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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-default06e.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:
911ed332ffc6af75afba0df908253241

SHA-1:
6f2f0937897bfb5bb15d510eed44986bc0654246

SHA-256:
6317c1012662363b4c9efc6025536564babc20072848f6298311f1faf272ffad

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/23/2024 3:01:00 PM UTC  (today)

Scan engine
Detection
Engine version

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

File size:
30.8 MB (32,330,576 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\yandexpacksetup.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:
4/23/2014 8:12:59 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
393216:Mn1MijjEiMcmumwMtLMDqLK8GMjIAeIo1p3PgbRkfr8rbOE79TrZjTkuM/XVTIlD:xis1wMB43MsAg1p5faRBviLNM120J1

Entry address:
0x14E94

Entry point:
E8, 54, A3, 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, E4, 31, 43, 00, 00, 74, 16, 57, 56, 83, E7, 0F, 83, E6, 0F, 3B, FE, 5E, 5F, 75, 08, 5E, 5F, 5D, E9, 11, 80, 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, 14, 50, 41, 00, 90, 8B, C7, BA, 03, 00, 00, 00, 83, E9, 04, 72, 0C, 83, E0, 03, 03...
 
[+]

Code size:
160 KB (163,840 bytes)

The file yandexpacksetup.exe has been seen being distributed by the following 4 URLs.

http://downloader.yandex.net.cache-default06e.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

http://downloader.yandex.net.cache-ams05.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

http://downloader.yandex.net.cache-kiev05.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

http://downloader.yandex.net.cache-kiev04.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

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