PDF malware analysis — malicious · 5ca5a514bd0f6d45

MALICIOUS

PDF

35.1 KB Created: 2021-06-27 03:57:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 299257246431025629672f150a2ac148 SHA-1: 55d8ecebfbf9edc165d415ae211190d40c0e959b SHA-256: 5ca5a514bd0f6d45b6b0986c3e07254bd8f7af364a8fcb149909d6c57a977d4d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document, masquerading as a "Robux Generator", contains a lure to execute commands via the clipboard. It also embeds external URLs that likely lead to malicious payloads. The ML classifier strongly indicates maliciousness, and the combination of the lure and embedded URLs suggests a downloader or exploit delivery mechanism.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/i-hacked-robux-game-hack PDF link annotation
- https://www.summerland.com.tw/upload/files/free-robux-obby_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-roblox-avatar-clothes_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/hacks-for-roblox-backpacking-beta_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/hack-de-roblox-robux_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/hack-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/star-code-roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/roblox-troll-outfits-free_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/roblox-moderators_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/dll-files-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.summerland.com.tw/upload/files/roblox-jailbreak-kupcake-hack_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003162.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3162	22840 bytes
SHA-256: `db18bad1969b72ec18329dedc670b56ce71239c494771c32a1fa03347608a8cf`
`font_01_sfnt_off00006485.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6485	18896 bytes
SHA-256: `2480662bba75d726bb9d6d4d76d94dedcb1f2e487e6979227c89ae3e708df224`

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