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mu_downloader.exe

The executable mu_downloader.exe has been detected as malware by 1 anti-virus scanner. This is a setup program which is used to install the application. The file has been seen being downloaded from full-ggp.muonline.webzen.com.
MD5:
1891960ef61f6df2aebed139d03edccd

SHA-1:
6294e75f7f4c9206c6862f2abba1653f53df0add

SHA-256:
86a11ac1f791827e64a4ed1622078da3ea366faf0f0fcce94061c7561723af8c

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
4/24/2025 4:01:04 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Threat.Win.Reputation.IMP
16.5.3.9

File size:
5.4 MB (5,629,904 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\downloads\mu_downloader.exe

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:XodRX+hH8a3U6WqoszvK9r1Ad8vTWX7TkzhI83fByAb8C8uqZ8x58muTHGIwAGrp:XovaSF401eETOfkzBByUDAGN

Entry address:
0x80E4

Entry point:
55, 8B, EC, 83, C4, E0, 33, C0, 89, 45, E0, 89, 45, E8, 89, 45, E4, 89, 45, EC, B8, 54, 80, 40, 00, E8, 12, BE, FF, FF, 33, C0, 55, 68, 20, 82, 40, 00, 64, FF, 30, 64, 89, 20, B8, A8, 91, 40, 00, B9, 0B, 00, 00, 00, BA, 0B, 00, 00, 00, E8, 5C, EF, FF, FF, B8, B4, 91, 40, 00, B9, 09, 00, 00, 00, BA, 09, 00, 00, 00, E8, 48, EF, FF, FF, B8, C0, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, 34, EF, FF, FF, B8, DC, 91, 40, 00, B9, 03, 00, 00, 00, BA, 03, 00, 00, 00, E8, 20, EF, FF, FF, A1, 10, 92, 40...
 
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Developed / compiled with:
Microsoft Visual C++

Code size:
29 KB (29,696 bytes)

The file mu_downloader.exe has been seen being distributed by the following URL.

http://full-ggp.muonline.webzen.com/.../MU_Downloader.exe

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