PDF malware analysis — malicious · e63361cb43df7af8

MALICIOUS

PDF

34.8 KB Created: 2021-07-06 04:33:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 1a422759ae24350de903ed38f47a7ba5 SHA-1: bd7ba99df4c8c4a314156ff5cda0eba62e3e3b46 SHA-256: e63361cb43df7af8c7b418feadaa1d21f741d5b7a6198cfcd7b5fbcd8fb4aeaa

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, that lead to websites promising free in-game items and currency. The ML classifier strongly indicates maliciousness, and the presence of external URIs suggests the document is designed to redirect users to potentially malicious sites or phishing pages. No scripts were extracted, but the overall structure and content point to a social engineering lure.

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.tw/app/406889139/free-spins-and-coins-coin-master-2021-link-game-hack
- https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-hack-2021-no-human-verification_GM406889139.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-get-20210-robux-for-free_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-buy-stuff-on-roblox-for-free_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-actually-get-free-robux_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/free-robux-no-verification-or-survey_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/free-minecraft-severs_GM479516143.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/lazyblocks-com-free-robux_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/get-pokemon-go-free-coins_GM1094591345.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/roblox-codes-toys-free_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/hack-coin-master-free-spins_GM406889139.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/minecraft-server-free-trial_GM479516143.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-get-free-robux-not-a-scam_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/free-robux-com-no-verification_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-free-spin-today_GM406889139.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/roblox-execute-script-hack_GM431946152.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-server-hack_GM406889139.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/minecraft-bedrock-edition-hacks_GM479516143.pdf
- https://www.sses.com.sa/uploaded_files/userfiles/files/coin-master-free-spins-23-march-2021_GM406889139.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_off00003095.bin` `9a722b66b3243950459ec4a7e70d814b319dd75aac308c3a3fbd7dcf7ca6390f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3095	22716 bytes
`font_01_sfnt_off00006382.bin` `5da8567ac5cad1a9e8b19f4308895a295b9244689bea2bda45786747592bc9c5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6382	18920 bytes

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