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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 self-extracting archive and installer and has been known to bundle potentially unwanted software. The file has been seen being downloaded from downloader.yandex.net.cache-kiev11.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:
c682aadac874eb51aaf6571bc782ad57

SHA-1:
6d358c9e79ecc8ec3b15f1eaff84af9d09e36a8e

SHA-256:
e05b918370815509686fc59bccf36210ac340a1c2c7788002fd71cacc32d9899

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/23/2024 7:52:34 PM UTC  (today)

Scan engine
Detection
Engine version

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

File size:
30.7 MB (32,185,656 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 3:00:00 AM

Valid to:
1/16/2016 2:59:59 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):
393216:4s1MijjEiMcyumwMtLM7qLK8GMjIAeIouUbPgbtkfr8rbOe79TrZjTkuMHXVTIld:Mis1wMBc3MsAgB5faTBviLFM128j1

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...
 
[+]

Code size:
64.5 KB (66,048 bytes)

The file yandexpacksetup.exe has been seen being distributed by the following 2 URLs.

http://downloader.yandex.net.cache-kiev11.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

http://downloader.yandex.net.cache-default02g.cdn.yandex.net/yandex-pack/.../YandexPackSetup.exe

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