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yandexsearch.exe

Windows Installer XML

YANDEX LLC

While the file properties state the file is developed by 'Microsoft Corporation', this is not the case and it is designed just to look like a legitimate Microsoft system file. The application yandexsearch.exe, “Software Installer” by YANDEX has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. The file has been seen being downloaded from downloader.yandex.net.cache-ekt02.cdn.yandex.net.
Publisher:
Microsoft Corporation  (signed by YANDEX LLC)

Product:
Windows Installer XML

Description:
Software Installer

Version:
3.0.5419.0

MD5:
986a85babe7900c175d9400d2d2309d0

SHA-1:
4866264a749308135006a75297da5da5d898b07d

SHA-256:
355fa6bb0d561815ea42532bfe4a02361899089007e4f0d4c415e7c0415c3033

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/28/2024 9:01:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yandex.Search.Installer.Meta (M)
16.4.22.13

File size:
1.9 MB (1,949,016 bytes)

Product version:
3.0.5419.0

Copyright:
Copyright (c) Microsoft Corporation.  All rights reserved.

Original file name:
setup.exe

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
YANDEX LLC

Authority:
VeriSign, Inc.

Valid from:
1/15/2013 4:00:00 AM

Valid to:
1/16/2016 3:59:59 AM

Subject:
CN=YANDEX LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=YANDEX LLC, L=Moscow, S=Moscow, C=RU

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
3667E158B524C8FFBFE538172786F1E2

File PE Metadata
Compilation timestamp:
10/17/2013 12:46:10 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
49152:AJVESRvgW5qW18W1XW5mW5mW5mW5nl1uI+ncBIUZKKhi5hzo:AJVESpu1uIEyZS

Entry address:
0x3D24

Entry point:
E8, B3, 3D, 00, 00, E9, 78, FE, FF, FF, CC, CC, 55, 8B, EC, 57, 56, 8B, 75, 0C, 8B, 4D, 10, 8B, 7D, 08, 8B, C1, 8B, D1, 03, C6, 3B, FE, 76, 08, 3B, F8, 0F, 82, A4, 01, 00, 00, 81, F9, 00, 01, 00, 00, 72, 1F, 83, 3D, 78, 9C, 41, 00, 00, 74, 16, 57, 56, 83, E7, 0F, 83, E6, 0F, 3B, FE, 5E, 5F, 75, 08, 5E, 5F, 5D, E9, 82, 3E, 00, 00, F7, C7, 03, 00, 00, 00, 75, 15, C1, E9, 02, 83, E2, 03, 83, F9, 08, 72, 2A, F3, A5, FF, 24, 95, A4, 3E, 40, 00, 90, 8B, C7, BA, 03, 00, 00, 00, 83, E9, 04, 72, 0C, 83, E0, 03, 03...
 
[+]

Entropy:
6.6751

Code size:
64.5 KB (66,048 bytes)

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

http://downloader.yandex.net.cache-ekt02.cdn.yandex.net/yandex-pack/.../YandexSearch.exe

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