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efinstaller.exe

Express Files Installer

http://www.express-files.com/

The application efinstaller.exe has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. This is a setup and installation application, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from static.updatestar.net.
Publisher:
http://www.express-files.com/

Product:
Express Files Installer

Version:
2,0,0,0

MD5:
3671311f16500e775355a58a8b75ad73

SHA-1:
654c682f26c57c031ea1b3c5698955c3d5b667bc

SHA-256:
339f125916e3bba169f23c1ec82a1fb987ad7695e101f54789e27945344f2494

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
4/27/2024 4:13:15 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Win32.Generic
16.6.13.0

File size:
4.2 MB (4,390,520 bytes)

Product version:
2,0,0,0

Copyright:
Copyright http://www.express-files.com/ (C) 2012

Original file name:
ExpressFilesInstaller.exe

File type:
Executable application (Win32 EXE)

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

File PE Metadata
Compilation timestamp:
3/27/2012 8:36:13 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
98304:b6nv37qiCcUSrhmOJFjTfHqQUReYNa17Iy7nDsP//:oIhSNmOjXfTU3Na18ycPH

Entry address:
0x9857

Entry point:
10, F1, 30, F0, 8A, E5, F2, 8B, FA, 24, 6E, 0F, AF, FD, 84, DC, F7, C3, 17, 54, 4B, DD, 3B, DA, 88, D9, C6, C1, 39, FE, CB, 68, C5, 3D, 7E, 00, B0, 5A, F7, C3, 94, 25, AC, 54, 84, FE, 8A, E6, 2B, FD, 68, D3, 4C, FA, 00, EB, 06, 89, F9, C6, C2, 24, 4F, E8, 2A, 00, 00, 00, F6, C3, 87, FE, CE, 69, E9, AD, 46, 57, 75, 81, FE, 1F, CB, 00, 00, 72, 06, C6, C5, E9, 0F, BF, F9, 03, C1, 85, C9, 73, 0B, 88, ED, 8D, 0D, B5, 97, 33, B7, F6, C4, 42, 5F, 81, CE, B8, 0B, 77, 26, F3, F2, 0F, AF, DA, 30, FB, B6, 7D, 81, C7...
 
[+]

Entropy:
7.8949  (probably packed)

Code size:
90 KB (92,160 bytes)

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

http://static.updatestar.net/dl/.../EFinstaller.exe

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