PDF malware analysis — malicious · 55c41891e16a921c

MALICIOUS

PDF

41.8 KB Created: 2021-05-16 23:09:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 961f2693eeef86b92df3a2d7a454c5a7 SHA-1: 3eb93db40fe27ffabb702fc85ca0c18a5fa32fcb SHA-256: 55c41891e16a921c754155cc9b0820b868c77804846655810fcb2751d26cb29b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual lure suggesting a download, consistent with a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of external URIs and the 'password-protected archive' heuristic suggest the document is designed to trick the user into downloading a secondary payload, likely disguised as game-related content.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE

Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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.xyz/app/479516143/free-minecraft-printables-game-hack
- http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-no-downloading-apps_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-spin-hack_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/minecraft-hacker-mask_GM479516143.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/how-to-get-robux-easy_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/how-to-win-free-robux_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-hack-version-download-2021_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/links-for-coin-master-free-spins_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/easy-robux-hack_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-free-spins-for-today_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/how-to-hack-coin-master-in-pc_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-cheat-engine-hack_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/link-for-free-spins-on-coin-master_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/freecoins_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/minecraft-life-hacks_GM479516143.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/free-robux-that-actually-works-2021_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/free-promo-codes-for-robux_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/unlimited-robux-2021_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/coin-master-link-today_GM406889139.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/roblox-promo-codes-for-free-robux_GM431946152.pdf
- http://xn--80aeb7bbceeegc.xn--p1ai/images/robux-without-verification_GM431946152.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_off00004a82.bin` `84f3569de8b4e4267e873b400554c211367acce59ee618d25dfb7f851406299e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A82	24756 bytes
`font_01_sfnt_off00008230.bin` `e5df45a09fd76c24ea43a7fa28fc5fe559da15feee3d3577044ff876206ae01e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8230	17956 bytes

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