PDF malware analysis — malicious · 37f8f2e7d844bb23

MALICIOUS

PDF

38.6 KB Created: 2021-06-20 00:12:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: ac742b3a1e4ed90bb579db110331b2e3 SHA-1: fe1c43839acd2d06be5f233ce2b9e54432bf6f75 SHA-256: 37f8f2e7d844bb237eb7300a0b32b8b93dd3886cb4be9b702e005608b5aea1ac

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, strongly suggesting it is a lure to download a malicious payload. The ML classifier also flagged this PDF as malicious with high confidence. The document body and embedded URLs indicate a theme of game cheats and hacks, a common social engineering tactic.

Machine Learning

Nyx PDF Classifier malicious score 0.9985

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 http://netcdn.co/app/431946152/roblox-my-hero-bizzare-adventure-cheat-game-hack
- http://elibrary.perludem.org//repository/free-minecraft-maps_GM479516143.pdf
- http://www.elibrary.perludem.org/repository/roblox-name-that-famous-character-cheats_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/real-free-robux-generator-no-human-verification_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/roblox-c9m_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/easy-ways-to-get-free-robux_GM431946152.pdf
- http://elibrary.perludem.org//repository/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/cheat-codes-for-coin-master_GM406889139.pdf
- http://elibrary.perludem.org/repository/get-me-robux_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/microsoft-roblox_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/roblox-hack-deutsch-pc_GM431946152.pdf
- http://elibrary.perludem.org/repository/free-robux-in-roblox-rocash-com_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/hack-robar-cuentas-de-roblox-2021-pastebin-akaka_GM431946152.pdf
- http://elibrary.perludem.org/repository/cheap-roblox-hacks_GM431946152.pdf
- http://elibrary.perludem.org//repository/daily-free-spins-coin-master-2021_GM406889139.pdf
- http://elibrary.perludem.org/repository/free-robux-com-no-verification_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/how-to-hack-your-password-on-roblox_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/robux-prices_GM431946152.pdf
- http://elibrary.perludem.org/repository/coin-master-free-spins-2021-no-human-verification_GM406889139.pdf
- http://www.elibrary.perludem.org/repository/downlos-roblox-free_GM431946152.pdf
- http://www.elibrary.perludem.org/repository/roblox-hack-client_GM431946152.pdf
- https://www.roblox.com/.I
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003c52.bin` `e7911bd2f04beddc66304ea4e01b55f0073f1844f41623e14685b6879855d018`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3C52	22952 bytes
`font_01_sfnt_off00006fce.bin` `54cde6bf67ae2bfffb4dd3f1168f2e8fb94d034e4633b9c74c9559c0f14c4029`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6FCE	19764 bytes

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