PDF malware analysis — malicious · 4cdb052e8405ad9a

MALICIOUS

PDF

41.6 KB Created: 2021-05-17 07:01:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 704eece3a93e28a87e45f6ba588926c8 SHA-1: 5814ab92dba25db2acf49af53b1340a22cf309ef SHA-256: 4cdb052e8405ad9a69c1d2191e27117babcd843fd4e3943c73f86dec6b3e5350

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document exhibits characteristics of a malicious link farm, heavily promoting various game-related cheats and hacks. The presence of numerous external links, including a primary URL pointing to a "roblox-hack-me-game-hack" resource, strongly suggests an attempt to redirect users to potentially harmful content or downloads. The ML classifier's high confidence score further supports the malicious nature of this document.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/431946152/roblox-hack-me-game-hack
- https://www.banhngoncaocap.com/images/rbx-place-free-robux_GM431946152.pdf
- https://www.banhngoncaocap.com/images/free-links-for-free-coins-and-spins-for-coin-master_GM406889139.pdf
- https://www.banhngoncaocap.com/images/coin-master-how-to-get-free-pet-food_GM406889139.pdf
- https://www.banhngoncaocap.com/images/free-robux-generator-no-human-verification-2021_GM431946152.pdf
- https://www.banhngoncaocap.com/images/minecraft-tower-defense-hacked_GM479516143.pdf
- https://www.banhngoncaocap.com/images/coin-master-free-spins-hack-link_GM406889139.pdf
- https://www.banhngoncaocap.com/images/coin-master-free-coins-and-spins-blogspot_GM406889139.pdf
- https://www.banhngoncaocap.com/images/robux-free-gift-card_GM431946152.pdf
- https://www.banhngoncaocap.com/images/robux-free-2021_GM431946152.pdf
- https://www.banhngoncaocap.com/images/how-to-change-roblox-username-for-free_GM431946152.pdf
- https://www.banhngoncaocap.com/images/free-spin-card-exchange-coin-master_GM406889139.pdf
- https://www.banhngoncaocap.com/images/how-to-get-free-robux-gift-cards_GM431946152.pdf
- https://www.banhngoncaocap.com/images/coin-master-free-spins-app_GM406889139.pdf
- https://www.banhngoncaocap.com/images/free-robux-generator-no-survey_GM431946152.pdf
- https://www.banhngoncaocap.com/images/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdf
- https://www.banhngoncaocap.com/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdf
- https://www.banhngoncaocap.com/images/coin-master-free-spins-iphone_GM406889139.pdf
- https://www.banhngoncaocap.com/images/free-roblox-hack_GM431946152.pdf
- https://www.banhngoncaocap.com/images/coin-master-website_GM406889139.pdf
- https://www.banhngoncaocap.com/images/coin-master-villages_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_003_off00004731.bin` `4483bbf4960e3fe94723c2f1cf2be685239f8a583b8571b9dd30657b783b136e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4731	24588 bytes
`font_01_sfnt_off00007fd6.bin` `aef395c884b1121fa113f915db4056a7b0027cd471dc4d96a5cdd03c50f60cf3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7FD6	18376 bytes

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