PDF malware analysis — malicious · 43851971005b51d8

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 09:43:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: fe799b24ce2c82d16bb3523accca1936 SHA-1: 6a2dcbdb16dccb1f8f99486bd3897e641e0fccee SHA-256: 43851971005b51d8a8fb9c662ca1a142d1307bed003e0d5b512a5c492b3d56dd

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, forming a link farm, that direct users to websites offering game hacks and cheats. The primary URL, http://netcdn.tw/app/406889139/coin-master-2021-free-spins-link-blogspot-game-hack, is associated with a Coin Master hack. This suggests the document is designed to lure users into potentially malicious sites, likely for phishing or malware distribution. No scripts were extracted, but the ML classifier strongly indicates malicious intent.

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/coin-master-2021-free-spins-link-blogspot-game-hack
- https://www.sonestad.se/library/repository/pubg-uc-300_GM1330123889.pdf
- https://www.sonestad.se/library/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdf
- https://www.sonestad.se/library/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdf
- https://www.sonestad.se/library/repository/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdf
- https://www.sonestad.se/library/repository/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdf
- https://www.sonestad.se/library/repository/master-coin-free_GM406889139.pdf
- https://www.sonestad.se/library/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdf
- https://www.sonestad.se/library/repository/coin-master-hack-online-no-human-verification_GM406889139.pdf
- https://www.sonestad.se/library/repository/how-to-get-free-robux-without-downloading-anything_GM431946152.pdf
- https://www.sonestad.se/library/repository/hack-robux_GM431946152.pdf
- https://www.sonestad.se/library/repository/coin-master-coins_GM406889139.pdf
- https://www.sonestad.se/library/repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdf
- https://www.sonestad.se/library/repository/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
- https://www.sonestad.se/library/repository/how-to-get-free-coins-on-flip-master_GM406889139.pdf
- https://www.sonestad.se/library/repository/minecraft-pe-hacks-2021_GM479516143.pdf
- https://www.sonestad.se/library/repository/roblox-cheat-codes_GM431946152.pdf
- https://www.sonestad.se/library/repository/free-robux-no-verification-no-survey_GM431946152.pdf
- https://www.sonestad.se/library/repository/roblox-hack-injector_GM431946152.pdf
- https://www.sonestad.se/library/repository/mcmaster-club-coin-master-hack_GM406889139.pdf
- https://www.sonestad.se/library/repository/can-i-play-minecraft-for-free_GM479516143.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_off0000305a.bin` `ffa82a67fbe72857b0bb51b5ceaa752747e084dae9fd5b3d492d984e9ad39689`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x305A	22944 bytes
`font_01_sfnt_off00006406.bin` `19b793172c3e4e67372f0948662efcb12590f1ebd1aedebdca9f554a15f0a298`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6406	19036 bytes

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