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yandexpacksetup.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 yandexpacksetup.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. This is a setup and installation application and has been known to bundle potentially unwanted software. The file has been seen being downloaded from downloader.yandex.net.cache-default06f.cdn.yandex.net and multiple other hosts.
Publisher:
Microsoft Corporation  (signed by YANDEX LLC)

Product:
Windows Installer XML

Description:
Software Installer

Version:
3.0.5419.0

MD5:
9a5a5959f809823786c9d7e360704c0d

SHA-1:
848eb64889edf1b8e7aa68fa2d56ac64276b824a

SHA-256:
0b44df53245c4c8e182711911163eada0ea156e24c0a1f991ebbea76d08d48ec

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
5/21/2024 5:52:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yandex.Pack.Installer.Meta (L)
16.4.25.21

File size:
31.3 MB (32,778,552 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\microsoft\windows\temporary internet files\content.ie5\{random}\yandexpacksetup.exe

Digital Signature
Signed by:
YANDEX LLC

Authority:
VeriSign, Inc.

Valid from:
1/15/2013 6:00:00 AM

Valid to:
1/16/2016 5:59:59 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:
7/31/2014 8:40:18 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
786432:cwgYY07/xuoLLKLYakGbN+/xaZFlcjKZDb2bJiKMap:cw/dwoHUYebY8ZFtb2bBMq

Entry address:
0x15A6E

Entry point:
E8, AA, B0, 00, 00, E9, 78, FE, FF, FF, CC, CC, CC, CC, CC, CC, 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, 04, 53, 43, 00, 00, 74, 16, 57, 56, 83, E7, 0F, 83, E6, 0F, 3B, FE, 5E, 5F, 75, 08, 5E, 5F, 5D, E9, 41, 8C, 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, F4, 5B, 41, 00, 90, 8B, C7, BA, 03, 00, 00, 00, 83, E9, 04...
 
[+]

Code size:
167 KB (171,008 bytes)

The file yandexpacksetup.exe has been seen being distributed by the following 3 URLs.

http://downloader.yandex.net.cache-default06f.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

http://downloader.yandex.net.cache-default06h.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

http://downloader.yandex.net.cache-novosibirsk03.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

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