Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee2f98b7cf3a900…

MALICIOUS

PDF

34.4 KB Created: 2021-06-28 07:10:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 128abe7365144c29bef7b3a5cafad8be SHA-1: d2dfe857900d8ec0960c1395693c7128597cecb3 SHA-256: fee2f98b7cf3a900d6ddfb14fe683224b542e2687a231f1b83aed3e2c372555e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains numerous links to external websites, many of which are structured as a link farm for SEO purposes. The primary URL, http://netcdn.co/app/431946152/how-to-get-anything-for-free-roblox-game-hack, and the numerous other linked PDFs suggest a malicious workflow aimed at tricking users into downloading further content. The ML classifier also strongly indicated maliciousness.

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/how-to-get-anything-for-free-roblox-game-hack
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-studio-install-free_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/free-likes-and-followers-on-tiktok_GM835599320.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/roblox-rape_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-do-speed-hack-in-roblox-jailbreak_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/wall-hacks-and-aimbot-roblox_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-without-any-verification_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-daily-free-spins_GM406889139.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/can-you-hack-coin-master_GM406889139.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/how-can-you-get-free-robux_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/creepy-roblox-hacker_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/easy-ways-to-get-free-robux_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-free-spins-coins_GM406889139.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-without-human-verification-on-ipad_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/robux-generator-com_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-followers-on-tiktok-for-free_GM835599320.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/coin-master-hack-no-human-verification_GM406889139.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/real-free-robux-codes_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/free-robux-codes-2021_GM431946152.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/daily-coin-master-free_GM406889139.pdf
    • https://www.bathshoponline.co.uk/uploads/files/files/minecraft-java-for-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dd8.bin
93ce6e0046ff6b2cfc3bab4cbe349d470778e4c0d66c6cad444774cacecad613
pdf-font-stream PDF embedded font (sfnt) at offset 0x2DD8 22612 bytes
font_01_sfnt_off0000604e.bin
0a7c93fd14dec59e32c32c45251c89d1744fb8a8fc8f029446ba934a47481230
pdf-font-stream PDF embedded font (sfnt) at offset 0x604E 19384 bytes