TrojanSpy.Win32.ICEDID.FAIL

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes then deletes itself afterward.

It does not have any propagation routine.

It executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.

Arrival Details

This Trojan Spy arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan Spy adds the following folders:

• %Application Data%\{Random characters}

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It drops the following files:

• %Application Data%\{Random characters}\{Random letters}.dll (Slightly modified version of the sample)

(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Roaming on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

It adds the following processes:

• %System%\msiexec.exe /i {Random 6 characters}.msi

(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

It executes then deletes itself afterward.

It adds the following mutexes to ensure that only one of its copies runs at any one time:

• {{Random 8 characters}-{Random 4 characters}-{Random 4 characters}-{Random 4 characters}-{Random 8 characters}}

Propagation

This Trojan Spy does not have any propagation routine.

Backdoor Routine

This Trojan Spy executes the following commands from a remote malicious user:

• Update config
• Reboot system
• Execute arbitrary commands
• Steal cookies
• Steal login information
• Get logs
• Get file information

It connects to the following websites to send and receive information:

• {BLOCKED}rodrigo.pw/audio/?z={Encrypted information}
• {BLOCKED}olos.best/audio/?z={Encrypted information}

Rootkit Capabilities

This Trojan Spy does not have rootkit capabilities.

Download Routine

This Trojan Spy accesses the following websites to download files:

• {BLOCKED}rodrigo.pw/image/?id={Random characters}
• {BLOCKED}olos.best/image/?id={Random characters}

It saves the files it downloads using the following names:

• %AppDataLocal%\{{Random 8 characters}-{Random 4 characters}-{Random 4 characters}-{Random 4 characters}-{Random 8 characters}}\{Random characters}.png (Obfuscated module)

(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)

Information Theft

Upon execution of the affected application, it gathers the following information:

• Username
• Workgroup
• Computer name
• Indicator if sample is run in admin
• Indicator if sample is run in virtual machine
• OS version

Other Details

This Trojan Spy does not exploit any vulnerability.

It adds the following scheduled tasks:

• Task name: {Random characters}_{{Random 8 characters}-{Random 4 characters}-{Random 4 characters}-{Random 4 characters}-{Random 8 characters}}
  Task to be run: regsvr32.exe /s {Copy of filename}