PDF malware analysis — malicious · 923900eab2e82c44

MALICIOUS

PDF

44.6 KB Created: 2021-06-03 05:53:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0b5b25c21ecb2b5c0fe3c9d8b376bd9a SHA-1: d034d79058da587eaa34d480e3a2b30a3fbed453 SHA-256: 923900eab2e82c440ead1b5cf9884cbc28349ef101f0d78ce35edf19b5689a1c

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which are part of a link farm designed to appear as legitimate resources for "free Robux" and "game hacks." The primary external URI, https://netcdn.online/app/431946152/free-robux-plugin-game-hack, likely serves as a download point for a malicious payload. The ML classifier strongly indicated maliciousness, supporting the interpretation of these links as a lure for malicious downloads.

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.online/app/431946152/free-robux-plugin-game-hack
- https://lib.stie-yai.ac.id/repository/free-robux-generator-no-verification_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-hack-generator_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/how-to-hack-on-roblox-2021_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/easy-way-to-get-free-robux_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/get-free-robux-info_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/give-me-robux-now_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/coin-master-heaven-daily-free-spins-link-today_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/5-easy-ways-to-get-free-robux_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/how-to-free-robux_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/get-coin-master-spins-free_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/websites-to-get-free-robux_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/free-spins-for-coin-master_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-gift-card_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/coin-spin-link_GM406889139.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-hack-no-verification_GM431946152.pdf
- https://lib.stie-yai.ac.id/repository/free-robux-generator-no-verification-2021_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_off000050b1.bin` `9c3108b4722704f6f3cae255de2165210f1f94a56d5216019a8509a6420128eb`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50B1	25572 bytes
`font_01_sfnt_off00008a91.bin` `b1e618f3c827caddc6362d045921dbea8262bc3c5cce97b2a1932cab79d5aa7b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A91	18648 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.