PDF malware analysis — malicious · 6824a5062c3e949a

MALICIOUS

PDF

43.5 KB Created: 2021-06-03 05:49:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5a51ad1af4c6c511eb69d85867b17281 SHA-1: 472691e7acebee8c3c5a967e70ffcbfef3871a21 SHA-256: 6824a5062c3e949a8130534e07e3543e45fa1cee186afe3034d89ab3f641e079

62 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The ML classifier strongly indicates maliciousness, supported by the presence of external URIs and heuristics for QR code and download button lures. The document body, though heavily obfuscated, contains references to game-related lures ('Minecraft Multiplayer Free') and embedded URLs, suggesting a phishing or malware distribution attempt. The primary malicious URL identified is https://netcdn.online/app/479516143/minecraft-multiplayer-free-game-hack.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

Heuristics 4

QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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.online/app/479516143/minecraft-multiplayer-free-game-hack
- http://achauco.vn/public/upload/files/free-robux-without-doing-anything_GM431946152.pdf
- http://achauco.vn/public/upload/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdf
- http://achauco.vn/public/upload/files/roblox-free-hair-girl_GM431946152.pdf
- http://achauco.vn/public/upload/files/how-to-get-minecraft-for-free-2021_GM479516143.pdf
- http://achauco.vn/public/upload/files/free-coins-spins-on-coin-master_GM406889139.pdf
- http://achauco.vn/public/upload/files/get-free-spins-in-coin-master_GM406889139.pdf
- http://achauco.vn/public/upload/files/free-robux-hacks-no-verification_GM431946152.pdf
- http://achauco.vn/public/upload/files/how-to-actually-get-free-robux_GM431946152.pdf
- http://achauco.vn/public/upload/files/minecraft-windows-10-free_GM479516143.pdf
- http://achauco.vn/public/upload/files/roblox-free-robux-hack_GM431946152.pdf
- http://achauco.vn/public/upload/files/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdf
- http://achauco.vn/public/upload/files/free-robux-net_GM431946152.pdf
- http://achauco.vn/public/upload/files/tiktok-viewer-free_GM835599320.pdf
- http://achauco.vn/public/upload/files/coin-master-free-spins-daily_GM406889139.pdf
- http://achauco.vn/public/upload/files/free-coin-master-gifts_GM406889139.pdf
- http://achauco.vn/public/upload/files/gold-card-coin-master-free_GM406889139.pdf
- http://achauco.vn/public/upload/files/how-to-get-free-spins-in-coin-master_GM406889139.pdf
- http://achauco.vn/public/upload/files/roblox-free-robux-codes_GM431946152.pdf
- http://achauco.vn/public/upload/files/how-to-hack-mcpe-master-coins_GM406889139.pdf
- http://achauco.vn/public/upload/files/free-spins-coin-master-legit_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_004_off00005056.bin` `64ccbe5b66143ebbbd3e2114a7e63c816fb0fe877dbbaf409584698e37bf4aea`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5056	24440 bytes
`font_01_sfnt_off00008807.bin` `22c65de64af2721f6fc37241b86838ece151de043079d0e804f5da14bd34918b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8807	18136 bytes

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