Trojan.DownLoader25.48164

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Cryptographic VC TPM Awareness PNRP AutoConnect' = '<SYSTEM32>\kmbozun.exe'

Creates the following services:

[<HKLM>\SYSTEM\ControlSet001\Services\Search Defender File Proxy Biometric] 'ImagePath' = '<SYSTEM32>\kmbozun.exe'
[<HKLM>\SYSTEM\ControlSet001\Services\Search Defender File Proxy Biometric] 'Start' = '00000002'

Malicious functions:

To complicate detection of its presence in the operating system,

blocks the following features:

Windows Security Center

Creates and executes the following:

'<SYSTEM32>\dgjawhmaak.exe' "<SYSTEM32>\kmbozun.exe"
'%WINDIR%\Temp\ifialz3k9mikl.exe' -r 34087 tcp
'%TEMP%\ifialz3b6siklvjpmgz.exe'
'<SYSTEM32>\kmbozun.exe'

Modifies file system:

Creates the following files:

<SYSTEM32>\vegtiao\run
<SYSTEM32>\vegtiao\rng
%WINDIR%\Temp\ifialz3k9mikl.exe
<SYSTEM32>\vegtiao\cfg
<SYSTEM32>\dgjawhmaak.exe
%TEMP%\ifialz3b6siklvjpmgz.exe
<SYSTEM32>\vegtiao\tst
<SYSTEM32>\kmbozun.exe
<SYSTEM32>\vegtiao\etc

Sets the 'hidden' attribute to the following files:

<SYSTEM32>\dgjawhmaak.exe
<SYSTEM32>\kmbozun.exe

Deletes the following files:

%WINDIR%\Temp\ifialz3k9mikl.exe
<DRIVERS>\etc\hosts
%TEMP%\ifialz3b6siklvjpmgz.exe

Substitutes the HOSTS file.

Network activity:

Connects to:

'le###edge.net':80
'to###ray.net':80
'le###army.net':80
'se###edge.net':80
'fa###pril.net':80
'to###rmy.net':80
'fa###ray.net':80
'to###pril.net':80
'se###army.net':80
'pl###edge.net':80
'fi###dge.net':80
'pl###army.net':80
'fi###rmy.net':80
'se###april.net':80
'le###april.net':80
'se###gray.net':80
'le###gray.net':80
'pi###gray.net':80
'mu###ray.net':80
'we###dge.net':80
've###dge.net':80
'pi###army.net':80
'mu###rmy.net':80
'pi###april.net':80
'mu###pril.net':80
've###rmy.net':80
'fa###dge.net':80
'we###ray.net':80
'fa###rmy.net':80
'to###dge.net':80
've###pril.net':80
'we###rmy.net':80
've###ray.net':80
'we###pril.net':80
'fi###pril.net':80
'al###being.net':80
'ri###nstorm.net':80
'pr####tbottom.net':80
'ca####nbring.net':80
'tr###gray.net':80
'yo###ray.net':80
'wa###edge.net':80
'ta###edge.net':80
'mo###olor.net':80
'jo####ymeasure.net':80
'cr#####onaraminta.net':80
'ef###tbuilt.net':80
'th###while.net':80
'mi###hown.net':80
'ab###ell.net':80
'le###form.net':80
'mo###ugust.net':80
'vi###rmy.net':80
'lr###edge.net':80
'vi###pril.net':80
'lr###army.net':80
'fi###ray.net':80
'pl###april.net':80
'vi###dge.net':80
'pl###gray.net':80
'lr###april.net':80
'tr###army.net':80
'yo###rmy.net':80
'tr###april.net':80
'yo###pril.net':80
'lr###gray.net':80
'vi###ray.net':80
'tr###edge.net':80
'yo###dge.net':80

TCP:

