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yaxxb.exe

Baidu (China) Co., Ltd.

The application yaxxb.exe by Baidu (China) Co. has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from shadu.baidu.com.
Publisher:
Baidu (China) Co., Ltd.  (signed and verified)

MD5:
e663a53e702c961b84b9fc145493fc49

SHA-1:
2a58565b4ceb008247ebd58460771c94c32189df

SHA-256:
e7b3f2da6fdfb5e32d7004a3c731155399a061f6d001fe8bf95a07cc889d2a25

Scanner detections:
3 / 68

Status:
Potentially unwanted

Analysis date:
4/19/2024 10:03:51 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Downloader (M)
16.12.2.21

Vba32 AntiVirus
Signed-Adware.Hao123.BaiduChinaCo
3.12.26.3

Zillya! Antivirus
Trojan.MicroFake.Win32.4915
2.0.0.2042

File size:
1.4 MB (1,495,848 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\yaxxb.exe

Digital Signature
Signed by:
Baidu (China) Co., Ltd.

Authority:
GlobalSign nv-sa

Valid from:
2/22/2012 5:18:27 PM

Valid to:
2/22/2015 5:18:27 PM

Subject:
CN="Baidu (China) Co., Ltd.", O="Baidu (China) Co., Ltd.", L=Shanghai, S=Shanghai, C=CN

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121DF7675AAA08D1B49A83A480F14855D24

File PE Metadata
Compilation timestamp:
2/25/2012 3:19:59 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
24576:Xu67b+E4qCdLDZhKM8/Cr5R9ar/owbBCiXiGAYwlAxzEFR5br/Z7wrCzmNkN7:hXoRNnhbr9arwwboUQyxzEb77mAF7

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:
7.9810

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

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

http://shadu.baidu.com/index/.../90000055

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