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helper.exe

BEIJING KUWO TECHNOLOGY CO.,LTD.

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from 111.23.10.43 and multiple other hosts.
Publisher:
BEIJING KUWO TECHNOLOGY CO.,LTD.  (signed and verified)

MD5:
361fb3d5d542ce889bad70e62beaa062

SHA-1:
c55b06a3a6898f6b2009d6ca70db400b07232cbb

SHA-256:
d6478e5ee1cb5c81ebac11825c5e4d038672ddd55c89ddf07b2c4dca45c0624a

Scanner detections:
2 / 68

Status:
Clean  (2 probable false positive detections)

Explanation:
These detections are probably false positives (erroneous), the file is probably malware free.

Analysis date:
4/27/2024 3:25:56 AM UTC  (today)

Scan engine
Detection
Engine version

NANO AntiVirus
Trojan.Win32.Starter.csihlg
0.28.0.58101

Sophos
Address Tool Bar
4.98

File size:
549.2 KB (562,344 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
BEIJING KUWO TECHNOLOGY CO.,LTD.

Authority:
VeriSign, Inc.

Valid from:
11/4/2013 8:00:00 AM

Valid to:
1/3/2017 7:59:59 AM

Subject:
CN="BEIJING KUWO TECHNOLOGY CO.,LTD.", OU=KUWO MUSIC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O="BEIJING KUWO TECHNOLOGY CO.,LTD.", L=Beijing, S=Beijing, 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:
50DA1504909F7273486D47AC0AB74675

File PE Metadata
Compilation timestamp:
12/6/2009 6:50:46 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:HMfKkYfdku9z+ncY9GvE6cBXRzUpSlVgRgT3/yqoLOag6XLGOmkjbtzf:HN3hycYp/7+j7GOhj5zf

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.9789

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file helper.exe has been seen being distributed by the following 5 URLs.

http://111.23.10.43/cache/down.koowo.com/mbox_data/plugin/.../Helper.exe

http://221.182.132.19/down.koowo.com/mbox_data/plugin/.../Helper.exe

http://58.27.38.10/down.koowo.com/mbox_data/plugin/.../Helper.exe

http://45.64.22.93/down.koowo.com/mbox_data/plugin/.../Helper.exe

http://down.koowo.com/mbox_data/plugin/.../Helper.exe

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