Analysis
- max time kernel
121s - max time network
126s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
- submitted
21/02/2024, 07:34
General
- Target efe5bcf6972da315764576095dded48dec0ed56c9474983e402a144eecdcf714.exe
- Size 4.9MB
- Sample240221-jebtcadd63
- SHA256 efe5bcf6972da315764576095dded48dec0ed56c9474983e402a144eecdcf714
Malware Config
Extracted
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sality
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http://89.119.67.154/testo5/
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http://kukutrustnet777.info/home.gif
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http://kukutrustnet888.info/home.gif
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http://kukutrustnet987.info/home.gif
Signatures
- Modifies firewall policy service 2 TTPs 3 IoCs
- Sality
Sality is backdoor written in C++, first discovered in 2003.
- UAC bypass 3 TTPs 1 IoCs
- Windows security bypass 2 TTPs 6 IoCs
- UPX packed file 16 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Windows security modification 2 TTPs 7 IoCs
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
- Drops file in Windows directory 2 IoCs
- Modifies Internet Explorer settings 1 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 20 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- System policy modification 1 TTPs 1 IoCs
Processes
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C:\Windows\system32\DllHost.exeC:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}1⤵
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
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C:\Users\Admin\AppData\Local\Temp\efe5bcf6972da315764576095dded48dec0ed56c9474983e402a144eecdcf714.exe"C:\Users\Admin\AppData\Local\Temp\efe5bcf6972da315764576095dded48dec0ed56c9474983e402a144eecdcf714.exe"2⤵
- Modifies firewall policy service
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\system32\Dwm.exe"C:\Windows\system32\Dwm.exe"1⤵
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C:\Windows\system32\taskhost.exe"taskhost.exe"1⤵
Network
MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Create or Modify System Process
1Windows Service
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
6Pre-OS Boot
1Bootkit
1Replay Monitor
Loading Replay Monitor...
Downloads
memory/1208-6-0x0000000001FF0000-0x0000000001FF2000-memory.dmp
memory/2372-28-0x0000000006400000-0x0000000006401000-memory.dmp
memory/2372-21-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-3-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-1-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-5-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-7-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-15-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-30-0x0000000005FF0000-0x0000000005FF2000-memory.dmp
memory/2372-0-0x0000000000400000-0x00000000004C1000-memory.dmp
memory/2372-24-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-4-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-26-0x0000000005FF0000-0x0000000005FF2000-memory.dmp
memory/2372-18-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-27-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-31-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-33-0x0000000006400000-0x0000000006401000-memory.dmp
memory/2372-34-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-45-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-46-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-50-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-53-0x0000000005FF0000-0x0000000005FF2000-memory.dmp
memory/2372-51-0x0000000001DF0000-0x0000000002EAA000-memory.dmp
memory/2372-68-0x0000000000400000-0x00000000004C1000-memory.dmp