browser.exe

Yandex

YANDEX LLC

The executable browser.exe has been detected as malware by 14 anti-virus scanners. It runs as a scheduled task under the Windows Task Scheduler triggered daily at a specified time. While running, it connects to the Internet address yandex.ru on port 443.
Publisher:
YANDEX LLC  (signed and verified)

Product:
Yandex

Version:
46.0.2490.6475

MD5:
8d53e9903d73afc0453eb75b70777e39

SHA-1:
2784d95073a3b325f313cebcedda827488f22be1

SHA-256:
58aca34b45d24d36627384ad802bc9723082a2faeebdfb2f284d1128a1d907c3

Scanner detections:
14 / 68

Status:
Malware

Analysis date:
12/17/2017 5:13:53 AM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.HfsAutoB
1.3.0.7237

Dr.Web
MULDROP.Trojan
9.0.1.0358

Emsisoft Anti-Malware
Gen:Variant.Symmi.37420
8.15.12.24.02

K7 AntiVirus
Virus
13.210.17320

K7 Gateway Antivirus
Virus
13.210.17320

McAfee
Virus.W32/Pate.b
5600.6541

McAfee Web Gateway
BehavesLike.Win32.Pate.vm
7.6541

Microsoft Security Essentials
Threat.Undefined
1.207.757.0

Quick Heal
W32.Perite.A
12.15.14.00

The Hacker
W32/Pate.B
6.8.0.5.678

Total Defense
Win32/Pinfi.A
37.1.62.1

Trend Micro House Call
PE_PARITE.A
7.2.358

Trend Micro
PE_PARITE.A
10.465.24

VIPRE Antivirus
Threat.46249
42326

File size:
1.9 MB (2,026,960 bytes)

Product version:
46.0.2490.6475

Copyright:
Copyright © 2012-2015 YANDEX LLC. All Rights Reserved.

Original file name:
browser.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\yandex\yandexbrowser\application\browser.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/14/2013 12:00:00 PM

Valid to:
1/15/2016 11:59:59 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:
12/21/2015 8:08:41 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
24576:quQuGywdJB1n+m7+RmPYVKm5Ba6463RNhh:+usJB1f+0PWKABxth

Entry address:
0x4F914

Entry point:
E8, 10, A2, 00, 00, E9, 7F, FE, FF, FF, CC, CC, 57, 56, 53, 33, FF, 8B, 44, 24, 14, 0B, C0, 7D, 14, 47, 8B, 54, 24, 10, F7, D8, F7, DA, 83, D8, 00, 89, 44, 24, 14, 89, 54, 24, 10, 8B, 44, 24, 1C, 0B, C0, 7D, 14, 47, 8B, 54, 24, 18, F7, D8, F7, DA, 83, D8, 00, 89, 44, 24, 1C, 89, 54, 24, 18, 0B, C0, 75, 18, 8B, 4C, 24, 18, 8B, 44, 24, 14, 33, D2, F7, F1, 8B, D8, 8B, 44, 24, 10, F7, F1, 8B, D3, EB, 41, 8B, D8, 8B, 4C, 24, 18, 8B, 54, 24, 14, 8B, 44, 24, 10, D1, EB, D1, D9, D1, EA, D1, D8, 0B, DB, 75, F4, F7...
 
[+]

Code size:
427 KB (437,248 bytes)

Scheduled Task
Task name:
Yandex.Browser güncellemesi

Trigger:
Daily (Runs daily at 16:17)

Description:
Yandex.Browser güncellemesi


The executing file has been seen to make the following network communications in live environments.

TCP (HTTP SSL):
Connects to xiva-daria.mail.yandex.net  (77.88.21.179:443)

TCP (HTTP SSL):
Connects to mobile.yandex.net  (77.88.21.110:443)

TCP (HTTP SSL):
Connects to storage.mds.yandex.net  (213.180.204.158:443)

TCP (HTTP SSL):
Connects to api.browser.yandex.ru  (213.180.204.82:443)

TCP (HTTP SSL):
Connects to video-tub.yandex.ru  (213.180.204.101:443)

TCP (HTTP SSL):
Connects to yandex.ru  (77.88.55.55:443)

TCP (HTTP SSL):
Connects to yabs.yandex.ru  (87.250.250.91:443)

TCP (HTTP SSL):
Connects to storage.ape.yandex.net  (93.158.134.55:443)

TCP (HTTP SSL):
Connects to static.yandex.net  (178.154.131.217:443)

TCP (HTTP SSL):
Connects to sba.search.yandex.net  (213.180.204.232:443)

TCP (HTTP SSL):
Connects to mc.yandex.ru  (87.250.250.119:443)

TCP (HTTP SSL):
Connects to kiks.yandex.ru  (213.180.204.143:443)

TCP (HTTP SSL):
Connects to im-tub.yandex.ru  (93.158.134.60:443)

TCP (HTTP SSL):
Connects to favicon.yandex.net  (213.180.204.36:443)

TCP (HTTP SSL):
Connects to csgw1.anonymox.net  (148.251.55.148:443)

TCP (HTTP SSL):
Connects to awaps.yandex.ru  (213.180.193.131:443)

TCP (HTTP SSL):
Connects to avatars.mds.yandex.net  (87.250.247.181:443)

TCP (HTTP SSL):
Connects to yandexadexchange.net  (87.250.251.26:443)

TCP (HTTP SSL):
Connects to webattach.mail.yandex.net  (77.88.21.64:443)

TCP (HTTP SSL):
Connects to top-fwz1.mail.ru  (217.69.136.176:443)

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