Ransom_CERBER.VSAGZX

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

It deletes itself after execution.

Arrival Details

This Trojan 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 creates the following folders:

• %User Temp%\6abce574

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)

Dropping Routine

This Trojan drops the following files:

• %User Temp%\6abce574\42c5.tmp
• %User Temp%\6abce574\4afc.tmp
• %User Profile%\cookies\_READ_THI$_FILE_QQ9V_.hta
• %User Profile%\cookies\_READ_THI$_FILE_TXFQWA6_.txt
• %System%\config\systemprofile\desktop\_READ_THI$_FILE_OIDH5X_.hta
• %System%\config\systemprofile\desktop\_READ_THI$_FILE_ZCHW028_.txt

(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)

Other Details

This Trojan connects to the following possibly malicious URL:

• {BLOCKED}0.1
• {BLOCKED}132.24
• {BLOCKED}.151.172
• {BLOCKED}9.135.155

It deletes itself after execution.

This report is generated via an automated analysis system.