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67b1f028_stp.exe

Mail.Ru Switcher

Mail.Ru LLC

The application 67b1f028_stp.exe by Mail.Ru has been detected as a potentially unwanted program by 2 anti-malware scanners. The file has been seen being downloaded from gosoftdl.mail.ru. While running, it connects to the Internet address moscow.cdnmail.ru on port 443.
Publisher:
Mail.Ru  (signed by Mail.Ru LLC)

Product:
Mail.Ru Switcher

Version:
3.9.0.3

MD5:
161e92c849c1758105d9d6bde7b77673

SHA-1:
64bf2ed70f3a252197b9f298d4141de9290c4868

SHA-256:
34b3dc8e78630c2f64152183fb82bdedc635dd1050ddaa5ecf6daf1632d7d1f2

Scanner detections:
2 / 68

Status:
Potentially unwanted

Analysis date:
1/12/2025 7:43:34 PM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/MailRu.D potentially unwanted application
6.3.12010.0

Reason Heuristics
Adware.Bundler (M)
17.1.5.16

File size:
1.8 MB (1,918,592 bytes)

Product version:
3.9.0.3

Copyright:
Copyright 2015

Original file name:
mrswitcher.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\67b1f028_stp.exe

Digital Signature
Signed by:
Mail.Ru LLC

Authority:
Symantec Corporation

Valid from:
7/6/2016 3:00:00 AM

Valid to:
7/7/2017 2:59:59 AM

Subject:
CN=Mail.Ru LLC, O=Mail.Ru LLC, L=Moscow, S=Moscow, C=RU

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
16F89FF5A6CD11A76E9963DAC485D65F

File PE Metadata
Compilation timestamp:
9/28/2016 7:13:20 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
49152:aBHM1nSyOjNCEDuQFP3j6Eb8VA8Z5n80/w1S:aB+nSyOjNruQ6Eb8V3p84

Entry address:
0xA21E2

Entry point:
E8, C2, EA, 00, 00, E9, 7F, FE, FF, FF, CC, CC, CC, CC, E9, 37, 18, 00, 00, FF, 35, BC, 59, 5C, 00, FF, 15, B8, F1, 57, 00, 85, C0, 74, 02, FF, D0, 6A, 01, 6A, 00, E8, E5, AB, 00, 00, 59, 59, E9, FD, AB, 00, 00, 55, 8B, EC, 83, EC, 10, EB, 0D, FF, 75, 08, E8, 48, EE, 00, 00, 59, 85, C0, 74, 11, FF, 75, 08, E8, 70, 3D, 00, 00, 59, 85, C0, 74, E6, 8B, E5, 5D, C3, 6A, 01, 8D, 45, FC, C7, 45, FC, 28, 31, 58, 00, 50, 8D, 4D, F0, E8, 6B, 08, 00, 00, 68, 68, 06, 5B, 00, 8D, 45, F0, C7, 45, F0, 20, 31, 58, 00, 50...
 
[+]

Entropy:
6.6002

Code size:
1.5 MB (1,563,648 bytes)

The file 67b1f028_stp.exe has been seen being distributed by the following URL.

https://gosoftdl.mail.ru/sw161e92.exe

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

TCP (HTTP SSL):
Connects to moscow.cdnmail.ru  (94.100.180.110:443)

TCP (HTTP):
Connects to mrds.mail.ru  (217.69.139.245:80)

TCP (HTTP SSL):
Connects to conserv.go.mail.ru  (217.69.139.122:443)

TCP (HTTP):
Connects to hosted-by.ihc.ru  (185.22.234.113:80)

TCP (HTTP):
Connects to app-gw1.argonlabs.ru  (178.32.30.51:80)

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