heaven_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-robux-on-pc_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/actual-free-robux_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/blogspot-coin-master-spins_GM406889139.pdf
    • https://perpustakaan.itda.ac.id/repository/free-robux-no-human-verification-ipad_GM431946152.pdf
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-online-game_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e8d.bin
def094ec98625d94ec6d4d2e2864a4c9a048375d9bb8cad7333abb5cc435f6e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8D 21940 bytes
font_01_sfnt_off00005ee2.bin
52a4e50de44b1a82134a648b69e6f39332cac040d8cad7e2a4db2ce9b3f0ba2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE2 19024 bytes

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