Analysis
- max time kernel
145s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20231222-en - resource tags
- submitted
14/02/2024, 03:14
General
- Target start.bat
- Size 548B
- Sample240214-drczaafe3s
- SHA256 cab7b8973dd5f7252af6a1a080deec442acd1e6bdd6c7476bd73e39553751222
Malware Config
Signatures
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in Windows directory 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\start.bat"1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\cacls.exe"C:\Windows\system32\cacls.exe" "C:\Windows\system32\config\system"2⤵
-
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C:\Users\Admin\AppData\Local\Temp\Nezur.exeNezur.exe auto_load.txt2⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exeschtasks /create /sc daily /st 10:17 /f /tn WindowsSetup /tr "C:/Windows/System32/oobe/Setup.exe" /rl highest3⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/1788-0-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-1-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-2-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-9-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-8-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-7-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-6-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-5-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-4-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-3-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-10-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-11-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-12-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-13-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-14-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-15-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-16-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-17-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-18-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-19-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-20-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-22-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-21-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-23-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-24-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-25-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-26-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-28-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-27-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-29-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-30-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-31-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-32-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-34-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-33-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-35-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-36-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-37-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-38-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-39-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-41-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-40-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-43-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-42-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-44-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-45-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-46-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-47-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-48-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-49-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-50-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-54-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-55-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-56-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-53-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-57-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-52-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-51-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-58-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-59-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-60-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-61-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-62-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-63-0x000000007F380000-0x000000007F390000-memory.dmp
memory/1788-172-0x0000000003280000-0x0000000003281000-memory.dmp
memory/1788-173-0x0000000003280000-0x0000000003281000-memory.dmp
memory/1788-179-0x0000000003280000-0x0000000003281000-memory.dmp
memory/1788-180-0x0000000003280000-0x0000000003281000-memory.dmp
memory/1788-181-0x0000000003280000-0x0000000003281000-memory.dmp