81f251c43569646c8f92efd43b52d41854982c98

Qingdao Ruanmei Network Technology Co.,Ltd.

The file 81f251c43569646c8f92efd43b52d41854982c98 by Qingdao Ruanmei Network Technology Co.,Ltd has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is installed within the Mozilla Firefox web browser as part of an addin/plugin.
Publisher:

MD5:
de8ef5136a6842884782056c54fd82e3

SHA-1:
fce5e1ddd64a94eb83387d32a58b9f14b5e5c83f

SHA-256:
6c03a087e482475f8b14bfe74017b14486da1bfbf59f25ed0fecf66c392f4745

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
11/23/2024 7:48:05 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.2.18.20

File size:
12.2 MB (12,771,420 bytes)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\mozilla\firefox\profiles\{user}.default\cache2\entries\81f251c43569646c8f92efd43b52d41854982c98

Digital Signature
Authority:
VeriSign, Inc.

Valid from:
3/13/2016 8:00:00 AM

Valid to:
8/27/2017 7:59:59 AM

Subject:
CN="Qingdao Ruanmei Network Technology Co.,Ltd.", OU=IT, O="Qingdao Ruanmei Network Technology Co.,Ltd.", L=Qingdao, S=Shandong, C=CN

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:
50284BE9AB1A229C8F2C9FDD7B7E4AE4

File PE Metadata
Compilation timestamp:
9/26/2011 9:21:33 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

Entry address:
0x39E3

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, D8, 91, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Entropy:
7.9995

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

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