Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6ed372ad96c0d2…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 22:30:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5315ba150b17467ea3d5b248db4d2866 SHA-1: abf4e196e38b98d163169c9a9f46f9499a179a0c SHA-256: 0e6ed372ad96c0d22fa1b4b93ad3335cfdab7596a4608c8d5645450344ab7f19
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a 'link farm' structure, strongly suggesting it is designed to redirect users to external sites. The document body and extracted URLs focus on game-related cheats and free items, indicating a lure for potentially unwanted or malicious downloads. The ML classifier also flagged this PDF as malicious with high confidence.

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/good-free-to-edit-roblox-games-game-hack
    • https://pasca.unisba.ac.id/elibrary/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-roblox-accounts-v3rm_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/easy-ways-to-get-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/what-games-on-roblox-give-you-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/greenlegocats123-how-to-get-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/give-free-robux_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/level-coin_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-coins-cheat_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/500-free-coin-master-spins_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/hack-coin-master-for-iphone_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-spin-link-coin-master_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-get-free-robux-games_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-do-i-get-free-robux-2021_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-festive-paintball-cheat_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/finally-roblox-free-gifts_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/roblox-clone-tycoon-2-hack_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/free-robux-2021-no-survey-or-human-verification_GM431946152.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/how-to-hack-golden-card-in-coin-master_GM406889139.pdf
    • https://pasca.unisba.ac.id/elibrary/repository/what-you-can-do-with-cheat-engine-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fd5.bin
8de421384a80954e42caef0cb498638d4264501d06ea3b209a5013e3c46d439b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD5 22104 bytes
font_01_sfnt_off000060d3.bin
71661ac673ecd9e31a430bd76f7a41eef2151d011d9a5dbce209f5ce9c8645a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60D3 19308 bytes

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