PDF malware analysis — malicious · 3f17c9aa9aeabe95

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 15:35:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c5426df60b44c25255b1d5f3533e9416 SHA-1: 777b71021d3add7c6cfe23a5b22fb0b64fb898e6 SHA-256: 3f17c9aa9aeabe952adfeb144e749a1cb950704ec47897cedf3ffcfb79555384

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links to external websites, many of which are designed to appear as download pages for game hacks and cheats. The presence of a "download button" heuristic and the ML classifier's high confidence score indicate a malicious intent to trick users into downloading potentially harmful files. The document body and extracted URLs strongly suggest a lure for free in-game items or currency, a common social engineering tactic.

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/how-to-get-free-robux-items-on-roblox-game-hack
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-roblox-promo-codes_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/how-to-hack-pet-simulator-in-roblox_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/app-store-coin-master-free-spins_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-minecraft-texture-packs_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/minecraft-diamond-finder-hack_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-game-hacking-tricks_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-free-cards-link-2021_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-spin-coin-master-hack-2021_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/free-roblox-accounts-2021-with-robux_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-free-spin-today_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/coin-master-hack-pc-cheat-engine_GM406889139.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/minecraft-that-you-can-play-for-free_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/adopt-me-roblox-hacks_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/minecraft-for-free-apk_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-lawsuit_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-assassin_GM431946152.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/is-minecraft-free-on-ps4_GM479516143.pdf
- https://www.modestuae.com/uploaded_files/userfiles/files/roblox-outrageous-builders-club-for-free_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_off00003074.bin` `f6dba9a49af3b4e107db26e3b93c82db8b3af07b9862b6135703438d0477c0cd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3074	22792 bytes
`font_01_sfnt_off00006368.bin` `56642c8b16fb517b37269d21e2cd97ffdd53094a72ffb12f917f0cd34ba82af5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6368	19320 bytes

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