localfile.exe

X-MEDIA JSC

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application localfile.exe by X-MEDIA JSC has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the installCore installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from f1.tuviviet.net.
Publisher:
X-MEDIA JSC  (signed and verified)

MD5:
9a61ff747ef808eb23016f6e1a08f42b

SHA-1:
f33003d0c634a71a305740e001040a40f4de5177

SHA-256:
516d50427d0131def31ca5e0982bf459b1fb8a038d5dc7ff2b2abafcea1c7e4c

Scanner detections:
1 / 68

Status:
Adware

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.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/2/2024 9:31:44 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.XMEDIAJS (M)
16.4.18.10

File size:
785.2 KB (804,040 bytes)

Product version:
1.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\localfile.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
9/18/2014 7:00:00 AM

Valid to:
9/19/2015 6:59:59 AM

Subject:
CN=X-MEDIA JSC, O=X-MEDIA JSC, STREET="244A, Le Trong Tan, Khuong Mai, Thanh Xuan", L=Ha Noi, S=Ha noi, PostalCode=10111, C=VN

Issuer:
CN=COMODO RSA Code Signing CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00F2D9EB8AEBF269F7547A7B61BF10EA87

File PE Metadata
Compilation timestamp:
6/20/1992 5:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:hRA5SCjdk+BhDv1eeIaO/kPgLPD7f6jx3aaJ:hSsOF1eeI7xjDzwhVJ

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

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