PDF malware analysis — malicious · fa3903395bfbea42

MALICIOUS

PDF

35.9 KB Created: 2021-07-07 17:02:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: b57ee71884de83720d126acdca1d5f8f SHA-1: c07301914f5bae78373275fb50137cb79f39c42f SHA-256: fa3903395bfbea427f047b7aa3288ffabc4ae2f3dcc21b74bcff05179473e33b

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, identified as a link farm, directing users to websites offering game hacks and cheats. The primary URL http://netcdn.tw/app/406889139/daily-free-spins-coin-master-2021-game-hack is particularly suspicious. The presence of a "download button" heuristic further supports the malicious intent of luring users to download content.

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/daily-free-spins-coin-master-2021-game-hack
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-ios_GM479516143.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-download-for-pc_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-bee-simulator-hack-download_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-roblox-roubux-generator_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-with-no-verification_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-roblox-credit-for-free_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-roblox-cards-codes-2021_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-redeem-card-codes-free_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/roblox-20219-robux-free_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-hack-apk-online_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-link-today-instagram_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/dailyrobux_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/minecraft-fly-hack_GM479516143.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/free-mod-apk-coin-master_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/hack-coins-pizzeria-roleplay-remastered-roblox-v3rmillion_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/como-distruir-juegos-en-roblox-hack_GM431946152.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-spins-16-04-19_GM406889139.pdf
- https://www.solararabialtd.com/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-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
`stream_002_off0000333f.bin` `400d984cf7307ff91f164a160635f65eabe63df36dca0f9d8b471143860c4f14`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x333F	23140 bytes
`font_01_sfnt_off00006772.bin` `933a9abb3ea4f8fbe1c77bcd3d2591622a827aeefe2bea77f70e7028cf79008c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6772	19000 bytes

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