HTTP GET requests:

http://le###edge.net/index.php
http://to###ray.net/index.php
http://le###army.net/index.php
http://se###edge.net/index.php
http://fa###pril.net/index.php
http://to###rmy.net/index.php
http://fa###ray.net/index.php
http://to###pril.net/index.php
http://se###army.net/index.php
http://pl###edge.net/index.php
http://fi###dge.net/index.php
http://pl###army.net/index.php
http://fi###rmy.net/index.php
http://se###april.net/index.php
http://le###april.net/index.php
http://se###gray.net/index.php
http://le###gray.net/index.php
http://pi###gray.net/index.php
http://mu###ray.net/index.php
http://we###dge.net/index.php
http://ve###dge.net/index.php
http://pi###army.net/index.php
http://mu###rmy.net/index.php
http://pi###april.net/index.php
http://mu###pril.net/index.php
http://ve###rmy.net/index.php
http://fa###dge.net/index.php
http://we###ray.net/index.php
http://fa###rmy.net/index.php
http://to###dge.net/index.php
http://ve###pril.net/index.php
http://we###rmy.net/index.php
http://ve###ray.net/index.php
http://we###pril.net/index.php
http://fi###pril.net/index.php
http://al###being.net/index.php
http://ri###nstorm.net/index.php
http://pr####tbottom.net/index.php
http://ca####nbring.net/index.php
http://tr###gray.net/index.php
http://yo###ray.net/index.php
http://wa###edge.net/index.php
http://ta###edge.net/index.php
http://mo###olor.net/index.php
http://jo####ymeasure.net/index.php
http://cr#####onaraminta.net/index.php
http://ef###tbuilt.net/index.php
http://th###while.net/index.php
http://mi###hown.net/index.php
http://ab###ell.net/index.php
http://le###form.net/index.php
http://mo###ugust.net/index.php
http://vi###rmy.net/index.php
http://lr###edge.net/index.php
http://vi###pril.net/index.php
http://lr###army.net/index.php
http://fi###ray.net/index.php
http://pl###april.net/index.php
http://vi###dge.net/index.php
http://pl###gray.net/index.php
http://lr###april.net/index.php
http://tr###army.net/index.php
http://yo###rmy.net/index.php
http://tr###april.net/index.php
http://yo###pril.net/index.php
http://lr###gray.net/index.php
http://vi###ray.net/index.php
http://tr###edge.net/index.php
http://yo###dge.net/index.php

UDP:

DNS ASK se###edge.net
DNS ASK le###edge.net
DNS ASK se###army.net
DNS ASK le###army.net
DNS ASK to###pril.net
DNS ASK fa###pril.net
DNS ASK to###ray.net
DNS ASK fa###ray.net
DNS ASK le###april.net
DNS ASK fi###rmy.net
DNS ASK pl###edge.net
DNS ASK fi###pril.net
DNS ASK pl###army.net
DNS ASK le###gray.net
DNS ASK se###april.net
DNS ASK fi###dge.net
DNS ASK se###gray.net
DNS ASK to###rmy.net
DNS ASK pi###gray.net
DNS ASK mu###ray.net
DNS ASK we###dge.net
DNS ASK ve###dge.net
DNS ASK pi###army.net
DNS ASK mu###rmy.net
DNS ASK pi###april.net
DNS ASK mu###pril.net
DNS ASK ve###rmy.net
DNS ASK fa###dge.net
DNS ASK we###ray.net
DNS ASK fa###rmy.net
DNS ASK to###dge.net
DNS ASK ve###pril.net
DNS ASK we###rmy.net
DNS ASK ve###ray.net
DNS ASK we###pril.net
DNS ASK al###being.net
DNS ASK ri###nstorm.net
DNS ASK pr####tbottom.net
DNS ASK ca####nbring.net
DNS ASK tr###gray.net
DNS ASK yo###ray.net
DNS ASK wa###edge.net
DNS ASK ta###edge.net
DNS ASK mo###olor.net
DNS ASK jo####ymeasure.net
DNS ASK cr#####onaraminta.net
DNS ASK ef###tbuilt.net
DNS ASK th###while.net
DNS ASK mi###hown.net
DNS ASK ab###ell.net
DNS ASK le###form.net
DNS ASK mo###ugust.net
DNS ASK vi###rmy.net
DNS ASK lr###edge.net
DNS ASK vi###pril.net
DNS ASK lr###army.net
DNS ASK fi###ray.net
DNS ASK pl###april.net
DNS ASK vi###dge.net
DNS ASK pl###gray.net
DNS ASK lr###april.net
DNS ASK tr###army.net
DNS ASK yo###rmy.net
DNS ASK tr###april.net
DNS ASK yo###pril.net
DNS ASK lr###gray.net
DNS ASK vi###ray.net
DNS ASK tr###edge.net
DNS ASK yo###dge.net
'23#.#55.255.250':1900

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