PDF malware analysis — malicious · f052a3d264d59d12

MALICIOUS

PDF

43.4 KB Created: 2021-05-15 13:32:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 759eef4dd04a712a83ff0051e415a435 SHA-1: 746f58c536058413d0952251ccbd459c7ed8154d SHA-256: f052a3d264d59d12ef659683bc509b9f1733ba8105c3f3c6d730ea6fede4beca

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document presents a fake CAPTCHA or human verification prompt to trick the user into interacting with a malicious link. The embedded URL and numerous other similar URLs found in the document body suggest a lure for potentially unwanted applications or malware, possibly related to game hacks or in-game currency. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 4

Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA

Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
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.xyz/app/431946152/get-free-robux-today-game-hack
- https://arcasict.nl/images/coin-master-hack-tool-generator_GM406889139.pdf
- https://arcasict.nl/images/coin-master-free-cards-link_GM406889139.pdf
- https://arcasict.nl/images/robux-app_GM431946152.pdf
- https://arcasict.nl/images/coin-master-hack-game-download-ios_GM406889139.pdf
- https://arcasict.nl/images/coin-master-free-spins-whatsapp-link_GM406889139.pdf
- https://arcasict.nl/images/free-minecraft-maps_GM479516143.pdf
- https://arcasict.nl/images/minecraft-survival-free_GM479516143.pdf
- https://arcasict.nl/images/hack-coin-pro-coin-master_GM406889139.pdf
- https://arcasict.nl/images/how-to-get-free-spins-on-coin-master_GM406889139.pdf
- https://arcasict.nl/images/coin-master-connection-lost_GM406889139.pdf
- https://arcasict.nl/images/hack-coin-master-for-android_GM406889139.pdf
- https://arcasict.nl/images/coin-master-gold-cards-free_GM406889139.pdf
- https://arcasict.nl/images/free-robux-hack_GM431946152.pdf
- https://arcasict.nl/images/aristois-minecraft-hack_GM479516143.pdf
- https://arcasict.nl/images/coin-master-free-food-for-pet_GM406889139.pdf
- https://arcasict.nl/images/get-free-robux-without-human-verification_GM431946152.pdf
- https://arcasict.nl/images/how-to-get-free-robux-without-any-verification_GM431946152.pdf
- https://arcasict.nl/images/roblox-promo-codes-2021-robux_GM431946152.pdf
- https://arcasict.nl/images/toolbox-for-minecraft-pe_GM479516143.pdf
- https://arcasict.nl/images/free-robux-com-roblox_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_003_off00004375.bin` `927ec3a869e97b6008f39bbf36f8dc3f6a4853b011315a68bead810d4cf4e23d`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4375	29112 bytes
`font_01_sfnt_off000085cb.bin` `b843f73b4bd8c826713a813afccd99a06030f2bdc38aa1865c4ca07f2f1b4e6b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85CB	18700 bytes

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