Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Dnegsjq' = '"%APPDATA%\Jjxbxli\Dnegsjq.exe"'
Creates or modifies the following files
- <SYSTEM32>\tasks\firefox default browser agent d972adee03c3b36b
Malicious functions
Creates and executes the following
- '' (downloaded from the Internet)
Creates and executes the following (exploit)
- 'C:\users\public\vbc.exe'
Injects code into
the following system processes:
- %WINDIR%\syswow64\explorer.exe
- %WINDIR%\explorer.exe
the following user processes:
- iexplore.exe
Hooks functions
in browsers
- iexplore.exe process, wininet.dll module
- firefox.exe process, nss3.dll module
Searches for registry branches where third party applications store passwords
- [<HKCU>\Software\Martin Prikryl]
- [<HKLM>\Software\Wow6432Node\Martin Prikryl]
Reads files which store third party applications passwords
- %LOCALAPPDATA%\google\chrome\user data\default\login data
- %LOCALAPPDATA%\google\chrome\user data\default\cookies
- %LOCALAPPDATA%\google\chrome\user data\default\web data
- %APPDATA%\opera software\opera stable\login data
Modifies file system
Creates the following files
- C:\users\public\vbc.exe
- %APPDATA%\jjxbxli\dnegsjq.exe
- %APPDATA%\jvsvjhe
- %APPDATA%\ujhcruv
- %TEMP%\d548.exe
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
- %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
- %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
- %TEMP%\f269.tmp
- %TEMP%\f354.tmp
- %TEMP%\f799.tmp
- %TEMP%\f7b9.tmp
- %TEMP%\f7d9.tmp
- %TEMP%\f7da.tmp
- %TEMP%\f7fb.tmp
Sets the 'hidden' attribute to the following files
- %APPDATA%\jvsvjhe
- %APPDATA%\ujhcruv
Deletes the following files
- C:\users\public\vbc.exe
- %TEMP%\f269.tmp
- %TEMP%\f354.tmp
- %TEMP%\f799.tmp
- %TEMP%\f7b9.tmp
- %TEMP%\f7d9.tmp
- %TEMP%\f7da.tmp
- %TEMP%\f7fb.tmp
Network activity
Connects to
- '19#.#.27.140':80
- 'cl###nmy.com':80
- 'al###rik.com':80
- 'ar###tum.com.br':80
TCP
HTTP GET requests
- http://19#.#.27.140/8701/vbc.exe
- http://19#.#.27.140/image/Hfddnw.bmp
- http://ar###tum.com.br/well-known/acme-challenge/k/h/d/g/Xzcrd.png
HTTP POST requests
- http://al###rik.com/
UDP
- DNS ASK cl###nmy.com
- DNS ASK al###rik.com
- DNS ASK ar###tum.com.br
Miscellaneous
Creates and executes the following
- '%TEMP%\d548.exe'
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==' (with hidden window)
Executes the following
- '%CommonProgramFiles%\microsoft shared\equation\eqnedt32.exe' -Embedding
- '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
- '%WINDIR%\syswow64\explorer.exe'
- '%WINDIR%\explorer.exe'
