Home / malware

PDF

SoftwareBundler:Win32/Coolnetry

First posted on 15 October 2015.
Source: Microsoft

Aliases :

There are no other names known for SoftwareBundler:Win32/Coolnetry.

Explanation :

Threat behavior

Installation
This threat can create files on your PC, including:

• %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_cr.exe
• %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_is.exe
• %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_mb_1.exe
• %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_sol.exe
• %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch_br.exe
• %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch_nj.exe

It can make various registry changes during its installation, including:

In subkey: HKLM\Software\Google\Update\ClientState\{430FD4D0-B729-4F61-AA34-91526481799D}\CurrentState
Sets value: "StateValue"
With data: "0x00000003"

Sets value: "StateValue"
With data: "0x00000011"
In subkey: HKLM\Software\Google\Update\ClientState\{4DC8B4CA-1BDA-483E-B5FA-D3C12E15B62D}\CurrentState

Sets value: "StateValue"
With data: "0x00000011"
In subkey: HKLM\Software\Google\Update\ClientState\{8A69D345-D564-463C-AFF1-A69D9E530F96}\CurrentState

Sets value: "StateValue"
With data: "0x00000011"
In subkey: HKLM\Software\Google\Update\ClientState\{FDA71E6F-AC4C-4A00-8B70-9958A68906BF}\CurrentState

In subkey: HKLM\Software\Google\Update\ClientState\{FDA71E6F-AC4C-4A00-8B70-9958A68906BF}\CurrentState
Sets value: "StateValue"
With data: "0x00000011"



The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.



Payload


Connects to a remote host

We have seen this threat connect to a remote host, including:

• www.netcoolery.net using port 80

Malware can connect to a remote host to do any of the following:

• Check for an Internet connection
• Download and run files (including updates or other malware)
• Report a new infection to its author
• Receive configuration or other data
• Receive instructions from a malicious hacker
• Search for your PC location
• Upload information taken from your PC
• Validate a digital certificate

It can stop some processes from running on your PC, including:

• xgoskxbmjejidbc8nanlomch_mb_1.exe
• XGoskXbMjeJiDBC8NaNlomch_mb_1.exe

Additional information

Creates a mutex

This threat can create a mutex on your PC. For example:

• FirefoxStartupMutex

It might use this mutex as an infection marker to prevent more than one copy of the threat running on your PC.



This malware description was published using automated analysis of file SHA1 18cc5375ae333549797747644f3174ede96d7951.

Symptoms

The following can indicate that you have this threat on your PC:

• You see a file similar to:
  • %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_cr.exe
  • %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_is.exe
  • %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_mb_1.exe
  • %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomch_sol.exe
  • %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch_br.exe
  • %TEMP%\temp\oxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch\xgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomchxgoskxbmjejidbc8nanlomch_nj.exe

• You see registry modifications such as:
  
  • In subkey: HKLM\Software\Google\Update\ClientState\{430FD4D0-B729-4F61-AA34-91526481799D}\CurrentState
    Sets value: "StateValue"
    With data: "0x00000003"
    
    
  • In subkey: HKLM\Software\Google\Update\ClientState\{430FD4D0-B729-4F61-AA34-91526481799D}\CurrentState
    Sets value: "StateValue"
    With data: "0x00000011"
    
    
  • In subkey: HKLM\Software\Google\Update\ClientState\{4DC8B4CA-1BDA-483E-B5FA-D3C12E15B62D}\CurrentState
    Sets value: "StateValue"
    With data: "0x00000011"
    
    
  • In subkey: HKLM\Software\Google\Update\ClientState\{8A69D345-D564-463C-AFF1-A69D9E530F96}\CurrentState
    Sets value: "StateValue"
    With data: "0x00000011"
    
    
  • In subkey: HKLM\Software\Google\Update\ClientState\{FDA71E6F-AC4C-4A00-8B70-9958A68906BF}\CurrentState
    Sets value: "StateValue"
    With data: "0x00000011"
    
    

• You see the following mutex:
  • FirefoxStartupMutex

Last update 15 October 2015

 

TOP