PDF malware analysis — malicious · 2f5d50d3c8194dcf

MALICIOUS

PDF

46.1 KB Created: 2021-06-03 11:47:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: fff4be4b09a256e4229668a1cce88fdf SHA-1: 9bbd9808ae49dd4f6d12bf589877cb486c88b38d SHA-256: 2f5d50d3c8194dcf0b710498ef66f6004387e0387c939e769a3940349ecd1abd

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.001 PowerShell

The document presents a lure for free Robux and contains an embedded URL pointing to a potential download. The heuristic 'SE_CLIPBOARD_COMMAND_LURE' indicates the document instructs the user to paste content into a command-line interface, likely to execute a downloaded payload. This suggests the PDF acts as a downloader for further malicious activity.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.online/app/431946152/free-robux-codes-no-human-verification-game-hack
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/is-minecraft-java-edition-free_GM479516143.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-online-android_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-tiradas-gratis_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/is-there-a-way-to-get-free-robux_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-roblox-accounts-with-robux-2021_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-youthnow_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-daily-2021_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-iphone_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-free-exploits_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-apk-iphone_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/how-to-get-free-clothes-on-roblox_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-robux-glitch-2021_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/pubg-uc-website_GM1330123889.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-roblox-avatar_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/coin-master-hack-tool-access-online-generator_GM406889139.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/free-robux-no-scam_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-verification_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/minecraft-education-free_GM479516143.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/gain-robux_GM431946152.pdf
- https://www.polresbadung.id/new/public/ckfinder/userfiles/files/roblox-free-games-guest_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005100.bin` `4191f154a265931f98acef36111827116100f05e3352571d290bce405b2973c8`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5100	27888 bytes
`font_01_sfnt_off00008f9c.bin` `7535c842b13f5ab09a8d1f6df205e44a1f60a7fdf3d88b4466f5e7b4ed5bfe6e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F9C	19032 bytes

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