Malicious PDF — malware analysis report

Static analysis result for SHA-256 d69941b6b7508aab…

MALICIOUS

PDF

48.6 KB Created: 2021-06-09 07:18:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 10196569f41dc29dea09b9088a9287c5 SHA-1: 1ff6c0bc92232e02314f3ee0e145f9166915e0ba SHA-256: d69941b6b7508aabcb8e9b2f674028951187d36059d16a738652488d1c8ac431
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous external links, many with 'robux' and 'hack' in their slugs, suggesting a lure for game-related exploits. The presence of a 'download button' heuristic further supports a malicious download attempt. The document's content and structure strongly indicate a phishing or scam attempt, likely leading to malware or credential theft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.tw/app/431946152/how-to-get-free-robux-easy-ads-game-hack
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/robux-hack-android_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/put-cheat-codes-roblox_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/cool-free-roblox-charecters-uu_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/saber-simulator-roblox-hack-script_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/someone-hacked-me-on-roblox_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-hacks-on-roblox-streets_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/do-you-want-tons-of-free-robux-copypasta_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-do-you-get-free-skins-in-roblox_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/how-to-get-free-robux-without-verifying_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/hack-roblox-ccount_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-robux-hack-exe_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/copy-and-paste-free-robux-items_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/thebesian-get-roblox-ninja-animation-free-robuxian_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/free-robux-script-pastebin-2021_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/robux-hack-tools_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/flobfun-robux-gnrateur-free-robux_GM431946152.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/minecraft-free-online_GM479516143.pdf
    • https://srmap.edu.in/wp-content/uploads/fsqm-files/roblox-blue-tshirt-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051e9.bin
994d22eb891a2d5387ce8ade0ee066fc295870ac916c2ea0d780d66c20476294		 pdf-font-stream PDF embedded font (sfnt) at offset 0x51E9 26132 bytes
font_01_sfnt_off00008f1e.bin
c5e05bcc85276f2eb9a1ef6bbfe91cff33247b8cbfa0abe86f8723a70ed55c4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F1E 2940 bytes
font_02_sfnt_off0000993e.bin
319591314d6324676ebf02f1c153b068a881565ab30f55d70414dc83b3c91e07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x993E 18864 bytes

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