PDF malware analysis — malicious · eb287574cca24b53

MALICIOUS

PDF

43.0 KB Created: 2021-05-14 19:36:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 079ea251be8749266b605f037d10b1b5 SHA-1: 4e31b9be44442f0f384b1714c787665be18a80d0 SHA-256: eb287574cca24b53f3360401dbc1466fbd91e97525b70a4be0f68bc8fae51cc7

122 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File T1059.003 Command and Scripting Interpreter: Windows Command Shell

The PDF document employs social engineering tactics, specifically a 'ClickFix' lure, to trick users into executing commands. It presents a fake game generator and directs users to download a file, then use the Windows Run dialog or command prompt to execute it. The embedded URL and numerous other URLs point to potentially malicious content, likely a second-stage payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 5

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
ClickFix social engineering attack high SE_CLICKFIX

Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
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/431946152/free-roblox-generator-game-hack
- https://www.bathshoponline.co.uk/uploads/files/files/free-spins-and-coins-on-coin-master_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/free-robux-groups-2021_GM431946152.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/coin-master-facebook_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/coin-master-spin-free_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/coin-master-free-spins-cheat_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/coin-master-coins-free_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/give-me-robux_GM431946152.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/free-coin-master-spins-and-coins-for-daily_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/free-minecraft-severs_GM479516143.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/free-minecraft-survival-server_GM479516143.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/coin-master-apk-free-download_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/client-minecraft_GM479516143.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/free-robux-no-verification-needed_GM431946152.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-free-robux-2021_GM431946152.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/www-claim-gg-to-earn-free-robux_GM431946152.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/how-to-get-more-spins-on-coin-master_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/coin-master-free-spins-daily_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/minecraft-pocket-edition-download-free-pe-calculator_GM479516143.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/free-cheat-codes-for-coin-master_GM406889139.pdf
- https://www.bathshoponline.co.uk/uploads/files/files/roblox-promo-codes-for-free-robux_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_003_off00004bfc.bin` `672416513317616d1b7ed07c697579583e1a1cf7a87420414af9dbd604df3380`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BFC	25788 bytes
`font_01_sfnt_off000085b2.bin` `a933d21998376b1e1789d4c480c6983ef3f135197d1bc74c37b8b8f8713ff5e6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85B2	18280 bytes

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