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lyi_my.exe

Beijing Caiyunshidai Technology Co., Ltd.

The application lyi_my.exe by Beijing Caiyunshidai Technology Co. has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address server-52-84-132-188.atl52.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Beijing Caiyunshidai Technology Co., Ltd.  (signed and verified)

MD5:
eba4b053734f0869cfe91b15f7cd6961

SHA-1:
418d1aba3baca95464a8158a927066deeee5b7c6

SHA-256:
096aa7ca14dd55ed7adb5aa2a59b4dcef846d4f6f20af88f4332c5f299bcbd92

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
2/25/2025 6:40:55 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.ELEX.SpeedSearch (M)
17.2.3.0

File size:
408.8 KB (418,568 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Beijing Caiyunshidai Technology Co., Ltd.

Authority:
thawte, Inc.

Valid from:
1/21/2017 7:00:00 AM

Valid to:
3/4/2017 6:59:59 AM

Subject:
CN="Beijing Caiyunshidai Technology Co., Ltd.", O="Beijing Caiyunshidai Technology Co., Ltd.", L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
378DEFDD636617682E5EC12F97DFF1D2

File PE Metadata
Compilation timestamp:
1/19/2017 11:29:07 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x26D7

Entry point:
E8, 85, 2C, 00, 00, E9, 4B, 8E, 00, 00, 55, 8B, EC, 53, 56, 57, 33, FF, BB, E3, 00, 00, 00, 8D, 04, 3B, 99, 2B, C2, 8B, F0, D1, FE, 6A, 55, FF, 34, F5, 38, F5, 45, 00, FF, 75, 08, E8, 23, F5, FF, FF, 83, C4, 0C, 85, C0, 74, 13, 79, 05, 8D, 5E, FF, EB, 03, 8D, 7E, 01, 3B, FB, 7E, D0, 83, C8, FF, EB, 07, 8B, 04, F5, 3C, F5, 45, 00, 5F, 5E, 5B, 5D, C3, 55, 8B, EC, 8B, 4D, 08, 33, C0, 3B, 0C, C5, E8, D1, 45, 00, 74, 0A, 40, 83, F8, 17, 72, F1, 33, C0, 5D, C3, 8B, 04, C5, EC, D1, 45, 00, 5D, C3, 55, 8B, EC, 51...
 
[+]

Entropy:
7.8243  (probably packed)

Code size:
365 KB (373,760 bytes)

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

TCP (HTTP):
Connects to server-52-84-132-182.atl52.r.cloudfront.net  (52.84.132.182:80)

TCP (HTTP):
Connects to server-52-84-132-188.atl52.r.cloudfront.net  (52.84.132.188:80)

TCP (HTTP):
Connects to server-52-84-132-113.atl52.r.cloudfront.net  (52.84.132.113:80)

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