PDF malware analysis — malicious · 96c85f69a969de64

MALICIOUS

PDF

42.3 KB Created: 2021-05-13 16:18:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 4d48d22ccd79d06e740a203224a07aa4 SHA-1: 2fb4cec3b94918508a85fb330b37ba2ac0d9926f SHA-256: 96c85f69a969de643d7db75c85128cefb46c0648f4560c53f54f4ac3f742bc22

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, including one pointing to a potential game hack download. The presence of a 'password-protected archive lure' heuristic suggests the document is designed to trick users into downloading an encrypted payload, which is then likely decrypted using provided password instructions. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution scheme.

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/minecraft-bedrock-edition-free-game-hack
- https://ceiprevellodetoro.org/images/free-robux-easy_GM431946152.pdf
- https://ceiprevellodetoro.org/images/best-way-to-get-free-robux_GM431946152.pdf
- https://ceiprevellodetoro.org/images/free-spin-link-in-coin-master_GM406889139.pdf
- https://ceiprevellodetoro.org/images/free-robux-no-verification-needed_GM431946152.pdf
- https://ceiprevellodetoro.org/images/moon-active_GM406889139.pdf
- https://ceiprevellodetoro.org/images/minecraft-creative-mode-free_GM479516143.pdf
- https://ceiprevellodetoro.org/images/coin-master-hack-app_GM406889139.pdf
- https://ceiprevellodetoro.org/images/coin-master-free-spin-link-twitter_GM406889139.pdf
- https://ceiprevellodetoro.org/images/roblox-games-that-give-you-free-robux_GM431946152.pdf
- https://ceiprevellodetoro.org/images/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdf
- https://ceiprevellodetoro.org/images/free-minecraft-realm-codes_GM479516143.pdf
- https://ceiprevellodetoro.org/images/how-to-get-free-robux-not-a-scam_GM431946152.pdf
- https://ceiprevellodetoro.org/images/get-free-food-in-coin-master_GM406889139.pdf
- https://ceiprevellodetoro.org/images/coin-master-spin-hack-without-verification_GM406889139.pdf
- https://ceiprevellodetoro.org/images/8bp-hack-coin-master_GM406889139.pdf
- https://ceiprevellodetoro.org/images/apps-to-get-free-robux_GM431946152.pdf
- https://ceiprevellodetoro.org/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
- https://ceiprevellodetoro.org/images/robux-com-free-robux_GM431946152.pdf
- https://ceiprevellodetoro.org/images/can-i-play-minecraft-for-free_GM479516143.pdf
- https://ceiprevellodetoro.org/images/robux-hack-no-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
`stream_003_off00004a31.bin` `4706121fcc90673d555a3a2a9abd20b3408e302137a56ba39b9d19507b234e28`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A31	25180 bytes
`font_01_sfnt_off0000831e.bin` `0b29718dce26c4d1fb8eff562362f22d55d4276ac23c5c88aa1b07f7376859fd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x831E	18268 bytes

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