PDF malware analysis — malicious · 7114ed16daf5118e

MALICIOUS

PDF

49.1 KB Created: 2021-06-08 12:39:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 007d98a4969b3e87b75ea4a831dc5aba SHA-1: 1c1ae30e74e6ba2dca0e4aaaa43da5eb9084b776 SHA-256: 7114ed16daf5118e230c7b4760e1bfa12d9177d8ac4ec063719be2bd3475826f

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of external links, many pointing to files on decorsofacile.com, suggesting a link farm designed to distribute malicious content or lead to phishing sites. The document body and extracted URLs indicate lures for game cheats and hacks, such as 'Roblox Generator Hack' and 'Coin Master free spins'. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/roblox-generator-hack-ml-2021-game-hack
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-spin-coin-master-link-2021_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/moonactive-coin-master-free-spins-link_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/how-to-hack-a-minecraft-server_GM479516143.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-hack-2021_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/wahoo-gaming-co-free-robux_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-spins-coin-master-october-17-2021_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-hack-app-android-download_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/tiktok-free-stuff_GM835599320.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/roblox-pink-free-robux_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-roblox-wings_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/master-coin-master-free-spin_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/hack-minecraft_GM479516143.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/easy-way-to-get-free-robux_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/free-minecraft-skins-ps4_GM479516143.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/200-free-spins-coin-master_GM406889139.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/easy-robux-hack_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdf
- https://www.decorsofacile.com/uploaded_files/userfiles/files/coin-master-website_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005378.bin` `ea9734952a3331f2f6dcd007f118535634bfa89df9b9f0c6076feb6949b3a7ee`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5378	27084 bytes
`font_01_sfnt_off00009135.bin` `10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9135	2880 bytes
`font_02_sfnt_off00009b1f.bin` `1ddab4fbfd9070f12d166a5d2a16de6e730fa82cd61555c494d6b508736b2336`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B1F	18884 bytes

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