Analysis
- max time kernel
298s - max time network
306s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
18/03/2024, 15:12
General
- Target SurrogateServerIntoSvc.exe
- Size 147.8MB
- Sample240318-slmnvscc5w
- SHA256 df18a66e0d7dac7371e4371005a83e4735f5e22377b28f00bb0f41a3feee92a5
Malware Config
Signatures
- Detect ZGRat V1 35 IoCs
- ZGRat
ZGRat is remote access trojan written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 17 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SurrogateServerIntoSvc.exe"C:\Users\Admin\AppData\Local\Temp\SurrogateServerIntoSvc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SurrogateServerIntoSvc.exeC:\Users\Admin\AppData\Local\Temp\SurrogateServerIntoSvc.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\SurrogateServerIntoSvc.exeC:\Users\Admin\AppData\Local\Temp\SurrogateServerIntoSvc.exe2⤵
- Checks computer location settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\9ed903e6-1465-4986-945c-fc7a54c0a234.vbs"3⤵
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\985b85f1-f0b3-428f-8084-adb8f8bb7652.vbs"3⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
SurrogateServerIntoSvc.exe.log
985b85f1-f0b3-428f-8084-adb8f8bb7652.vbs
9ed903e6-1465-4986-945c-fc7a54c0a234.vbs
memory/2120-0-0x00000000005E0000-0x000000000090E000-memory.dmp
memory/2120-1-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/2120-2-0x00000000052B0000-0x0000000005526000-memory.dmp
memory/2120-3-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-4-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-6-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-8-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-10-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-12-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-14-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-16-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-18-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-22-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-24-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-26-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-20-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-30-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-32-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-34-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-38-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-36-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-40-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-28-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-42-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-46-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-48-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-44-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-50-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-52-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-54-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-56-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-58-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-60-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-62-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-64-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-66-0x00000000052B0000-0x0000000005520000-memory.dmp
memory/2120-2149-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/2120-4780-0x0000000005230000-0x0000000005240000-memory.dmp
memory/2120-4781-0x0000000000DE0000-0x0000000000DE1000-memory.dmp
memory/2120-4782-0x0000000001170000-0x000000000122E000-memory.dmp
memory/2120-4783-0x0000000000F80000-0x0000000000FCC000-memory.dmp
memory/2120-4784-0x00000000058F0000-0x0000000005982000-memory.dmp
memory/2120-4785-0x0000000005AF0000-0x0000000005B56000-memory.dmp
memory/2120-4786-0x0000000006210000-0x00000000067B4000-memory.dmp
memory/2120-4790-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/4444-4792-0x0000000000400000-0x000000000051A000-memory.dmp
memory/4444-4791-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/4444-4793-0x0000000005B90000-0x0000000005BA0000-memory.dmp
memory/4444-4794-0x0000000006280000-0x000000000628E000-memory.dmp
memory/4444-4795-0x00000000062B0000-0x00000000062BA000-memory.dmp
memory/4444-4805-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/4444-4806-0x0000000005B90000-0x0000000005BA0000-memory.dmp