PDF malware analysis — malicious · 9c960f6539a6c01a

MALICIOUS

PDF

33.7 KB Created: 2021-06-25 12:14:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 640b5ece9d44ba46db9bb6971fe87fdd SHA-1: 7d3221da01983f30e5f0183d8a4945d7830c4b1d SHA-256: 9c960f6539a6c01ac3ff5aaf948c1affcc6249b77e1c28a94e3f3847cf6eb18b

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The document contains a lure related to Roblox cheats and hacks, directing users to download a file from a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports a malicious intent to deliver a payload. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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-jailbrek-fly-cheat-egine-game-hack
- https://kldcardio.ru/images/test-all-roblox-gear-hats-and-shirts-free_GM431946152.pdf
- https://kldcardio.ru/images/how-to-hack-games-on-roblox-2021_GM431946152.pdf
- https://kldcardio.ru/images/how-to-sell-a-free-shirt-roblox_GM431946152.pdf
- https://kldcardio.ru/images/how-to-get-your-hacked-account-back-in-roblox_GM431946152.pdf
- https://kldcardio.ru/images/how-to-get-free-robux-in-iphone_GM431946152.pdf
- https://kldcardio.ru/images/tiktok-free-book-hack_GM835599320.pdf
- https://kldcardio.ru/images/cheats-on-roblox-2021_GM431946152.pdf
- https://kldcardio.ru/images/can-people-hack-your-acount-on-roblox-if-you-talk_GM431946152.pdf
- https://kldcardio.ru/images/how-to-gift-robux-on-mobile_GM431946152.pdf
- https://kldcardio.ru/images/free-robux-hack-us_GM431946152.pdf
- https://kldcardio.ru/images/free-spins-on-coin-master_GM406889139.pdf
- https://kldcardio.ru/images/how-to-download-minecraft-for-free-on-pc_GM479516143.pdf
- https://kldcardio.ru/images/roblox-hack-com_GM431946152.pdf
- https://kldcardio.ru/images/get-free-robux-info_GM431946152.pdf
- https://kldcardio.ru/images/how-to-hack-roblox-with-cheat-engine-prison-life_GM431946152.pdf
- https://kldcardio.ru/images/what-is-the-money-cheat-for-roblox_GM431946152.pdf
- https://kldcardio.ru/images/how-to-make-a-free-cam-roblox_GM431946152.pdf
- https://kldcardio.ru/images/tiktok-free-jazz_GM835599320.pdf
- https://kldcardio.ru/images/free-roblox-adopt-me-bucks-cheat_GM431946152.pdf
- https://kldcardio.ru/images/roblox-piano-hack-comment-faire_GM431946152.pdf
- 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_off00002efc.bin` `2022662acdb4abdc9a41217018f1824d1e6cde750d1f90bcae934f8c9c7d75aa`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EFC	21256 bytes
`font_01_sfnt_off00005d51.bin` `b6dcf667e198dfb0fe2c7ba5165f181f86b68c5996eaa03fa69f01e70e3cbb04`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D51	19556 bytes

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