PDF malware analysis — malicious · 9cdf3add289088ea

MALICIOUS

PDF

32.7 KB Created: 2021-07-05 23:41:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 0808b1866310e7bdc91a62e1c3de4a93 SHA-1: b583c8dd69c5b08c8e533f4aa537a3155e0bc80b SHA-256: 9cdf3add289088ea0a9aa52e22e5dc9140e13ea88bd32fbab2c3c92cf3e44044

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs and references to 'Robux' and 'Coin Master hacks', strongly suggesting a lure for users to download malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The presence of external URIs and a URI pointing to a raw IP address indicates the sample is designed to redirect users to potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL

PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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/431946152/robux-game-hack
- http://36.94.36.7/elib//repository/coin-master-hack-2021-android_GM406889139.pdf
- http://36.94.36.7/elib/repository/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
- http://36.94.36.7/elib/repository/roblox-how-to-change-your-name-with-cheat-engine_GM431946152.pdf
- http://36.94.36.7/elib//repository/coin-master-tricks-and-hacks_GM406889139.pdf
- http://36.94.36.7/elib/repository/free-robux-no-gift-card_GM431946152.pdf
- http://36.94.36.7/elib/repository/best-free-spin-app-for-coin-master_GM406889139.pdf
- http://36.94.36.7/elib/repository/6-ways-to-get-millions-of-robux-unlimited-free-robux_GM431946152.pdf
- http://36.94.36.7/elib/repository/www-rbx-com_GM431946152.pdf
- http://36.94.36.7/elib//repository/rblx-city-free-robux_GM431946152.pdf
- http://36.94.36.7/elib//repository/freespins-coin-master_GM406889139.pdf
- http://36.94.36.7/elib/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdf
- http://36.94.36.7/elib/repository/get-more-robux_GM431946152.pdf
- http://36.94.36.7/elib/repository/instagram-coin-master-free-spins_GM406889139.pdf
- http://36.94.36.7/elib/repository/toolbox-apk_GM479516143.pdf
- http://36.94.36.7/elib//repository/coin-master-hack-coins_GM406889139.pdf
- http://36.94.36.7/elib/repository/minecraft-free-download-mac_GM479516143.pdf
- http://36.94.36.7/elib/repository/microsoft-bing-free-robux_GM431946152.pdf
- http://36.94.36.7/elib/repository/games-that-give-you-free-robux_GM431946152.pdf
- http://36.94.36.7/elib/repository/coin-master-hack-apk-33-download_GM406889139.pdf
- http://36.94.36.7/elib/repository/coin-master-free-cards-and-spin-link_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_off00002cbc.bin` `14b9c0aca99e9291d8ee3dd83361db92c827c23d4db138b424413e6bc79196d8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2CBC	21472 bytes
`font_01_sfnt_off00005c1e.bin` `da1723751bedafcb1f5ccdcef895f5533c90f7cf63bf49ed0807a84e3f782e55`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C1E	18552 bytes

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