PDF malware analysis — malicious · 9327481c9d892188

MALICIOUS

PDF

44.4 KB Created: 2021-06-11 07:43:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0772a9dbcd2eb18266141a15c52d7148 SHA-1: 7af476d0d725438ab6737aab3d6360917a03732b SHA-256: 9327481c9d892188cbcdd8d7ec311e09ad96712d05103d750b8f5ae2aee8a3e2

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which point to websites offering 'free Robux' or 'free spins' for games like Roblox and Coin Master. This suggests a social engineering lure to drive traffic to potentially malicious sites. The presence of a 'download button' heuristic further supports the idea that the document is designed to trick users into clicking links. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/get-free-robux-items-roblox-game-hack
- https://www.kabadixpress.com/uploaded_files/userfiles/files/unlimited-free-spins-coin-master_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/free-minecraft-java-edition-account_GM479516143.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-stuff_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/daily-spin-coin-master-free_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-spins-links-2021_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/free-tiktok-accounts-and-passwords_GM835599320.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-offline-hack_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/free-appsfor-coin-master-daily-rewards_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-generator-free_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/mcpe-hack-client_GM479516143.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-new_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey_GM431946152.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-hack-coin-master-in-pc_GM406889139.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/how-to-use-brutus-to-hack-roblox_GM431946152.pdf
- https://www.kabadixpress.com/uploaded_files/userfiles/files/pokemon-go-free-battle-pass_GM1094591345.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_off00005222.bin` `3fc528bcd2181d655153a822c64762da5b368d218b7a2ad2abd65dfc387ad187`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5222	24604 bytes
`font_01_sfnt_off00008a63.bin` `98d05b819d90e55be12562ba45aad197571573ff1010404ef29e978389985188`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A63	18452 bytes

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