Malicious PDF — malware analysis report

Static analysis result for SHA-256 acaea74059e3372a…

MALICIOUS

PDF

35.4 KB Created: 2021-06-28 20:03:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6bee5fa03e91724db9c3ca5d8386de55 SHA-1: b2752577eb34a867add8beb040d3d3abbc896237 SHA-256: acaea74059e3372ab9a8bf391a068bdbdb26d47bcd8dcf7f95aa11edc78dea71
102 Risk Score

Malware Insights

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

This PDF document contains numerous embedded URLs and a prominent external link, all related to game cheats and hacks, indicating a lure for users to download potentially malicious files. The ML classifier and PDF link farm heuristics strongly suggest malicious intent. The document body, though partially garbled, contains the URL http://netcdn.co/app/431946152/roblox-hack-com-password-game-hack, which is likely the primary download destination.

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/roblox-hack-com-password-game-hack
    • https://perpustakaan.stifar.ac.id/repository/free-coins-on-coin-master_GM406889139.pdf
    • https://perpustakaan.stifar.ac.id/repository/roblox-cheat-name_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/roblox-hack-download-prison-life_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/haktuts-free-spins_GM406889139.pdf
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-free-robux-instantly-2021_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/roblox-com-free-robux_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/coin-master-free-spins-link-blogspot-today_GM406889139.pdf
    • https://perpustakaan.stifar.ac.id/repository/videos-of-how-to-get-free-robux_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-robux-for-free-on-pc-gift-card_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/free-robux-live_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/get-free-spins-for-coin-master_GM406889139.pdf
    • https://perpustakaan.stifar.ac.id/repository/free-online-roblox-obbies_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/roblox-murderer-mystery-2-cheat-codes_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/how-to-get-the-snowman-package-free-in-roblox_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/roblox-how-to-get-a-dominus-for-free_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/can-you-get-robux-for-free_GM431946152.pdf
    • https://perpustakaan.stifar.ac.id/repository/coin-master-hack-download-android_GM406889139.pdf
    • https://perpustakaan.stifar.ac.id/repository/free-spins-coin-master-april-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003088.bin
7e92f2c5e125913ae8b4c8e686f51c42ea035553272358b0fb73d455273d2988		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3088 23032 bytes
font_01_sfnt_off00006418.bin
2af12e5b02788eaa2aa3de93193461ce65ce912d17e15e315f8df3c9f62df03f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6418 19408 bytes

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