PDF malware analysis — malicious · 8cbec8e84ee9f044

MALICIOUS

PDF

47.8 KB Created: 2021-06-03 09:56:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5cbf985989758d817dad220117445a4f SHA-1: 69e7028b187279d80b3aaf54007f791d9c47e4d8 SHA-256: 8cbec8e84ee9f0442908498842fe06b760d18ddda3257d648dcc701e1861eee5

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document contains embedded URLs and a visual call-to-action, strongly suggesting a lure to download a malicious payload. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document may be instructing the user to decrypt or handle a password-protected archive, a common tactic to bypass security filters. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

Heuristics 4

Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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-roblox-clothes-girl-game-hack
- http://elibrary.perludem.org/repository/coin-master-free-spins-no-verification_GM406889139.pdf
- http://elibrary.perludem.org/repository/free-robux-just-enter-username-and-password_GM431946152.pdf
- http://elibrary.perludem.org/repository/mcpe-hacks_GM479516143.pdf
- http://elibrary.perludem.org/repository/poke-coins-pokemon-go-free_GM1094591345.pdf
- http://elibrary.perludem.org//repository/coin-master-hack-tool-access-online-generator_GM406889139.pdf
- http://www.elibrary.perludem.org/repository/coin-master-free-spins_GM406889139.pdf
- http://www.elibrary.perludem.org/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- http://elibrary.perludem.org/repository/mcpe_GM479516143.pdf
- http://elibrary.perludem.org/repository/coin-master-free-link-today_GM406889139.pdf
- http://elibrary.perludem.org//repository/coin-master-spin-rewards_GM406889139.pdf
- http://elibrary.perludem.org//repository/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdf
- http://elibrary.perludem.org//repository/can-you-actually-get-free-robux_GM431946152.pdf
- http://elibrary.perludem.org/repository/free-tiktok-views-no-verification_GM835599320.pdf
- http://elibrary.perludem.org//repository/free-spins-coin-master-blogspot_GM406889139.pdf
- http://www.elibrary.perludem.org/repository/free-roblox-shirt-templates-2021_GM431946152.pdf
- http://elibrary.perludem.org/repository/codes-to-get-free-robux_GM431946152.pdf
- http://elibrary.perludem.org/repository/coin-master-hack-without-verification-2021_GM406889139.pdf
- http://www.elibrary.perludem.org/repository/minecraft-hacks-ps4_GM479516143.pdf
- http://www.elibrary.perludem.org/repository/roblox-top_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/hack-coin-master-apk-download_GM406889139.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_off00005177.bin` `3605baa902d9f3f12e25c571018f5fdb7de13c336eecdb2b3f9e33a068ad0e7a`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5177	30896 bytes
`font_01_sfnt_off00009876.bin` `d29ec2e71bb068e77f351b4d123c990b41e31d257b9d9cf8b177703eed95a4a4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9876	18340 bytes

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