Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
22/11/2024, 03:36
General
- Target EntrateSetup.exe
- Size 261KB
- Sample241122-d6bprstne1
- SHA256 103bc884dce60ec680dd00bcd2d45721319b526b2f6ae7ebe75c73a5c977dafe
Malware Config
Signatures
- Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 2 IoCs
- Program crash 6 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
- Modifies Internet Explorer Phishing Filter 1 TTPs 3 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\EntrateSetup.exe"C:\Users\Admin\AppData\Local\Temp\EntrateSetup.exe"1⤵
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 5882⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 7962⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 8042⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 8202⤵
- Program crash
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C:\Windows\SysWOW64\explorer.exe"C:\Windows\system32\explorer.exe"2⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer Phishing Filter
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\vssadmin.exevssadmin.exe Delete Shadows /All /Quiet3⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 8242⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 1402⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 1808 -ip 18081⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1808 -ip 18081⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1808 -ip 18081⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1808 -ip 18081⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1808 -ip 18081⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1808 -ip 18081⤵
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
01000000
memory/952-32-0x0000000001260000-0x000000000129C000-memory.dmp
memory/952-40-0x0000000001260000-0x000000000129C000-memory.dmp
memory/952-37-0x0000000001260000-0x000000000129C000-memory.dmp
memory/1808-20-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-17-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-5-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-4-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-3-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-26-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-27-0x0000000000400000-0x0000000000445000-memory.dmp
memory/1808-25-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-24-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-23-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-22-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-21-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-11-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-19-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-18-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-6-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-16-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-15-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-14-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-13-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-12-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-2-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-1-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-0-0x00000000026B0000-0x0000000002A00000-memory.dmp
memory/1808-7-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-8-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-9-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-10-0x0000000002680000-0x0000000002681000-memory.dmp
memory/1808-43-0x0000000000400000-0x0000000000445000-memory.dmp