Analysis
- user interaction
yes - max time kernel
150s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
- submitted
27/08/2026, 02:11
General
- Target Synapse Bootstrapper.exe
- Size 544KB
- Sample260827-cmhtasyerc
- SHA256 8a3b4f5568afdd277f1b134eb72dbcf4400319b1dced996a8b53da0e281818e3
Malware Config
Signatures
- Downloads MZ/PE file 2 IoCs
- Executes dropped EXE 2 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 4 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- ConfuserEx .NET packer 3 IoCs
Detects ConfuserEx .NET packer.
- Costura .NET executable packer 1 IoCs
Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Synapse Bootstrapper.exe"C:\Users\Admin\AppData\Local\Temp\Synapse Bootstrapper.exe"1⤵
- Downloads MZ/PE file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Synapse Launcher.exe"C:\Users\Admin\AppData\Local\Temp\Synapse Launcher.exe"2⤵
- Downloads MZ/PE file
- Executes dropped EXE
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\bin\Decompiler.exe"bin\Decompiler.exe"3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Synapse Launcher.exe
Decompiler.exe
memory/4536-7-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-9-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-4-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-5-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-6-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-0-0x00007FF96A6EF000-0x00007FF96A6F0000-memory.dmp
memory/4536-8-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-34-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-10-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-11-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-12-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-13-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/4536-3-0x000001F279450000-0x000001F2794AE000-memory.dmp
memory/4536-1-0x000001F278F80000-0x000001F27900E000-memory.dmp
memory/4536-2-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-35-0x0000018C47AD0000-0x0000018C47EB2000-memory.dmp
memory/5672-31-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-32-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-33-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-29-0x0000018C2D060000-0x0000018C2D400000-memory.dmp
memory/5672-36-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-40-0x0000018C47F00000-0x0000018C47FA2000-memory.dmp
memory/5672-39-0x0000018C47EF0000-0x0000018C47EFE000-memory.dmp
memory/5672-38-0x0000018C48A10000-0x0000018C48C2C000-memory.dmp
memory/5672-37-0x0000018C2D860000-0x0000018C2D86A000-memory.dmp
memory/5672-30-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-47-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp
memory/5672-48-0x0000018C4CA40000-0x0000018C4CB02000-memory.dmp
memory/5672-49-0x00007FF96A560000-0x00007FF96AF04000-memory.dmp