PDF malware analysis — malicious · 3cdb9690d2990e7e

MALICIOUS

PDF

45.1 KB Created: 2021-05-30 22:56:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: a0f909d820e38a17dfdb132d05d54c58 SHA-1: e85ccf013b60cd9fb437d3c7d3c79d6344945185 SHA-256: 3cdb9690d2990e7e44ad375ffa2c4fcd690916639798bc5182c96f7f0f4e654e

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, that direct users to websites offering free game accounts and downloads. The primary URL, https://netcdn.xyz/app/479516143/minecraft-pe-free-apk-game-hack, suggests a lure for game-related exploits. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious workflow designed to drive traffic to external, potentially harmful, resources.

Machine Learning

Nyx PDF Classifier malicious score 0.9427

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.xyz/app/479516143/minecraft-pe-free-apk-game-hack
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-get-a-free-minecraft-account_GM479516143.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-download-minecraft-for-free-on-pc_GM479516143.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-roblox-accounts-with-robux_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-minecraft-account-and-password_GM479516143.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-easy-no-download_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/coin-master-free-spins-link-2021_GM406889139.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/best-minecraft-hacks_GM479516143.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/freer-pro-tiktok-fans_GM835599320.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/rbx-gg-free-robux_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-texture-packs-for-minecraft-pe_GM479516143.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-tiktok-likes-app_GM835599320.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-play-minecraft-for-free_GM479516143.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/free-tiktok-coins_GM835599320.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/robux-com-free-robux_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/roblox-jailbreak-hack_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/adopt-me-roblox-hacks_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/coin-master-free-spins-2021_GM406889139.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-hack-roblox-games_GM431946152.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/how-to-get-free-coins-on-tiktok_GM835599320.pdf
- https://neuraltherapie-heidelberg.de/wp-content/uploads/fsqm-files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004acb.bin` `0f9a91527caf21eb8833f03a16e7fbe5e5152c922f125ed9d8ac650366a507d4`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4ACB	25344 bytes
`font_01_sfnt_off000084b7.bin` `02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84B7	2912 bytes
`font_02_sfnt_off00008eb4.bin` `35104518e66c8492531759eb706d86fdb36771bd3dd1e1625049e5bd6be6693d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EB4	18068 bytes

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