PDF malware analysis — malicious · d9064ce957198faa

MALICIOUS

PDF

35.8 KB Created: 2021-06-26 23:32:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 66ecc1c67a29b424bf8c0c445a54dcb7 SHA-1: 418ba2505fdccdc5a238459c65fd61d595b128fd SHA-256: d9064ce957198faa85e54f1026e5a82b5dffa26b0c30b8d5fd23b9812e510968

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as SEO link farms and offer game hacks and cheats for popular games like Roblox and Coin Master. The ML classifier strongly indicated maliciousness, and the presence of external links suggests a potential for downloading further malicious content or redirecting users to phishing sites. No scripts were extracted, but the overall structure and content point towards a social engineering lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-asset-download-for-shirt-template-free-game-hack
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-online-hack-download_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/does-cheat-engine-still-work-on-roblox_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/hacked-roblox-game_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-spins-coin-master-links-blogger_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-hack-game_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-ios-app-hack_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-free-no-login-or-password_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-spin-app-for-coin-master_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-fly-cheat-engine-2021_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-robux-working_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free-spin-link-today-2021_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-roblox-gift-card-codes_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/spins-gratis-coin-master-hoy_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/minecraft-free-unblocked_GM479516143.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/roblox-robux-generator-no-human-verification_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/free-robux-roblox-com-mobile4free24_GM431946152.pdf
- https://www.mahabircreation.com/uploaded_files/userfiles/files/blue-scythe-roblox-hack_GM431946152.pdf
- https://www.roblox.com/my/tasks
- 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_off000031c1.bin` `b79e571d6bc27e46c3b3ead3c120b9fe4e8d20e3298a444f812d0a8dae241d60`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31C1	22644 bytes
`font_01_sfnt_off0000642e.bin` `9d39f0c38296ee75628295071ff9f46650ecd2ecb6a3b1c215d44bb353aad8de`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x642E	19984 bytes

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