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skype.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 skype.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. The file has been seen being downloaded from cdm.tuviviet.net.
Publisher:
X-Media JSC  (signed and verified)

MD5:
992c443c6d70ca534d7a36cf6563145b

SHA-1:
062586428c2aab77e185fc7fc87fe4013f53b4f1

SHA-256:
641a09b290e9bda636f9201ba2e1368e9591e18143f1241164592bb8f9aab7a7

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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
5/18/2024 10:16:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.XMediaJSC (M)
16.1.27.15

File size:
358.1 KB (366,680 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Nullsoft Install System)

Digital Signature
Signed by:
X-Media JSC

Authority:
COMODO CA Limited

Valid from:
7/21/2014 5:00:00 PM

Valid to:
7/21/2016 4:59:59 PM

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=10000, C=VN

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00B2A816498972D731C4998D8C6965DAA9

File PE Metadata
Compilation timestamp:
10/6/2014 9:40:23 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:78Dsp+FNX1dFOvDlXJuIH687mPQ9TiN24gx:78dNXSEl87mPaLL

Entry address:
0x30E2

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 90, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, 1C, 71, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 09, A3, 78, E4, 42, 00, E8, A8, 2D, 00, 00, A3, C4, E3, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, 00, 88, 42, 00, FF, 15, 64, 71, 40, 00, 68, 80, 91, 40, 00, 68, C0, DB, 42, 00, E8, 52, 2A, 00, 00, FF, 15, 20, 71, 40, 00, BD, 00, 40, 43, 00, 50, 55, E8, 40, 2A...
 
[+]

Entropy:
4.1954

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://cdm.tuviviet.net/fxv.ashx?hex=e5555f71fe3ece6fb1f23a70e0a24eb2&ti=2E601EFBB5560EDAC68432429E8CE745C52B50CA4AD2BAC4&ibe=C9DEF37C23D45CB3D3CCA7E235D0EB49A060EFCC84A80E93&lke=26B40E6430F543D1DA9AF6EF01EB9BDA8ECF420A844CA095D528BC1197606C2C

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