PDF malware analysis — malicious · f5771673a8f768b6

MALICIOUS

PDF

45.0 KB Created: 2021-05-14 22:01:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 93b2659fa620aaa646eb0ea079abddde SHA-1: aef622351c5dc6a3b34ef3890c5d0a929eabaca1 SHA-256: f5771673a8f768b66f13ce534584277f5d59fddd943e1defabdd825296550ab3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document uses a lure related to game downloads to trick users into executing malicious content. It contains a heuristic firing for a clipboard command execution lure, indicating the user is instructed to paste commands into a shell. The embedded URLs likely lead to further malicious downloads or phishing pages.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

Heuristics 4

Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE

Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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-free-download-mobile-game-hack
- https://beauty911.tw/upload/files/free-robux-easy_GM431946152.pdf
- https://beauty911.tw/upload/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
- https://beauty911.tw/upload/files/minecraft-windows-10-free-with-java_GM479516143.pdf
- https://beauty911.tw/upload/files/collect-free-spin-linms-coin-master_GM406889139.pdf
- https://beauty911.tw/upload/files/coin-master-spin-rewards_GM406889139.pdf
- https://beauty911.tw/upload/files/how-to-get-roblox-premium-for-free_GM431946152.pdf
- https://beauty911.tw/upload/files/coin-master-shield-hack_GM406889139.pdf
- https://beauty911.tw/upload/files/coin-master-free-400-spin-link_GM406889139.pdf
- https://beauty911.tw/upload/files/free-spins-from-coin-master_GM406889139.pdf
- https://beauty911.tw/upload/files/free-spins-and-coins-for-coin-master_GM406889139.pdf
- https://beauty911.tw/upload/files/coin-master-official-fan-page_GM406889139.pdf
- https://beauty911.tw/upload/files/earn-robux-by-watching-ads_GM431946152.pdf
- https://beauty911.tw/upload/files/hacks-and-cheats-for-coin-master_GM406889139.pdf
- https://beauty911.tw/upload/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
- https://beauty911.tw/upload/files/coin-master-free-rewards-link_GM406889139.pdf
- https://beauty911.tw/upload/files/coin-master-hack-2021_GM406889139.pdf
- https://beauty911.tw/upload/files/free-coin-master-coins-and-spins_GM406889139.pdf
- https://beauty911.tw/upload/files/robux-hacks-2021_GM431946152.pdf
- https://beauty911.tw/upload/files/coin-master-hack-no-root_GM406889139.pdf
- https://beauty911.tw/upload/files/wurst-hacked-client-112-2_GM479516143.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_off00004919.bin` `2eb86e4ce7f675c8c9df0b003c57f9c391c47f5053ff6cc315051bf9aad8bc63`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4919	25260 bytes
`font_01_sfnt_off00008275.bin` `20bac19337dce9163d8a15d5ea242b817ed625ad4c1d3890eb6ba5e65674d2de`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8275	2952 bytes
`font_02_sfnt_off00008cae.bin` `1515dea36b54f390db2656cd1e78578212b0857dcc74367194bf1f7b23864c35`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CAE	18448 bytes

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