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lstwupjnu.exe

Beijing Caiyunshidai Technology Co., Ltd.

The application lstwupjnu.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-54-230-187-98.cdg51.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Beijing Caiyunshidai Technology Co., Ltd.  (signed and verified)

MD5:
30c0224d185b234eaeef39bb9e88ad56

SHA-1:
98347873e09b8994bf0f94b42f74cf6e08954116

SHA-256:
9ec7c9f39d0ef7d0add032728da7fc7d6941f94b4f5a77262a28caf142e37466

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
12/24/2024 4:54:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.ELEX.SpeedSearch (M)
17.2.11.12

File size:
399.7 KB (409,320 bytes)

File type:
Executable application (Win32 EXE)

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

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

Authority:
thawte, Inc.

Valid from:
1/22/2017 6:00:00 PM

Valid to:
3/3/2017 5:59:59 PM

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:
011AE675B36A4BE7F940903CF54E8522

File PE Metadata
Compilation timestamp:
2/9/2017 3:36:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x9C3A

Entry point:
E8, 9B, BC, FF, FF, E9, 07, 19, 00, 00, 3B, 0D, 00, 10, 46, 00, 75, 02, F3, C3, E9, FC, B7, FF, FF, 6A, 64, 68, D8, 02, 46, 00, E8, 31, 1B, 00, 00, 6A, 0B, E8, AB, E9, FF, FF, 59, 33, DB, 89, 5D, FC, 6A, 40, 6A, 20, 5F, 57, E8, 00, 95, FF, FF, 59, 59, 8B, C8, 89, 4D, DC, 85, C9, 75, 1B, 6A, FE, 8D, 45, F0, 50, 68, 00, 10, 46, 00, E8, 4E, 2E, 00, 00, 83, C4, 0C, 83, C8, FF, E9, 5B, 02, 00, 00, A3, F0, 2E, 46, 00, 89, 3D, 4C, 5B, 46, 00, 05, 00, 08, 00, 00, 3B, C8, 73, 31, 66, C7, 41, 04, 00, 0A, 83, 09, FF...
 
[+]

Entropy:
7.8220  (probably packed)

Code size:
359 KB (367,616 bytes)

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

TCP (HTTP):
Connects to server-54-230-187-98.cdg51.r.cloudfront.net  (54.230.187.98:80)

TCP (HTTP):
Connects to server-54-230-187-46.cdg51.r.cloudfront.net  (54.230.187.46:80)

TCP (HTTP):
Connects to server-54-230-187-131.cdg51.r.cloudfront.net  (54.230.187.131:80)

TCP (HTTP):
Connects to server-54-230-187-196.cdg51.r.cloudfront.net  (54.230.187.196:80)

TCP (HTTP):
Connects to server-54-230-187-209.cdg51.r.cloudfront.net  (54.230.187.209:80)

TCP (HTTP):
Connects to server-54-230-187-76.cdg51.r.cloudfront.net  (54.230.187.76:80)

TCP (HTTP):
Connects to server-54-230-187-110.cdg51.r.cloudfront.net  (54.230.187.110:80)

TCP (HTTP):
Connects to server-54-230-187-252.cdg51.r.cloudfront.net  (54.230.187.252:80)

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